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	<title>Arp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>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3369</guid>

					<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>何度でも Arp 214</title>
		<link>https://globe3.ddns.net/wp/arp214-3-nights/</link>
					<comments>https://globe3.ddns.net/wp/arp214-3-nights/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Thu, 23 Apr 2026 08:24:37 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3205</guid>

					<description><![CDATA[Arp214は、おおぐま座にある銀河たちです。NGC 3718 と パートナーのNGC 3729です。 NGC3718は、S字の様に大きく歪んでいます。近くにあるNGC3729と互いに重力が影響し合っています。その互いの [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">Arp214は、おおぐま座にある銀河たちです。NGC 3718 と パートナーのNGC 3729です。</p>



<p class="wp-block-paragraph">NGC3718は、S字の様に大きく歪んでいます。<br>近くにあるNGC3729と互いに重力が影響し合っています。その互いの距離は、15万光年だそうです。</p>



<p class="wp-block-paragraph">S字状のNGC3718は、極環状銀河になる経過途中の様です。<br>極環状銀河は、星やガス、塵が平らな銀河円盤の平面に対して、垂直な環状に周回している銀河です。</p>



<p class="wp-block-paragraph">NGC3718の下(南側)に小さな銀河がかたまって映っています。<br>HCG56（Hickson Compact Group:ヒクソン・コンパクト・グループ）です。</p>



<h2 class="wp-block-heading">2026年4月18日 Arp 214</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/Arp214_2026-04-18_1h27m_800_recomposition.jpg" alt="" class="wp-image-3241" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">2026年、4月18日<br>GPV気象予報モデルでは夜半頃から雲が広がる。他の予報も曇りがち。<br>でも、観望と撮影に行ってみよう。</p>



<p class="wp-block-paragraph">夜に機材設置を終えると、おおぐま座、北斗七星あたりは雲が無いので、Arp 214</p>



<p class="wp-block-paragraph">Name: Arp 214<br>Date: 2026-04-18 T21-45<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, -15deg 2026-04-18 -20degrees<br>Exposure: 180s x 30 (total 1h30m)</p>



<h2 class="wp-block-heading">2026年2月15日、2026年2月21日、2026年4月18日 Arp 214</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/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg" alt="" class="wp-image-3234" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">3日間の画像を合わせました。</p>



<p class="wp-block-paragraph">Name: Arp 104<br>Date: 2026-02-16 T01-17 , 2026-02-22 T01-32, 2026-04-18 T21-45<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, 2026-04-18 -20degrees<br>Exposure: 180s x 137 (total 6h51m)</p>



<h2 class="wp-block-heading">共通データ</h2>



<p class="wp-block-paragraph">Name: Arp 214<br>SQM: 21.64 mag/arcsec<sup>2</sup> (Yamanashi)<br>Optics: Takahashi TS-160, HEUIB-II<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, VeraLux, StarNet2, Cosmic Clarity, GraXpert<br>Star Processing Python script: VeraLux Nox, Aberration Remover, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: GraXpert, SyQon Prism</p>



<h2 class="wp-block-heading">露出時間での違いは？</h2>



<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 decoding="async" width="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition.jpg" alt="" class="wp-image-3241" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-04-18_1h27m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="has-text-align-center wp-block-paragraph">1時間30分間</p>
</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="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg" alt="" class="wp-image-3234" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="has-text-align-center wp-block-paragraph">6時間51分間</p>
</div>
</div>



<h2 class="wp-block-heading">GHS. Stretch factor, Local stretch intensityが強めでの違いは</h2>



<p class="wp-block-paragraph">6時間51分間露光画像を、GHS, Local stretch intensity (b)の数値を変えた処理しました。</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/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg" alt="" class="wp-image-3234" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_2026-02-15_02-21_04-18_6h51m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">(b) = 1 ~ 2</p>
</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="800" height="800" src="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_GHSb_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg" alt="" class="wp-image-3480" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_GHSb_2026-02-15_02-21_04-18_6h51m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_GHSb_2026-02-15_02-21_04-18_6h51m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_GHSb_2026-02-15_02-21_04-18_6h51m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/04/Arp214_GHSb_2026-02-15_02-21_04-18_6h51m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">(b) = 5 ~ 7</p>
</div>
</div>



