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<channel>
	<title>NGC天体 | 星空の風景, 日々の風景</title>
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	<description>星空のこと. 日々に想うこと.</description>
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		<title>NGC4438-M86, Arp286, Arp272</title>
		<link>https://globe3.ddns.net/wp/ngc4438-m86-arp286-arp272/</link>
					<comments>https://globe3.ddns.net/wp/ngc4438-m86-arp286-arp272/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Tue, 26 May 2026 06:40:25 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[画像処理]]></category>
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					<description><![CDATA[NGC4438 M86 NGC4402 西に傾く春の星座が名残惜しく、晩春には、形に面白みがある銀河たちを撮影しました。 左側、縦長の菱形がNGC4438。右側、ぼんやりと楕円型がM86です。乙女座にあります。右上にある [&#8230;]]]></description>
										<content:encoded><![CDATA[
<h2 class="wp-block-heading">NGC4438 M86 NGC4402</h2>



<p class="wp-block-paragraph">西に傾く春の星座が名残惜しく、晩春には、形に面白みがある銀河たちを撮影しました。</p>



<figure class="wp-block-image size-full"><img fetchpriority="high" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/05/NGC4438-M86_HEUIB-II_2h54m_2026-05-16T21-03-29_recomposition_800.jpg" alt="" class="wp-image-3407" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/05/NGC4438-M86_HEUIB-II_2h54m_2026-05-16T21-03-29_recomposition_800.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/05/NGC4438-M86_HEUIB-II_2h54m_2026-05-16T21-03-29_recomposition_800-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/05/NGC4438-M86_HEUIB-II_2h54m_2026-05-16T21-03-29_recomposition_800-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/05/NGC4438-M86_HEUIB-II_2h54m_2026-05-16T21-03-29_recomposition_800-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">左側、縦長の菱形がNGC4438。右側、ぼんやりと楕円型がM86です。乙女座にあります。<br>右上にある銀河は、NGC4402です。この銀河は、乙女座銀河団の中心に向かって移動中に、その中心から流れてくる高温のガスにより、NGC4402を形作る水素やヘリウムなどのガスなどが吹き飛ばされている様子らしいです。菱形のNGC4438や楕円のM86よりも、その姿に惹かれたNGC4402を強調した画像処理を行いました。</p>



<p class="wp-block-paragraph">Name: NGC4438, M86, NGC4402<br>Date: 2026-05-16 T21-03<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -20degrees<br>Exposure: 180s x 58 (total 2h54m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox, Cosmetic Correction<br>Star Processing Python script: Aberrations Remover, Cosmic Clarity Sharpen (Stel_amt=0.16, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism, GraXpert, SyQon Starless</p>



<h2 class="wp-block-heading">Arp286</h2>



<p class="wp-block-paragraph">Arp286は乙女座にある銀河です。</p>



<figure class="wp-block-image size-full"><img decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/05/Arp286_HEUIB-II_1h24m_2026-05-17T00-21-53_recomposition_800.jpg" alt="" class="wp-image-3410" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/05/Arp286_HEUIB-II_1h24m_2026-05-17T00-21-53_recomposition_800.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/05/Arp286_HEUIB-II_1h24m_2026-05-17T00-21-53_recomposition_800-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/05/Arp286_HEUIB-II_1h24m_2026-05-17T00-21-53_recomposition_800-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/05/Arp286_HEUIB-II_1h24m_2026-05-17T00-21-53_recomposition_800-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp286<br>Date: 2026-05-17 T00-21<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -20degrees<br>Exposure: 180s x 28 (total 1h24m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox, Cosmetic Correction<br>Star Processing Python script: Aberrations Remover, Cosmic Clarity Sharpen (Stel_amt=0.16, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism, GraXpert, SyQon Starless</p>



<h2 class="wp-block-heading">Arp272</h2>



<p class="wp-block-paragraph">画像中心から少し右に映る衝突した銀河、NGC6050とIC1179が、Arp272です。<br>ヘルクレス座にあります。<br>明け方の画像には南北に移動する人工衛星が映りました。<br></p>



<p class="wp-block-paragraph">Name: Arp272<br>Date: 2026-05-17 T01-51<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -20degrees<br>Exposure: 180s x25 (total 1h15m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox, Cosmetic Correction<br>Star Processing Python script: Aberrations Remover, Cosmic Clarity Sharpen (Stel_amt=0.16, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism, GraXpert, SyQon Starless</p>



<p class="wp-block-paragraph">SyQon Starless 若しくは、Starnet 2、いずれでも綺麗に恒星と星雲の分離ができないので、この画像のみは、分離せずに処理を行います。</p>



<h2 class="wp-block-heading">Siril 画像処理</h2>



<ul class="wp-block-list">
<li>勾配補正、色校正など
<ul class="wp-block-list">
<li>VeraLux Nox (Background Extraction)</li>



<li>SPCC (Gaia Spectrum)</li>



<li>Cosmetic Correction (CFAあり)</li>



<li>別名でファイル保存</li>
</ul>
</li>
</ul>



<ul class="wp-block-list">
<li>恒星処理
<ul class="wp-block-list">
<li>Desaturate Stars: 必要に応じて</li>



<li>Aberrations Remover: 必要に応じて</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only (Stel_amt=0.16 若しくは0.32, Nstel_str=3)</li>



<li>Starnet 2 若しくは SyQon Starless</li>
</ul>
</li>



<li>銀河星雲処理
<ul class="wp-block-list">
<li>ノイズ除去 : SyQon Prism (Strength=0.64, Target Median=0.15, Std)</li>



<li>Deconvolution: GraXpert (Strength=0.64)</li>



<li>SyQon Starless (Starnet 2は、星雲部分を削除してしまう事がある。または、逆もある)</li>



<li>ストレッチ（HT,GHS）</li>



<li>Wavelets Transformation</li>



<li>ノイズ除去 : SyQon Prism (Strength=0.64, Taget Median=0.2, Soft)</li>



<li>色補正: Color saturation, threshold 1.00</li>
</ul>
</li>



<li>恒星、銀河星雲再合成
<ul class="wp-block-list">
<li>Star recomposition</li>
</ul>
</li>
</ul>
]]></content:encoded>
					
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			</item>
		<item>
		<title>IC 342, NGC 2146, NGC1579</title>
		<link>https://globe3.ddns.net/wp/ic342-ngc2146-ngc1579-20251123-29/</link>
					<comments>https://globe3.ddns.net/wp/ic342-ngc2146-ngc1579-20251123-29/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Fri, 17 Apr 2026 11:49:58 +0000</pubDate>
				<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3178</guid>

					<description><![CDATA[2025年11月、23日、29日に撮影した銀河たちです。 IC 342 きりん座に位置する銀河。 Name: IC 342Date: 2025-11-23 T01-54SQM: 21.64 mag/arcsec2 (Ya [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">2025年11月、23日、29日に撮影した銀河たちです。</p>



<h2 class="wp-block-heading">IC 342</h2>



<figure class="wp-block-image size-full"><img decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition.jpg" alt="" class="wp-image-3195" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">きりん座に位置する銀河。</p>



<p class="wp-block-paragraph">Name: IC 342<br>Date: 2025-11-23 T01-54<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 25 (total 1h15m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox<br>Star Processing Python script, etc: Aberrations Remover, Cosmic Clarity Sharpen (Stel_amt=0.32, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script, etc: GraXpert (Strength=90, PSF Size =4.1), Cosmetic Correction, SyQon Prism (Strength=64%, Target median=0.15) , SyQon Starless, Wavelet, SyQon Prism (Strength=64%, Target median=0.00) HT, GHS</p>



<p class="wp-block-paragraph">下の画像は、広がっている銀河の腕を強調した処理を行いました。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition.jpg" alt="" class="wp-image-3469" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">GHSとWavelet, ノイズ除去の違いが下画像、左右にはあります。</p>



<div class="wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex">
<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow">
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition.jpg" alt="" class="wp-image-3469" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_GHS-b_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</div>



<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow">
<figure class="wp-block-image size-full"><img decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition.jpg" alt="" class="wp-image-3195" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/IC342_HEUIB-II_2025-11-23T01-54_1h15m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</div>
</div>



<h2 class="wp-block-heading">NGC 2146, NGC 2146A</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2146A_HEUIB-II_1h06m_2025-11-23T03-26_800_recomposition.jpg" alt="" class="wp-image-3190" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2146A_HEUIB-II_1h06m_2025-11-23T03-26_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2146A_HEUIB-II_1h06m_2025-11-23T03-26_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2146A_HEUIB-II_1h06m_2025-11-23T03-26_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2146A_HEUIB-II_1h06m_2025-11-23T03-26_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">きりん座に位置する銀河。近くを通った銀河により、腕が曲げられたそうです。<br>興味深い形をしています。さらに露出時間を重ねたいです。</p>



<p class="wp-block-paragraph">Name: NGC 2146<br>Date: 2025-11-23 T03-26<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 22 (total 1h06m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox<br>Star Processing Python script: Aberrations Remover, Cosmic Clarity Sharpen (Stel_amt=0.32, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism (Strength=64%, Target median=0.140) , GraXpert, SyQon Starless<br>Siril Filters: Cosmetic Correction, À Trous Wavelets Transform, Contrast-Limited Adaptive Histogram Equalization (CLAHE)</p>



<h2 class="wp-block-heading">NGC 1579</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC_1579_Light_HEUIB-II_4h09m_2025-11-29_800_recomposition.jpg" alt="" class="wp-image-3193" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC_1579_Light_HEUIB-II_4h09m_2025-11-29_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC_1579_Light_HEUIB-II_4h09m_2025-11-29_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC_1579_Light_HEUIB-II_4h09m_2025-11-29_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC_1579_Light_HEUIB-II_4h09m_2025-11-29_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">ペルセウス座にある星雲です。別名は、&#8221;Northern Trifid&#8221;<br>広がっている星雲を強調する処理を行いました。</p>



<p class="wp-block-paragraph">Name: NGC 1579<br>Date: 2025-11-29 T00-59<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 83 (total 4h09m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox<br>Star Processing Python script: Aberrations Remover, Cosmic Clarity Sharpen (Stel_amt=0.32, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism (Strength=64%, Target median=0.140) , GraXpert, SyQon Starless<br>Siril Filters: Cosmetic Correction, À Trous Wavelets Transform, Contrast-Limited Adaptive Histogram Equalization (CLAHE)</p>



<h2 class="wp-block-heading">Siril 画像処理</h2>



<p class="wp-block-paragraph">Siril 1.5 betaを使って画像処理します。</p>



<ul id="block-38592a4e-9105-41a4-b0a4-204e6907d0bc" class="wp-block-list">
<li>Background Extraction: VeraLux Nox</li>



<li>SPCC (Gaia Spectrum: G2Vなど)</li>



<li>別名でファイル保存
<ul class="wp-block-list">
<li>恒星処理
<ul class="wp-block-list">
<li>Desaturate Stars: 必要に応じて</li>



<li>Aberrations Remover: 必要に応じて</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only (Stel_amt=0.32, Nstel_str=3)</li>



<li>SyQon Starless</li>
</ul>
</li>



<li>銀河星雲処理
<ul class="wp-block-list">
<li>Deconvolution:  GraXpert</li>



<li>Cosmetic Correction</li>



<li>ノイズ除去 : SyQon Prism</li>



<li>SyQon Starless</li>



<li>Wavelet</li>



<li>ノイズ除去 : SyQon Prism</li>



<li>ストレッチ：GHS</li>



<li>色補正: LCh色空間: VeraLux Vectra</li>
</ul>
</li>
</ul>
</li>



<li>Star recomposition</li>
</ul>
]]></content:encoded>
					
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			</item>
		<item>
		<title>NGC 691 Group</title>
		<link>https://globe3.ddns.net/wp/ngc-691-group/</link>
					<comments>https://globe3.ddns.net/wp/ngc-691-group/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Mon, 13 Apr 2026 04:37:02 +0000</pubDate>
				<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3173</guid>

					<description><![CDATA[左側から、S字の様な IC167、複数のリングを持つ NGC 691、楕円銀河の NGC 680、腕が歪む NGC 678 それぞれ違った形の銀河が4つ、まとまった姿が面白く、撮影しました。右側の2つの銀河、楕円銀河NG [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph"></p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC691-Group_HEUIB-II_4h00m_2025-11-22_2025-11-28_800_recomposition.jpg" alt="" class="wp-image-3174" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC691-Group_HEUIB-II_4h00m_2025-11-22_2025-11-28_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC691-Group_HEUIB-II_4h00m_2025-11-22_2025-11-28_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC691-Group_HEUIB-II_4h00m_2025-11-22_2025-11-28_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC691-Group_HEUIB-II_4h00m_2025-11-22_2025-11-28_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">左側から、S字の様な IC167、複数のリングを持つ NGC 691、楕円銀河の NGC 680、腕が歪む NGC 678</p>



<p class="wp-block-paragraph">それぞれ違った形の銀河が4つ、まとまった姿が面白く、撮影しました。<br>右側の2つの銀河、楕円銀河NGC 680、腕が歪むNGC 678は重力の影響を及ぼし合っているようです。</p>



<p class="wp-block-paragraph">Name: NGC 691 group<br>Date: 2025-11-22 T21-59, 2025-11-28 T23-39<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 80 (total 4h00m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox<br>Star Processing Python script: Aberrations Remover, Cosmic Clarity Sharpen, SyQon Starless<br>Galaxy Processing Python script: SyQon Prism, GraXpert, SyQon Starless</p>



<h2 class="wp-block-heading">Siril 画像処理</h2>



<ul id="block-38592a4e-9105-41a4-b0a4-204e6907d0bc" class="wp-block-list">
<li>Siril 1.5 bata</li>



<li>Background Extraction: VeraLux Nox</li>



<li>SPCC (Gaia Spectrum: G2Vなど)</li>



<li>別名でファイル保存
<ul class="wp-block-list">
<li>恒星処理
<ul class="wp-block-list">
<li>Desaturate Stars: 必要に応じて</li>



<li>Aberrations Remover: 必要に応じて</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only (Stel_amt=0.32, Nstel_str=3)</li>



<li>SyQon Starless</li>
</ul>
</li>



<li>銀河星雲処理
<ul class="wp-block-list">
<li>ノイズ除去 : SyQon Prism</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Non-Stellar Only. 若しくは GraXpert</li>



<li>SyQon Starless</li>



<li>ストレッチ（GHS）</li>
</ul>
</li>
</ul>
</li>



<li>Star recomposition</li>
</ul>
]]></content:encoded>
					
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			</item>
		<item>
		<title>大熊座 Arp 336, おおいぬ座 NGC2207-IC2163</title>
		<link>https://globe3.ddns.net/wp/arp-336-ngc2207-ic2163-siril-syqon/</link>
					<comments>https://globe3.ddns.net/wp/arp-336-ngc2207-ic2163-siril-syqon/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Sun, 05 Apr 2026 04:06:50 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[画像処理]]></category>
		<category><![CDATA[雑感]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3139</guid>