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



<p class="wp-block-paragraph">Name: Arp 214<br>Processing: Siril 1.5 beta, VeraLux, StarNet2, Cosmic Clarity, GraXpert<br>Star Processing Python script: VeraLux Nox, Aberration Remover, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: GraXpert, SyQon Prism</p>



<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: 今回は未使用</li>



<li>Aberrations Remover: 必要に応じて</li>



<li>Deconvolution: Cosmic Clarity Sharpening, Stellar Only (Stel_amt=0.24, Nstel_str=3)</li>



<li>Starnet 2</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, Std)</li>



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



<li>Starnet 2 (SyQon Starlessは、HCGを削除してしまうため未使用)</li>



<li>ストレッチ（HT,GHS）</li>



<li>Wavelets Transformation</li>



<li>ノイズ除去 : SyQon Prism</li>



<li>色補正: Color saturation 65%, threshold 1.00</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>SyQon と Siril と Arp316, Arp244, IC790(NGC4410)</title>
		<link>https://globe3.ddns.net/wp/arp316-arp244-ic790-syqon-siril-astronomical-image/</link>
					<comments>https://globe3.ddns.net/wp/arp316-arp244-ic790-syqon-siril-astronomical-image/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Wed, 18 Mar 2026 03:01:32 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3102</guid>

					<description><![CDATA[ノイズ処理と、恒星及び星雲銀河を分離するには、SyQon Prismと SyQon Starless を使います。 Siril から SyQon Prismと Starless を使います。 Siril 1.5 beta [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">ノイズ処理と、恒星及び星雲銀河を分離するには、SyQon Prismと SyQon Starless を使います。</p>



<h2 class="wp-block-heading">Siril から SyQon Prismと Starless を使います。</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>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>



<h2 class="wp-block-heading">Arp 316</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/2026/03/Arp316_2026-03-14T21-01_HEUIB-II_3h12m_800_recomposition.jpg" alt="" class="wp-image-3108" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp316_2026-03-14T21-01_HEUIB-II_3h12m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp316_2026-03-14T21-01_HEUIB-II_3h12m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp316_2026-03-14T21-01_HEUIB-II_3h12m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp316_2026-03-14T21-01_HEUIB-II_3h12m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp 316<br>Date: 2026-03-14 T21-01<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 64 (total 3h12m)<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">Arp 244</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/2026/03/Arp244_HEUIB-II_1h54m_2026-03-15T00-51_800_recomposition.jpg" alt="" class="wp-image-3130" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp244_HEUIB-II_1h54m_2026-03-15T00-51_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp244_HEUIB-II_1h54m_2026-03-15T00-51_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp244_HEUIB-II_1h54m_2026-03-15T00-51_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp244_HEUIB-II_1h54m_2026-03-15T00-51_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp 244<br>Date: 2026-03-15 T00-51<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 x 24 (total 1h54m)<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">IC790(NGC4410)</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/2026/03/NGC4410-IC790_HEUIB-II_1h42m_2026-03-15T03-01_800_recomposition.jpg" alt="" class="wp-image-3133" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC4410-IC790_HEUIB-II_1h42m_2026-03-15T03-01_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC4410-IC790_HEUIB-II_1h42m_2026-03-15T03-01_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC4410-IC790_HEUIB-II_1h42m_2026-03-15T03-01_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC4410-IC790_HEUIB-II_1h42m_2026-03-15T03-01_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: IC790(NGC4410)<br>Date: 2026-03-15 T03-01<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 34 (total 1h42m)<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>



<p class="wp-block-paragraph"><a rel="noopener" target="_blank" href="https://simbad.cds.unistra.fr/simbad">https://simbad.cds.unistra.fr/simbad</a><br>ストラスブール天文データセンターによると、中央に映る4つの銀河は、<br><strong>RSCG 55</strong> &#8212; Compact Group of Galaxies</p>



<p class="wp-block-paragraph">左側（東側）が、<strong>NGC 4410D, Z70-79</strong>  &#8212; Emission-line galaxy<br>中央が、<strong>NGC 4410C, IC 790</strong> &#8212; LINER-type Active Galaxy Nucleus<br>右側2つの銀河が繋がっている様に見える、その（西側）が、<strong>NGC 4410B, Mrk 1325B</strong> &#8212; Radio Galaxy<br>右端が、<strong>NGC 4410</strong> &#8212; LINER-type Active Galaxy Nucleus</p>