					<description><![CDATA[Arp 336 大熊座 渦巻きが印象的な銀河です。星やガスやダストが、平面に対してほぼ垂直に周回しています。まるで、牡蠣のベーコン巻きのベーコンの様に、ぐるりと取り巻いています。 シーイングの良いときに出来るだけ、露光時 [&#8230;]]]></description>
										<content:encoded><![CDATA[
<h2 class="wp-block-heading">Arp 336 大熊座</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2685_HEUIB-II_7h51m_2026-03-20T19-36_03-21T20-56-08_800_recomposition.jpg" alt="" class="wp-image-3163" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2685_HEUIB-II_7h51m_2026-03-20T19-36_03-21T20-56-08_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2685_HEUIB-II_7h51m_2026-03-20T19-36_03-21T20-56-08_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2685_HEUIB-II_7h51m_2026-03-20T19-36_03-21T20-56-08_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2685_HEUIB-II_7h51m_2026-03-20T19-36_03-21T20-56-08_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">渦巻きが印象的な銀河です。<br>星やガスやダストが、平面に対してほぼ垂直に周回しています。<br>まるで、牡蠣のベーコン巻きのベーコンの様に、ぐるりと取り巻いています。</p>



<p class="wp-block-paragraph">シーイングの良いときに出来るだけ、露光時間を重ねて表現したい、極リング銀河です。</p>



<p class="wp-block-paragraph">Name: Arp 336 (NGC 2685)<br>Date: 2026-03-20 T19-36, 2026-03-21 T20-56<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -20degrees<br>Exposure: 180s x 157 (total 7h51m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox<br>Star Processing Python script: Aberrations Remover(Strength:0.64), Cosmic Clarity Sharpen (Stel_amt=0.32, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism, GraXpert, SyQon Starless<br>Siril Filter: Color Calibration, Contrast-Limited Adaptive Histogram Equalization (CLAHE)</p>



<h2 class="wp-block-heading">NGC2207-IC2163 おおいぬ座</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2207-IC2163_2026-03-21T19-21_1h27m_800_recomposition.jpg" alt="" class="wp-image-3152" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2207-IC2163_2026-03-21T19-21_1h27m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2207-IC2163_2026-03-21T19-21_1h27m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2207-IC2163_2026-03-21T19-21_1h27m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/NGC2207-IC2163_2026-03-21T19-21_1h27m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">春分になり、去りゆく冬の星座に敬意を込めて、NGC2207とIC2163を撮影しました。</p>



<p class="wp-block-paragraph">NGC2207とIC2163は、おおいぬ座にある銀河です。<br>2つの銀河は、衝突合体の初期段階のようです。</p>



<p class="wp-block-paragraph">複数日分の露光画像にしたく、2026年1月17日にも撮影してましたが、シーイングが悪く、一日だけの露出画像にしました。二日間の複合ですと、ボテボテの画像になってます。<br>シーイングはとても大切と感じます。</p>



<p class="wp-block-paragraph">Name: NGC2207-IC2163<br>Date: 2026-03-21 T19-21<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -20degrees<br>Exposure: 180s x 29 (total 1h27m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux Nox<br>Star Processing Python script: Aberrations Remover(Strength:0.86), Cosmic Clarity Sharpen (Stel_amt=0.32, Nstel_str=3), SyQon Starless<br>Galaxy Processing Python script: SyQon Prism, GraXpert (Strength:0.5), SyQon Starless</p>



<hr class="wp-block-separator has-alpha-channel-opacity"/>



<h2 class="wp-block-heading">熊と犬の星座</h2>



<p class="wp-block-paragraph">熊と犬の星座<br><br>冬から春へ向かう夜空の下で、<br>44年目の望遠鏡が、1億2200万年前の光を捉えている。<br><br>その隣で、<br>想像を大きくして、熊と犬を夜空に描きます。<br>その様な時間が好きです。</p>



<h2 class="wp-block-heading">Siril 画像処理</h2>



<p class="wp-block-paragraph">Siril 1.5 beta を使って画像処理します。</p>



<ul id="block-38592a4e-9105-41a4-b0a4-204e6907d0bc" class="wp-block-list">
<li>Background Extraction: VeraLux Nox</li>



<li>SPCC (Gaia Spectrum: G2Vなど)</li>



<li>別名でファイル保存
<ul class="wp-block-list">
<li>恒星処理
<ul class="wp-block-list">
<li>Desaturate Stars: 必要に応じて</li>



<li>Aberrations Remover: 必要に応じて</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only (Stel_amt=0.5, Nstel_str=3)</li>



<li>SyQon Starless</li>
</ul>
</li>



<li>銀河星雲処理
<ul class="wp-block-list">
<li>ノイズ除去 : SyQon Prism</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Non-Stellar Only. 若しくは GraXpert</li>



<li>SyQon Starless</li>



<li>ストレッチ（GHS）</li>



<li>色補正: LCh色空間: VeraLux Vectra</li>
</ul>
</li>
</ul>
</li>



<li>Star recomposition</li>
</ul>
]]></content:encoded>
					
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			</item>
		<item>
		<title>NGC 3079 と クエーサー</title>
		<link>https://globe3.ddns.net/wp/ngc3079-twin-quasar-q0957-561/</link>
					<comments>https://globe3.ddns.net/wp/ngc3079-twin-quasar-q0957-561/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Wed, 04 Mar 2026 07:44:43 +0000</pubDate>
				<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[画像処理]]></category>
		<category><![CDATA[雑感]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3060</guid>

					<description><![CDATA[Name: NGC 3079Date: 2026-02-21 T20-51SQM: 21.64 mag/arcsec2 (Yamanashi)Optics: Takahashi TS-160, HEUIB-IICamer [&#8230;]]]></description>
										<content:encoded><![CDATA[
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_800_recomposition.jpg" alt="" class="wp-image-3071" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: NGC 3079<br>Date: 2026-02-21 T20-51<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 11 (total 33m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, StarNet2, Cosmic Clarity<br>Star Processing Python script: VeraLux Nox, Cosmic Clarity Sharpen (Stel_amt=0.32, Nstel_str=3)<br>Galaxy Processing Python script: GraXpert, VeraLux Silentium</p>



<p class="wp-block-paragraph">X線観測衛星チャンドラとハッブル宇宙望遠鏡により捉えられた、スーパーウィンドウが印象的なNGC 3079をネットで調べている時に、その側に写っているクエーサーについても調べました。</p>



<p class="wp-block-paragraph">これは、遠方にあるクエーサーが、地球から見て手前にある銀河の重力により、曲げられて、二重に見えている姿が写っています。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="606" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_up_recomposition.jpg" alt="" class="wp-image-3075" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_up_recomposition.jpg 606w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_up_recomposition-300x396.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC3079_HEUIB-II_33m_2026-02-21T20-51_up_recomposition-150x198.jpg 150w" sizes="(max-width: 606px) 100vw, 606px" /></figure>



<p class="wp-block-paragraph">丸で囲まれた2つの恒星の様に写った星が、クエーサーだそうです。</p>



<p class="wp-block-paragraph">ストラスブール天文データセンター(Centre de données astronomiques de Strasbourg)が提供する、SIMBAD astronomical database(SIMBAD天体データーベース)にて、この天体を検索します。</p>



<p class="wp-block-paragraph"><strong>QSO B0957+5608B</strong> &#8212; Quasar<br><a rel="noopener" target="_blank" href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=%40507618&amp;Name=QSO%20B0957%2b5608B&amp;submit=submit">https://simbad.cds.unistra.fr/simbad/sim-id?Ident=%40507618&amp;Name=QSO%20B0957%2b5608B&amp;submit=submit</a></p>



<p class="wp-block-paragraph"><strong>8C 0958+561</strong> &#8212; Quasar<br><a rel="noopener" target="_blank" href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=%40507146&amp;Name=8C%200958%2b561&amp;submit=submit">https://simbad.cds.unistra.fr/simbad/sim-id?Ident=%40507146&amp;Name=8C%200958%2b561&amp;submit=submit</a></p>



<p class="wp-block-paragraph">見かけの明るさが、16.95等級<br>クエーサーが撮影できた事に驚き、その距離が 157.57億光年(?)にびっくりしました。<br></p>
]]></content:encoded>
					
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			</item>
		<item>
		<title>VeraLux と Siril 1.5 と Arp273、NGC2403</title>
		<link>https://globe3.ddns.net/wp/veralux-siril-dev-astronomical-image-processing-arp273/</link>
					<comments>https://globe3.ddns.net/wp/veralux-siril-dev-astronomical-image-processing-arp273/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Thu, 29 Jan 2026 10:07:13 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=2900</guid>

					<description><![CDATA[これは、VreraLuxの私的メモです。 VeraLux Riccardo Paterniti さんが、 Siril/Python 用に開発した、Unified Photometric Engine: HyperMetr [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">これは、VreraLuxの私的メモです。</p>



<h2 class="wp-block-heading">VeraLux</h2>



<p class="wp-block-paragraph">Riccardo Paterniti さんが、 Siril/Python 用に開発した、<br>Unified Photometric Engine: HyperMetric Stretch &amp; StarComposer.<br>統合測光エンジン：ハイパーメトリックストレッチ＆スターコンポーザー.</p>



<p class="wp-block-paragraph">GNU General Public License v3.0 の下でライセンスされています。<br>このGPLv3 の条件に従い、このソフトウェアを自由に使用、変更、および配布できます。派生ソフトもオープンソースであり、元の著作権表示とリカルド・パテルニティ氏への帰属表示を保持しなければなりません。</p>



<p class="wp-block-paragraph">勾配補正:Nox<br>線形画像ノイズ制御（リニア画像ノイズ制御）: Silentium<br></p>



<h2 class="wp-block-heading">VeraLuxを用いて画像処理, Arp 273</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/01/2026_01-16-17_HEUIB-II_6h03m_recomposition_800.jpg" alt="" class="wp-image-2998" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/01/2026_01-16-17_HEUIB-II_6h03m_recomposition_800.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/01/2026_01-16-17_HEUIB-II_6h03m_recomposition_800-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/01/2026_01-16-17_HEUIB-II_6h03m_recomposition_800-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/01/2026_01-16-17_HEUIB-II_6h03m_recomposition_800-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp 237<br>Date: 2026 1-16 19:04, 1-17 19:03<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 121 (60+61, total 6h03m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, StarNet2, Cosmic Clarity<br>Star Processing Python script: VeraLux Nox, Aberration Remover, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: Cosmic Clarity Sharpen, VeraLux Silentium </p>



<ul class="wp-block-list">
<li>Siril 1.5 画像処理
<ul class="wp-block-list">
<li>Background Extraction: VeraLux Nox (若しくは、AutoBGE 又は GraXpert)</li>



<li>SPCC (Gaia Spectrum: G2V)</li>



<li>別名でファイル保存</li>



<li>恒星処理
<ul class="wp-block-list">
<li>Desaturate Stars</li>



<li>Aberrations Remover</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only</li>



<li>StarNet Star Removal</li>
</ul>
</li>



<li>銀河星雲処理
<ul class="wp-block-list">
<li>Deconvolution: Cosmic Clarity Sharpening, Non-Stellar Only</li>



<li>Cosmetic Correction:必要に応じて</li>



<li>StarNet Star Removal</li>



<li>ノイズ除去 : VeraLux Silentium (非AI) (若しくは GraXpert (AI))</li>



<li>ストレッチ（GHS）</li>
</ul>
</li>



<li>Star recomposition</li>
</ul>
</li>
</ul>



<h2 class="wp-block-heading">複数日画像を重ね合わせ</h2>



<p class="wp-block-paragraph">複数日に撮影した画像をSirilでスタックするには、ダーク、フラット校正された複数ファイルを用います。</p>



<p class="wp-block-paragraph">スクリプト処理した&#8221;process&#8221;ディレクトにある、&#8221;pp_light_00001.fit&#8221;などの、pp_lightファイル全てを使います。</p>



<p class="wp-block-paragraph">Sirilで作業しているディレクト（カレントディレクトリ）に、&#8221;lights&#8221;ディレクトリを作ります。<br>そこへ、それぞれの撮影日ごとに、ダーク、フラット校正された&#8221;pp_light_*.fit&#8221;ファイル全てを置きます。</p>



<p class="wp-block-paragraph">詳しくは、</p>




<a rel="noopener" target="_blank" href="https://www.youtube.com/watch?v=d0VnH-a8N08" title="Stacking Multi-Night Data in Siril (No SirilIC Needed!)" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://globe3.ddns.net/wp/wp-content/uploads/cocoon-resources/blog-card-cache/f07ec3b505b77f02902231a4bb920fe6.jpg" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="160" height="90" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">Stacking Multi-Night Data in Siril (No SirilIC Needed!)</div><div class="blogcard-snippet external-blogcard-snippet">Captured your target over several nights? In this video, I’ll show you how to stack all that data in Siril using the bui...</div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://www.youtube.com/watch?v=d0VnH-a8N08" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">www.youtube.com</div></div></div></div></a>



<p class="wp-block-paragraph">複数夜に渡る撮影画像を重ね合わせると、画像回転などの補正、モアレなどの構造が、元にある画像と判断される場合があります。<br>これを避けるためには、画像の端を切り取ります。</p>



<p class="wp-block-paragraph">それぞれの日の撮影画像に補正を行い、Sirilに登録した後に、Dark, Bias, Flat補正無しスタックを行います。&#8221;OSC_Preprocessing_WithoutDBF.ssf&#8221;に、次の変更を加え、drizzle, gaussian処理を行っています。</p>



<pre class="wp-block-code"><code># Align lights with Drizzle and Gaussian
register pp_light -drizzle -scale=1.0 -pixfrac=1.0 -kernel=gaussian

# Stack calibrated lights to result.fit
stack r_pp_light rej 3 3 -norm=addscale -output_norm -rgb_equal -32b -out=../result</code></pre>



<h2 class="wp-block-heading">勾配校正（勾配補正）: VeraLux Nox</h2>



<p class="wp-block-paragraph">簡易なマスキングツールを備えています。</p>



<p class="wp-block-paragraph">&#8220;Use PSF Auto-Masking&#8221;：画像内の星像からその広がりを検出し、マスクをかけて保護します。<br>Balanced: 30% から 70%の間が良いらしい。<br>&#8220;Sinal Rejection Power&#8221; : 信号除去の度合い。30%から70%が良いらしい。<br>DSO（Deep Space Object）をどの程度無視するか。70%を超えると保護を優先させます。<br>30%付近では諧調を優先させ、複雑なグラデーションを優先させます。</p>



<p class="wp-block-paragraph">&#8220;AUTO-CALCULATE&#8221;を押して計算結果を表示させます。<br>その後、&#8221;PROSESS&#8221;を押して、画像に処理を反映させます。</p>



<p class="wp-block-paragraph">VeraLux Nox操作画面右下にある、”目玉アイコン”をクリックすると、<br>削除された背景グラデーションが表示されるので、確認しましょう。そこに構造が見られるならば、マスキングを行いましょう。</p>



<p class="wp-block-paragraph">2. Manual Masking (optional)<br>&#8220;PAINT&#8221;と&#8221;LASSO&#8221;でマスクを作ります。&#8221;ERASE&#8221;で消せます。&#8221;Clear&#8221;で全て消せます。</p>