<p class="wp-block-paragraph">さらに露出時間を重ねたい銀河たちです。</p>
]]></content:encoded>
					
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			</item>
		<item>
		<title>VeraLux と Siril と Arp104, Arp214, Arp283, NGC2841</title>
		<link>https://globe3.ddns.net/wp/arp104-214-283-ngc2841-3079-ngc-veralux-siril-astronomical-image/</link>
					<comments>https://globe3.ddns.net/wp/arp104-214-283-ngc2841-3079-ngc-veralux-siril-astronomical-image/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Sun, 01 Mar 2026 04:21:16 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[Siril]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=3006</guid>

					<description><![CDATA[Siril 1.5 betaを使って画像処理します。工程は次の様に行います。 Arp104 2026年2月22日は、とても気流が安定していました。背景が暗いことと同じように、安定した気流の大切さが体験できました。あれ、何 [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">Siril 1.5 betaを使って画像処理します。工程は次の様に行います。</p>



<ul class="wp-block-list">
<li>Siril 画像処理
<ul 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</li>



<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>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. 若しくは GraXpert</li>



<li>Cosmetic Correction:必要に応じて</li>



<li>ノイズ除去 : VeraLux Silentium (非AI)</li>



<li>StarNet Star Removal</li>



<li>ストレッチ（GHS）</li>



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



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



<h2 class="wp-block-heading">Arp104</h2>



<p class="wp-block-paragraph">2026年2月22日は、とても気流が安定していました。<br>背景が暗いことと同じように、安定した気流の大切さが体験できました。<br>あれ、何で-20℃に冷却しなかったのだろう？</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/2026/03/Arp104_2026-02-16_22_HEUIB-II_5h27m_800_recomposition.jpg" alt="" class="wp-image-3037" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp104_2026-02-16_22_HEUIB-II_5h27m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp104_2026-02-16_22_HEUIB-II_5h27m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp104_2026-02-16_22_HEUIB-II_5h27m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp104_2026-02-16_22_HEUIB-II_5h27m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp 104<br>Date: 2026-02-16 T01-17 , 2026-02-22 T01-32<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 109 (total 5h27m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, StarNet2, Cosmic Clarity, GraXpert<br>Star Processing Python script: VeraLux Nox, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: GraXpert, VeraLux Silentium</p>



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



<h2 class="wp-block-heading">Arp 214</h2>



<p class="wp-block-paragraph">おおくま座、北斗七星の底辺りにArp214は位置しています。<br>気流が落ち着いていたので、160mmで捉えられる部分を表現できたと思っています。</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/2026/03/Arp214_2026-02-15-21_HEUIB-II-5h24m_800_recomposition.jpg" alt="" class="wp-image-3043" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp214_2026-02-15-21_HEUIB-II-5h24m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp214_2026-02-15-21_HEUIB-II-5h24m_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp214_2026-02-15-21_HEUIB-II-5h24m_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp214_2026-02-15-21_HEUIB-II-5h24m_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp 214<br>Date: 2026-02-15 T22-15, 2026-02-21 T21-37<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 108 (total 5h24m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library, PHD2<br>Processing: Siril 1.5 beta, StarNet2, Cosmic Clarity, GraXpert<br>Star Processing Python script: VeraLux Nox, Aberration Remover, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: GraXpert, VeraLux Silentium</p>



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



<h2 class="wp-block-heading">NGC 2841</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/2026/03/NGC2841_HEUIB-II_1h30m_2026-02-21-T19-15_800_recomposition.jpg" alt="" class="wp-image-3052" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC2841_HEUIB-II_1h30m_2026-02-21-T19-15_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC2841_HEUIB-II_1h30m_2026-02-21-T19-15_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC2841_HEUIB-II_1h30m_2026-02-21-T19-15_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/NGC2841_HEUIB-II_1h30m_2026-02-21-T19-15_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">大熊座の前足辺りにNGC2841は、位置しています。</p>



<p class="wp-block-paragraph">Name: NGC 2841<br>Date: 2026-02-21 T19-15<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, -15degrees<br>Exposure: 180s x 30 (total 1h30m)<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<br>Galaxy Processing Python script: Cosmic Clarity Sharpen, VeraLux Silentium</p>