<p class="wp-block-paragraph">AutoBGE も GraXpertも、勾配補正に使えます。</p>



<h2 class="wp-block-heading">線形画像ノイズ制御：Denoising : VeraLux Silentium</h2>



<p class="wp-block-paragraph">このVeraLux Silentiumは、ストレッチ前の画像に用います。(非線形ツール)</p>



<p class="wp-block-paragraph">各パラメータは、</p>



<ul class="wp-block-list">
<li>Noise Intensity: ノイズ強度。ノイズ除去の強さ。</li>



<li>Detail Guard: 微細な構造を保護します。</li>



<li>Adaptive Noise Model: ノイズ統計を計算</li>



<li>Chrominance: カラーノイズを除去します。チェックを外すと&#8221;L&#8221;、「照度」のみのノイズを除去します。</li>



<li>Deep Space Smoothness: 詳細な構造の滑らかさを調整します。詳細な構造がぼやけ始めたならば、強めます。</li>
</ul>



<p class="wp-block-paragraph">次の2つは自動で適用されます。<br>StarNetで、恒星部分と星雲銀河部分に分けた、両方の画像にノイズ除去を行います。</p>



<ul class="wp-block-list">
<li>Use findstar: SirilのFindstarを指定します。恒星にノイズ除去が施されないようにします。</li>



<li>Auto Starless Detection:</li>
</ul>



<p class="wp-block-paragraph">プレビューの画像が気に入れば、&#8221;PROCESS&#8221;ボタンを押して、各設定を適用させます。</p>



<p class="wp-block-paragraph">このツールの特徴は、</p>



<ul class="wp-block-list">
<li>Stationary Wavelet Transform (SWT):定常ウェーブレット変換</li>



<li>Photometric Signal Gating: 測光信号ゲート処理は、背景と構造の相互干渉を防止します。</li>



<li>The Shadow Smoothness engine: 構造が検出されるとノイズ除去の強度を0にし、ハイライトのぼやけを防止します。</li>



<li>PSF-compensated Structural Guard: 「PSF補正構造保護機能」は、部分FWHMに比例し、大気散乱による光学的なフィラメント状の悪化を防止します。</li>



<li>Seeing-adaptive thresholding: 微細なディテールが存在しないぼやけた領域（視界不良）では処理強度を高め、シャープな領域では微細コントラストを保持する。</li>



<li>PSF-aware elliptical masking: PSF対応楕円マスクは、恒星の形状（角度、長短軸）から回転楕円マスクを生成します。コマ収差や追尾誤差に対応します。</li>



<li>Loupe UX: </li>



<li>Shadow Report: 処理完了時にノイズ低減量、SNR向上量、ペデスタル保存量を表示します。</li>
</ul>



<h2 class="wp-block-heading">VeraLux HyperMetric Stretch</h2>



<p class="wp-block-paragraph">2025年末と2026年始と、Siril開発版から離れていたら、あっと言う間に新しい機能やスクリプトが追加されました。追いつかなくちゃ。。。追いつけるかな。。。</p>



<p class="wp-block-paragraph">VeraLux — HyperMetric Stretch Python scriptに説明があります。</p>



<p class="wp-block-paragraph">輝度幾何学と色度ベクトルを分離し、処理を行う。</p>



<p class="wp-block-paragraph">概要<br>可視領域への遷移を管理しつつセンサーの忠実度を最大化するよう設計された、<br>精密な線形から非線形への伸張エンジン。</p>



<p class="wp-block-paragraph">ハイパーメトリック・ストレッチ（HMS）は基本原理に基づき動作する：標準的なヒストグラム変換はしばしばカラーチャンネル間の測光学的関係（色相シフト）を破壊し、高ダイナミックレンジデータをクリップする。HMSは輝度幾何学と色度ベクトルを分離することでこの問題を解決する。</p>



<p class="wp-block-paragraph">設計目標</p>



<ul class="wp-block-list">
<li>極端な伸張処理中も元のベクトルカラー比率を保持（トゥルーカラー）</li>



<li>特定ハードウェアに基づく輝度抽出の最適化（センサープロファイル）</li>



<li>高ダイナミックターゲット向けの数学的に「安全な」拡張を提供</li>



<li>数値処理と視覚フィードバックのギャップを埋める（ライブプレビュー）</li>



<li>カラーグリップ＆シャドウコンバージェンスによる制御可能なハイブリッドトーンマッピングを実現</li>
</ul>



<p class="wp-block-paragraph">VeraLux — HyperMetric Stretchは、<br>SPCC,及び GHS, それとベクターカラー保持からなります。</p>



<h2 class="wp-block-heading">VeraLux Vectra</h2>



<p class="wp-block-paragraph">非線形画像に用います。<br>GHSなどでヒストグラムをストレッチさせた後の画像に用います。</p>



<p class="wp-block-paragraph">ベクターカラーは、CIE LCh色空間を、円筒座標（極座標）で表現したものです。<br>L*（輝度）、C*（彩度）、h（色相）の要素から成ります。</p>




<a rel="noopener" target="_blank" href="https://www.facebook.com/groups/841870683930320/posts/1352075722909811" title="ブラウザーをアップデートしてください" class="blogcard-wrap external-blogcard-wrap a-wrap cf"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Fwww.facebook.com%2Fgroups%2F841870683930320%2Fposts%2F1352075722909811?w=160&#038;h=90" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="160" height="90" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">ブラウザーをアップデートしてください</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://www.facebook.com/groups/841870683930320/posts/1352075722909811" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">www.facebook.com</div></div></div></div></a>



<pre class="wp-block-code"><code>I am proud to announce the release of VeraLux Vectra, a new post-processing engine designed to fill the gap of "Selective Color Correction" within Siril. And a good non-linear companion for (linear) Alchemy.
I promise you it's the last of 2025...! 😂😬
We all know the struggle: you want to shift that SHO Green towards Teal, or pop the OIII Blue, but global saturation tools ruin your background or blow out your stars.
Vectra changes the game. It is not a standard saturation tool. It is a 6-Axis Vector Grading Engine operating in LCH Space (Lightness, Chroma, Hue).
Key Features:
6-Vector Control (RGB + CMY)
Independently manipulate Hue and Saturation for Red, Green, Blue, Cyan, Magenta, and Yellow.
Want the "Hubble Shift"? Rotate the Green vector towards Cyan.
Want Golden dust? Rotate Red towards Yellow.
Want deep OIII? Boost the Blue vector specifically.
Luminance Lock
Vectra mathematically decouples Color from Light. You can push saturation or rotate hues without altering the histogram structure or contrast you achieved during stretching.
Shadow Authority (The "Noise Gate")
Inherited from the Silentium engine, this feature uses robust statistics (MAD) to lock the background neutrality. You can boost the nebula colors aggressively, but your dark floor will remain clean and gray.
White Star Integrity
An energy-based protection system ensures that your bright white stars don't turn pink or teal when you shift the nebulosity colors.
Usage: Vectra is a Non-Linear tool. Use it after stretching (HMS/GHS) and structure enhancement, to finalize your color palette.
Clear skies and happy processing,
Riccardo</code></pre>



<h2 class="wp-block-heading">VeraLuxを用いて画像処理, NGC 2403</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/01/NGC_2403_HEUIB-II_1h00m_2026-02-15T19-12_800_recomposition.jpg" alt="" class="wp-image-2976" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/01/NGC_2403_HEUIB-II_1h00m_2026-02-15T19-12_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/01/NGC_2403_HEUIB-II_1h00m_2026-02-15T19-12_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/01/NGC_2403_HEUIB-II_1h00m_2026-02-15T19-12_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/01/NGC_2403_HEUIB-II_1h00m_2026-02-15T19-12_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: NGC 2403<br>Date: 2026-2-15<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -20degrees<br>Exposure: 180s x 20 (total 1h00m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux, StarNet2<br>Star Processing Python script: VeraLux Nox, Aberration Remover, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: <br>他の天体が昇ってくるまでの間に撮影しました。きりん座にある銀河です。</p>



<ul class="wp-block-list">
<li>Siril 1.5 画像処理
<ul class="wp-block-list">
<li>Background Extraction: VeraLux Nox</li>



<li>SPCC (Gaia Spectrum: G2V)</li>
</ul>
</li>



<li>別名でファイル保存
<ul class="wp-block-list">
<li>恒星処理
<ul class="wp-block-list">
<li>Desaturate Stars</li>



<li>Aberrations Remover (必要に応じて)</li>



<li>Cosmetic Correction (必要に応じて)</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only</li>



<li>StarNet Star Removal</li>
</ul>
</li>



<li>銀河星雲処理
<ul class="wp-block-list">
<li>Deconvolution: Cosmic Clarity Sharpening, Non-Stellar Only</li>



<li>Cosmetic Correction (必要に応じて)</li>



<li>StarNet Star Removal</li>



<li>VeraLux Silentium (ノイズ除去)</li>



<li>GHS (ストレッチ)</li>
</ul>
</li>
</ul>
</li>



<li>Star recomposition</li>
</ul>



<p class="wp-block-paragraph"></p>
]]></content:encoded>
					
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			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>NGC天体 NGC281, NGC2683, NGC6745, NGC253, NGC7741, NGC4236, NGC2403</title>
		<link>https://globe3.ddns.net/wp/new-general-catalogue-ngc281-2683-6745-253-7741-4236-ngc2403-2022-2025/</link>
					<comments>https://globe3.ddns.net/wp/new-general-catalogue-ngc281-2683-6745-253-7741-4236-ngc2403-2022-2025/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Fri, 15 Aug 2025 03:46:09 +0000</pubDate>
				<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[TS160]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=1772</guid>

					<description><![CDATA[2022年から2025年に撮影したNGC天体ピント合わせや光軸合わせが甘かったり、斜鏡支持金具やネジが干渉していたり、カメラ取り付けが傾いていたりと、調整途上の画像になっています。 その後、EAFを使用し、斜鏡支持金具を [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">2022年から2025年に撮影したNGC天体<br>ピント合わせや光軸合わせが甘かったり、斜鏡支持金具やネジが干渉していたり、カメラ取り付けが傾いていたりと、調整途上の画像になっています。</p>



<p class="wp-block-paragraph">その後、EAFを使用し、斜鏡支持金具を短く削り、斜鏡固定ネジは頭を削った平ネジに交換し、スパイダーに植毛紙を貼り、主鏡側にピンホールを使用しての光軸合わせをしています。</p>



<h2 class="wp-block-heading">NGC281</h2>



<p class="wp-block-paragraph">初めての山梨での撮影<br>標高が高い山の駐車場に夜は一人だけで、観望と撮影<br>夜空の背景が暗い事が、淡い光を見たり撮影するには大切だと実感しました。</p>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC281-IC1590_HEUIB-II_1h18m_2022-11-26T20-41_1400_recomposition-1200x817.jpg" alt="" class="wp-image-1868" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC281-IC1590_HEUIB-II_1h18m_2022-11-26T20-41_1400_recomposition-1200x817.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC281-IC1590_HEUIB-II_1h18m_2022-11-26T20-41_1400_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC281-IC1590_HEUIB-II_1h18m_2022-11-26T20-41_1400_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC281-IC1590_HEUIB-II_1h18m_2022-11-26T20-41_1400_recomposition-768x523.jpg 768w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC281-IC1590_HEUIB-II_1h18m_2022-11-26T20-41_1400_recomposition.jpg 1400w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC281, IC1590<br>Date: 2022-11-26, Yamanashi<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 26 (total 1h18m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, Cosmic Clarity Denoise, GraXpert, StarNet2</p>



<h2 class="wp-block-heading">NGC2683</h2>



<p class="wp-block-paragraph">やまねこ座にある渦巻き銀河です。<br>時間待ちに撮影しましたが、時間をかけてその姿を撮りたいです。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="545" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2683_HEUIB-II_30m_2023-02-25T23-10_800_recomposition.jpg" alt="" class="wp-image-1798" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2683_HEUIB-II_30m_2023-02-25T23-10_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2683_HEUIB-II_30m_2023-02-25T23-10_800_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2683_HEUIB-II_30m_2023-02-25T23-10_800_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2683_HEUIB-II_30m_2023-02-25T23-10_800_recomposition-768x523.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: NGC2683<br>Date: 2023-2-25, Yamanashi<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 10 (total 30m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, GraXpert, StarNet2</p>



<h2 class="wp-block-heading">NGC6745</h2>



<p class="wp-block-paragraph">こと座にある不規則銀河です。「しぎ」の様な鳥の横姿に見えます。3つの銀河が衝突してるそうです。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_6745_HEUIB-II_48m_2023-10-15T20-34_1200_recomposition.jpg" alt="" class="wp-image-1827" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_6745_HEUIB-II_48m_2023-10-15T20-34_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_6745_HEUIB-II_48m_2023-10-15T20-34_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_6745_HEUIB-II_48m_2023-10-15T20-34_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_6745_HEUIB-II_48m_2023-10-15T20-34_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC6745<br>Date: 2023-10-15 , Shizuoka<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 16 (total 48m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, GraXpert, StarNet2</p>



<h2 class="wp-block-heading">NGC253</h2>



<p class="wp-block-paragraph">初めての静岡での観望と撮影</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_253_HEUIB-II_1h24m_2023-10-15T23-21_1200_recomposition.jpg" alt="" class="wp-image-1829" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_253_HEUIB-II_1h24m_2023-10-15T23-21_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_253_HEUIB-II_1h24m_2023-10-15T23-21_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_253_HEUIB-II_1h24m_2023-10-15T23-21_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_253_HEUIB-II_1h24m_2023-10-15T23-21_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC253<br>Date: 2023-10-15 , Shizuoka<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 28 (total 1h24m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, GraXpert, StarNet2</p>



<h2 class="wp-block-heading">NGC7741</h2>



<p class="wp-block-paragraph">ペガサス座にある棒状渦巻銀河です。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_7741_HEUIB-II_2h00m_2023-10-21T23-31_1200_recomposition.jpg" alt="" class="wp-image-1833" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_7741_HEUIB-II_2h00m_2023-10-21T23-31_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_7741_HEUIB-II_2h00m_2023-10-21T23-31_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_7741_HEUIB-II_2h00m_2023-10-21T23-31_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_7741_HEUIB-II_2h00m_2023-10-21T23-31_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC7741<br>Date: 2023-10-15 , Yamanashi<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 40 (total 2h00m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, GraXpert, StarNet2</p>



<h2 class="wp-block-heading">NGC4236</h2>



<p class="wp-block-paragraph">りゅう座にある棒渦巻銀河です。<br>望遠鏡を設置後に雪が舞い、明け方は強風でした。<br>澄んだ空で観望には良かったのですが、シーイングは悪く、恒星は太く写っています。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_4236_HEUIB-II_27m_2023-11-19T02-18_1200_recomposition.jpg" alt="" class="wp-image-1836" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_4236_HEUIB-II_27m_2023-11-19T02-18_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_4236_HEUIB-II_27m_2023-11-19T02-18_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_4236_HEUIB-II_27m_2023-11-19T02-18_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_4236_HEUIB-II_27m_2023-11-19T02-18_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC4236<br>Date: 2023-11-18 , Yamanashi<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 9 (total 27m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, GraXpert, StarNet2</p>