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



<h2 class="wp-block-heading">Arp 283</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/2026/03/Arp283_2026-02-15_HEUIB-II-6h03m_GHS_800_recomposition.jpg" alt="" class="wp-image-3094" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp283_2026-02-15_HEUIB-II-6h03m_GHS_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp283_2026-02-15_HEUIB-II-6h03m_GHS_800_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp283_2026-02-15_HEUIB-II-6h03m_GHS_800_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2026/03/Arp283_2026-02-15_HEUIB-II-6h03m_GHS_800_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Name: Arp 283 (NGC2798, NGC2799)<br>Date: 2026-02-15 T22-15, 2026-02-21 T21-37<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 108 (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, Cosmic Clarity Sharpen<br>Galaxy Processing Python script: Cosmic Clarity Sharpen, VeraLux Silentium</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="320" height="180" /></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=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></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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			</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>
]]></content:encoded>
					
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			</item>
		<item>
		<title>Arp 273 薔薇は宇宙に</title>
		<link>https://globe3.ddns.net/wp/arp-273-roses-in-the-cosmos/</link>
					<comments>https://globe3.ddns.net/wp/arp-273-roses-in-the-cosmos/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Wed, 28 May 2025 02:59:50 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=1030</guid>

					<description><![CDATA[とても素敵な銀河の一つ、Arp273アンドロメダ座にあります。 Name: Arp 273Date: 2022-11-26T23-15, 2023-10-22T01-41Optics: Takahashi TS-160, [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">とても素敵な銀河の一つ、Arp273<br>アンドロメダ座にあります。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1200" height="812" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_1200_recomposition.jpg" alt="" class="wp-image-1043" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_1200_recomposition.jpg 1200w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_1200_recomposition-300x203.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_1200_recomposition-150x102.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_1200_recomposition-768x520.jpg 768w" sizes="(max-width: 1200px) 100vw, 1200px" /></figure>



<p class="wp-block-paragraph">Name: Arp 273<br>Date: 2022-11-26T23-15, 2023-10-22T01-41<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI294MC Pro, gain 120, offset 5, -15degrees<br>Exposure: 180s x 104 (total 5h12m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta3, GraXpert 3.1.0rc2, Galaxy Annotator v0.9.4</p>



<p class="wp-block-paragraph">星雲部分画像</p>



<ul class="wp-block-list">
<li>OSC_Bayerdrizzle, 勾配補正(BE), 色補正(SPCC)</li>



<li>Desaurate Stars</li>



<li>SCNR</li>



<li>Deconvolution, Stellar : GraXpert</li>



<li>StarNet</li>
</ul>



<p class="wp-block-paragraph">恒星部分画像</p>



<ul class="wp-block-list">
<li>OSC_Bayerdrizzle, 勾配補正(BE), 色補正(SPCC)</li>



<li>SCNR, Nega SCNR</li>



<li>Deconvolution, Objects : GraXpert</li>



<li>StarNet</li>



<li>定常ウェーブレット変換</li>



<li>Denoising : GraXpert</li>



<li>ストレッチ : GHS, BP</li>



<li>彩度</li>
</ul>



<p class="wp-block-paragraph">星雲部分画像と構成部分画像を合成</p>



<ul class="wp-block-list">
<li>恒星画像
<ul class="wp-block-list">
<li>Clping mode 恒星を確認しながら入れ替える。</li>
</ul>
</li>
</ul>



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



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="541" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-annotation_800.jpg" alt="" class="wp-image-1048" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-annotation_800.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-annotation_800-300x203.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-annotation_800-150x101.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-annotation_800-768x519.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<h2 class="wp-block-heading">Arp 273</h2>



<p class="wp-block-paragraph">ストラスブール天文データセンター: <a rel="noopener" target="_blank" href="https://cds.unistra.fr/">https://cds.unistra.fr/</a><br>SIMBAD Astronomical Database &#8211; CDS (Strasbourg): <a rel="noopener" target="_blank" href="https://simbad.cds.unistra.fr/simbad/">https://simbad.cds.unistra.fr/simbad/</a></p>



<p class="wp-block-paragraph">SINMADで &#8220;Arp273&#8221; を <a rel="noopener" target="_blank" href="https://simbad.cds.unistra.fr/simbad/sim-fbasic">basic search</a> 、大きく見える銀河は、&#8221;UGC 1810&#8243;と登録されてます。<br>小さく見える銀河は、&#8221;UGC 1813&#8243;</p>



<p class="wp-block-paragraph">UGC 1810は、UGC 1813の重力に引っ張られて、独特な形に変化しています。<br>大きめのUGC1810の中心を少し外れた部分を、UGC1813が通り抜けたようです。<br>銀河が銀河を通り抜けたことが、美しい薔薇の様な姿を作ったようです。</p>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">