<h2 class="wp-block-heading">NGC2403</h2>



<p class="wp-block-paragraph">きりん座にある渦巻です。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2403_HEUIB-II_1h57m_2024-03-10T21-50_1200_recomposition.jpg" alt="" class="wp-image-1838" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2403_HEUIB-II_1h57m_2024-03-10T21-50_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2403_HEUIB-II_1h57m_2024-03-10T21-50_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2403_HEUIB-II_1h57m_2024-03-10T21-50_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/08/NGC_2403_HEUIB-II_1h57m_2024-03-10T21-50_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC2403<br>Date: 2024-3-10 , Yamanashi<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 39 (total 1h57m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, Cosmic Clarity Sharpen, GraXpert, StarNet2</p>
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		<title>Deconvolution と NGC891, LEDA2194478</title>
		<link>https://globe3.ddns.net/wp/difference-deconvolution-process-graxpert-cosmic-clarity-sharpen-ngc891/</link>
					<comments>https://globe3.ddns.net/wp/difference-deconvolution-process-graxpert-cosmic-clarity-sharpen-ngc891/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Fri, 25 Jul 2025 05:45:42 +0000</pubDate>
				<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=1240</guid>

					<description><![CDATA[恒星にDeconvolutionを行う時は、いつも試行錯誤しています。GraXpertと, Cosmic Clarity Sharpen, 若しくはSirilそれぞれのDeconvolutionには、どの様な違いがあるの [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">恒星にDeconvolutionを行う時は、いつも試行錯誤しています。<br>GraXpertと, Cosmic Clarity Sharpen, 若しくはSiril<br>それぞれのDeconvolutionには、どの様な違いがあるのだろうか？</p>



<h2 class="wp-block-heading">NGC891</h2>



<p class="wp-block-paragraph">秋になると、毎年、見たり、撮影する銀河の一つ。<br>NGC891<br>アンドロメダ座にあり、すらっとした姿が美しいです。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition.jpg" alt="" class="wp-image-1249" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC891<br>Date: 2024-10-02<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -5degrees<br>Exposure: 180s x 32 (total 1h36m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, GraXpert 3.1.0rc2, Cosmic Clarity Sharpen</p>



<h2 class="wp-block-heading">NGC891 アノテーション</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="843" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_overlay.jpg" alt="" class="wp-image-1257" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_overlay.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_overlay-300x211.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_overlay-150x105.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_overlay-768x540.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="1410" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_table.jpg" alt="" class="wp-image-1259" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_table.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_table-300x353.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_table-150x176.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC_891_HEUIB-II_1h36m_2024-10-02T04-15_GraXDeconNegaSCNR_1200_recomposition_table-768x902.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">上の画像、[19]で囲まれた銀河が、LEDA2194478です。<br>恒星状に写る銀河、LEDA2194478をSiril, Cosmic Clarity Sharpen、GraXpert、それぞれがどの様にDeconvolutionを行っているかを、この部分を切り出して見てみます。</p>



<h2 class="wp-block-heading">Deconvolutionにどの様な違いがあるのだろうか？</h2>



<p class="wp-block-paragraph">点光源は、レンズや反射鏡などで観測、撮影すると空間的な広がりになります。<br>必ずぼけます。</p>



<p class="wp-block-paragraph">このぼけ、空間的広がりを、Point Sqread Function (PSF) と言います。</p>



<p class="wp-block-paragraph">NGC891の南に位置する、LEDA2194478 付近を切り出しました。<br>中央左下が、LEDA2194478 です。<br></p>



<div class="wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex">
<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow">
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="511" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle.jpg" alt="" class="wp-image-1280" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle.jpg 511w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle-300x227.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle-150x113.jpg 150w" sizes="(max-width: 511px) 100vw, 511px" /><figcaption class="wp-element-caption">Siril Deconvolution</figcaption></figure>
</div>



<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow">
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="509" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition.jpg" alt="" class="wp-image-1251" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition.jpg 509w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition-300x228.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition-150x114.jpg 150w" sizes="(max-width: 509px) 100vw, 509px" /><figcaption class="wp-element-caption">Cosmic Clarity Sharpen</figcaption></figure>
</div>



<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow">
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="510" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition.jpg" alt="" class="wp-image-1250" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition.jpg 510w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition-300x227.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition-150x114.jpg 150w" sizes="(max-width: 510px) 100vw, 510px" /><figcaption class="wp-element-caption">GraXpert deconvolution</figcaption></figure>
</div>
</div>



<div class="wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex">
<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow" style="flex-basis:50%">
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="510" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition.jpg" alt="" class="wp-image-1250" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition.jpg 510w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition-300x227.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition-150x114.jpg 150w" sizes="(max-width: 510px) 100vw, 510px" /><figcaption class="wp-element-caption">GraXpert deconvolutionを使用</figcaption></figure>
</div>



<div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow" style="flex-basis:50%">
<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="509" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition.jpg" alt="" class="wp-image-1251" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition.jpg 509w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition-300x228.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition-150x114.jpg 150w" sizes="(max-width: 509px) 100vw, 509px" /><figcaption class="wp-element-caption">Cosmic Clarity Sharpenを使用</figcaption></figure>
</div>
</div>



<h2 class="wp-block-heading">Deconvolution: Siril</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="511" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle.jpg" alt="" class="wp-image-1280" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle.jpg 511w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle-300x227.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC891_HEUIB-II_Decon-Crop_drizzle-150x113.jpg 150w" sizes="(max-width: 511px) 100vw, 511px" /><figcaption class="wp-element-caption">Siril Deconvolution</figcaption></figure>



<p class="wp-block-paragraph">Moffat<br>Richardson-Lucy Deconvolution を使用　反復 &#8220;30&#8221;<br>リギングが多く現れる</p>



<h2 class="wp-block-heading">Deconvolution: Cosmic Clarity Sharpen</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="510" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition.jpg" alt="" class="wp-image-1250" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition.jpg 510w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition-300x227.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_GraXDeconNegaSCNR-Clop_recomposition-150x114.jpg 150w" sizes="(max-width: 510px) 100vw, 510px" /></figure>



<h2 class="wp-block-heading">Deconvolution: GraXpert (Stellar)</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="509" height="386" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition.jpg" alt="" class="wp-image-1251" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition.jpg 509w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition-300x228.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC_891_HEUIB-II_Sharpen-Clop_recomposition-150x114.jpg 150w" sizes="(max-width: 509px) 100vw, 509px" /></figure>



<h2 class="wp-block-heading">それぞれの違い</h2>



<p class="wp-block-paragraph">Siril, Cosmic Clarity Sharpen、GraXpert, それぞれのソースから違いを考えて見たいと思うのですが、最新のGraXpertのソースが見られない？</p>



<p class="wp-block-paragraph">記述途中です。</p>
]]></content:encoded>
					
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			</item>
		<item>
		<title>Sirilに銀河名などを表示させます。</title>
		<link>https://globe3.ddns.net/wp/ngc7331-arp319-galaxy_annotations-script/</link>
					<comments>https://globe3.ddns.net/wp/ngc7331-arp319-galaxy_annotations-script/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Tue, 10 Jun 2025 02:49:01 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[アノテーション]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=1209</guid>

					<description><![CDATA[アノテーション: Galaxy Annotations Script Annotation: Steffen Schreiberさん, Patrick Wagnerさんが作った, Galaxy Annotations S [&#8230;]]]></description>
										<content:encoded><![CDATA[
<h2 class="wp-block-heading">アノテーション: Galaxy Annotations Script</h2>



<p class="wp-block-paragraph">Annotation: <br>Steffen Schreiberさん, Patrick Wagnerさんが作った, Galaxy Annotations Script Ver.1.0.1</p>



<p class="wp-block-paragraph">Galaxy Annotations Scriptを使います。</p>



<ul class="wp-block-list">
<li>Galaxy Annotations.pyを表示させます。 </li>



<li>Overlay: アノテーション表示の明るさ割合を決めます。</li>
</ul>



<p class="wp-block-paragraph">下がアノテーションさせた画像です。素晴らしい。<br>「光路距離」表示もあるといいな。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="843" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_overlay_1200.jpg" alt="" class="wp-image-1215" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_overlay_1200.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_overlay_1200-300x211.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_overlay_1200-150x105.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_overlay_1200-768x540.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">from astroquery.simbad import Simbad</p>
</blockquote>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">Creates galaxy annotations from a Simbad query with several catalogs.<br>Combines the original image with annotation overlays and a thumbnail table of the found galaxies.</p>
</blockquote>



<p class="wp-block-paragraph">天体データベース SIMBADから情報を取り込むようです。astroquery [py]<br></p>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">elif row.TYPE == &#8216;NGC&#8217;:<br>　　fontsize = 18</p>
</blockquote>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">&#8216;NGC&#8217;: CatalogEntry(&#8216;New General Catalogue&#8217;, &#8216;#9ae483&#8217;, True),</p>
</blockquote>



<p class="wp-block-paragraph">銀河別のフォントサイズや色は、好みに代えられます。</p>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">(c) Steffen Schreiber, Patrick Wagner 2025<br>SPDX-License-Identifier: GPL-3.0-or-later</p>
</blockquote>



<p class="wp-block-paragraph">&#8220;Table&#8221;は以下です。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="1215" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_table_1200.jpg" alt="" class="wp-image-1218" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_table_1200.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_table_1200-300x304.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_table_1200-150x152.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/annotated_NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_recomposition_table_1200-768x778.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">銀河カタログは、以下を使えます。<br>M: Messier Catalog<br>IC: Index Catalogue<br>NGC: New General Catalogue<br>MGC: Millennium Galaxy Catalogue<br>UGC: Uppsala General Catalogue<br>Mrk: Markarian galaxies<br>LEDA: Lyon-Meudon Extragalactic Database<br>Z: Zwicky Catalogue of galaxies and of clusters of galaxies<br>Gaia: Gaia catalogues<br>2MASX: Two Micron All Sky Survey, Extended source catalogue<br>SDSS: Sloan Digital Sky Survey<br>SDSSCGB: SDSS DR6 Compact Group Catalogue B<br>UGCA: Uppsala Selected non-UGC Galaxies<br>MASS: CatalogEntry<br>MFGC: CatalogEntry<br>2MFGC: 2MASS Flat Galaxy Catalog<br>FIRST: FIRST Survey Catalogs<br>2MASS: Two Micron All Sky Survey</p>



<h2 class="wp-block-heading">NGC7331, Arp319 画像処理</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="817" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_1200_recomposition.jpg" alt="" class="wp-image-1219" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_1200_recomposition-300x204.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/06/NGC7331-Arp319_HEUIB-II_3h24m_2024-10-01T22-33_GraXdenoise_1200_recomposition-768x523.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: NGC7331, Arp319<br>Date: 2024-10-01<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -5degrees<br>Exposure: 180s x 68 (total 3h24m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, GraXpert 3.1.0rc2, Cosmic Clarity SuiteVersion 6.3, StarNet</p>



<p class="wp-block-paragraph">恒星部分には、Cosmic Clarity Sharpen、星雲部分にはGraXpertを用いています。</p>
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			</item>
		<item>
		<title>NGC2841 おおぐま座の銀河</title>
		<link>https://globe3.ddns.net/wp/ngc2841-2025-ursa-major-siril-graxpert/</link>
					<comments>https://globe3.ddns.net/wp/ngc2841-2025-ursa-major-siril-graxpert/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Mon, 12 May 2025 08:28:53 +0000</pubDate>
				<category><![CDATA[NGC天体]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=699</guid>

					<description><![CDATA[最近になって、ようやく大熊の姿が夜空に、&#8221;なんとなく&#8221;描けるようになりました。都会では北斗七星しか見えないので、柄杓の形しか描けません。 おおぐま座の前足あたりにあるNGC2841は、見かけが10 [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">最近になって、ようやく大熊の姿が夜空に、&#8221;なんとなく&#8221;描けるようになりました。<br>都会では北斗七星しか見えないので、柄杓の形しか描けません。</p>



<p class="wp-block-paragraph">おおぐま座の前足あたりにあるNGC2841は、見かけが10等級<br>口径16cmの望遠鏡では、ぼんやりとした楕円の光芒が見られました。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="1200" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22T23-15_1h_Deconobject_Desatu_1200_recomposition.jpg" alt="" class="wp-image-1079" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22T23-15_1h_Deconobject_Desatu_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22T23-15_1h_Deconobject_Desatu_1200_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22T23-15_1h_Deconobject_Desatu_1200_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22T23-15_1h_Deconobject_Desatu_1200_recomposition-768x768.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<div class="wp-block-cocoon-blocks-info-box block-box primary-box">
<p class="wp-block-paragraph">上の画像は、恒星部分にはDeconvolution処理を行っていません。</p>
</div>



<p class="wp-block-paragraph">Date: 2025-02-22 T23-15<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees, EAF<br>Exposure: 180s x 20 (total 1h00m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, GraXpert 3.1.0rc2, StarNet, Galaxy Annotator v0.9.4</p>



<p class="wp-block-paragraph">以下は、画像処理の手順です。前処理が終えた画像に対して、それぞれを行いました。</p>



<ul class="wp-block-list">
<li>星雲画像
<ul class="wp-block-list">
<li>Object only decomvolution (GraXpert)</li>



<li>StarNet Star Removal (Siril)</li>



<li>wavelet (Siril)</li>



<li>Denoise image (GraXpert)</li>



<li>GHS (Siril)</li>



<li>彩度 (Siril)</li>
</ul>
</li>
</ul>



<ul class="wp-block-list">
<li>恒星画像
<ul class="wp-block-list">
<li>Desaturate Star (Siril), 数回行うことも　&#8221;Open Dynamic PSF daialog&#8221;を用います。</li>



<li>StarNet Star Removal (Siril)</li>
</ul>
</li>



<li>星雲画像と恒星画像を合成
<ul class="wp-block-list">
<li>Star Recomposition (Siril)
<ul class="wp-block-list">
<li>星雲画像には、GHS, Clip modeを適宜、変えます。</li>
</ul>
</li>
</ul>
</li>



<li>コントラスト制限適応ヒストグラム平坦化 (CLAHE : Contrast-Limited Adaptive Histogram Equalization)</li>
</ul>



<div class="wp-block-cocoon-blocks-info-box block-box primary-box">
<p class="wp-block-paragraph">次の画像は、星雲部部にGHSを使い、中心部分を控えました。<br>恒星部分には、Cosmic Clarity Suite を用いています。</p>
</div>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="1200" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22-T23-15_1h00m_ClaritySharp_1200_recomposition.jpg" alt="" class="wp-image-1082" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22-T23-15_1h00m_ClaritySharp_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22-T23-15_1h00m_ClaritySharp_1200_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22-T23-15_1h00m_ClaritySharp_1200_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841_HEUIB-II_2025-02-22-T23-15_1h00m_ClaritySharp_1200_recomposition-768x768.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Processing: Siril 1.4.0 beta3, Cosmic Clarity SuiteVersion ver6.3, StarNet</p>



<h2 class="wp-block-heading">NGC2841 アノテーション</h2>



<p class="wp-block-paragraph">3億から39億光年離れている銀河が映っている。<br>NGC2841は地球に近く4600万光年。周りには銀河が無いのかな？</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1000" height="1000" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841-anotation.jpg" alt="" class="wp-image-744" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841-anotation.jpg 1000w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841-anotation-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841-anotation-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/NGC2841-anotation-768x768.jpg 768w" sizes="(max-width: 1000px) 100vw, 1000px" /></figure>



<p class="wp-block-paragraph"><br></p>
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