<a rel="noopener" target="_blank" href="https://svs.gsfc.nasa.gov/30857" title="NASA Scientific Visualization Studio | Interacting Galaxies Arp 273 from Hubble" 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%2Fsvs.gsfc.nasa.gov%2F30857?w=320&#038;h=180" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">NASA Scientific Visualization Studio | Interacting Galaxies Arp 273 from Hubble</div><div class="blogcard-snippet external-blogcard-snippet">The galaxies of Arp 273 have recently interacted via gravity to make a shape resembling a cosmic rose. || arp273-hst-319...</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://svs.gsfc.nasa.gov/30857" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">svs.gsfc.nasa.gov</div></div></div></div></a>
</blockquote>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="551" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_800_recomposition.jpg" alt="" class="wp-image-1086" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_800_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_800_recomposition-300x207.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_800_recomposition-150x103.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/05/Arp273-HEUIB-II_2022-11-262023-10-22_5h12m_800_recomposition-768x529.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
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			</item>
		<item>
		<title>Arp299 (NGC3690), Arp296 (PGC35345, PGC2580146)</title>
		<link>https://globe3.ddns.net/wp/arp299-ngc3690-graxpert-deconvcolution-siril/</link>
					<comments>https://globe3.ddns.net/wp/arp299-ngc3690-graxpert-deconvcolution-siril/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Wed, 30 Apr 2025 14:42:09 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[画像処理]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=526</guid>

					<description><![CDATA[おおぐま座にあるNGC3690は、二つの銀河が衝突しています。地球からは、約1億5000万光年離れています。過去15年ほどで、銀河系外縁部で6つの超新星が現れています。 NGC3690から北方向 (画像上) に、淡く伸び [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">おおぐま座にあるNGC3690は、二つの銀河が衝突しています。<br>地球からは、約1億5000万光年離れています。<br>過去15年ほどで、銀河系外縁部で6つの超新星が現れています。</p>



<p class="wp-block-paragraph">NGC3690から北方向 (画像上) に、淡く伸びた細い紐状の構造を強調した画像処理をしました。</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/2025/04/Arp299_NGC3690-grax-object-decon_recomposition.jpg" alt="" class="wp-image-527" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690-grax-object-decon_recomposition.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690-grax-object-decon_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690-grax-object-decon_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690-grax-object-decon_recomposition-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Date: 2025-04-26<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees, EAF<br>Exposure: 180s x 53 (total 2h39m)<br>Mount: 160jp, Althiba3, off-axis guide, INDI Library<br>Processing: Siril 1.4.0 beta2, GraXpert 3.1.0rc2, Cosmic Clarity Sharpen, Starnet2</p>



<p class="wp-block-paragraph">当日は北風が強く、ガイドが安定しない撮影でした。恒星が太っています。<br>と言っても、自分は真夜中に「うわ～～」、「すごい」と叫んで、観望を楽しんでいました。</p>



<h2 class="wp-block-heading">アノテーション</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/2025/04/Arp299_NGC3690_annotation.jpg" alt="" class="wp-image-540" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690_annotation.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690_annotation-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690_annotation-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/Arp299_NGC3690_annotation-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Processing: Galaxy Annotator v0.9.4</p>



<p class="wp-block-paragraph">中央右側にある、PGC35345と、PGC2580146は、Arp296だそうです。<br>こちらも潮汐相互作用と思える、二つの銀河を結ぶような細い紐状の構造が見られます。</p>



<p class="wp-block-paragraph">40億光年先の銀河からの光も届いたようです。PGC3409101 と PGC3409096がそれです。<br></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/2025/04/NGC_3690_HEUIB-II_2h39m_2025-04-26T21-16_1000_recomposition.jpg" alt="" class="wp-image-1734" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_3690_HEUIB-II_2h39m_2025-04-26T21-16_1000_recomposition.jpg 1000w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_3690_HEUIB-II_2h39m_2025-04-26T21-16_1000_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_3690_HEUIB-II_2h39m_2025-04-26T21-16_1000_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_3690_HEUIB-II_2h39m_2025-04-26T21-16_1000_recomposition-768x768.jpg 768w" sizes="(max-width: 1000px) 100vw, 1000px" /></figure>
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		<title>NGC2276, NGC2300 (Arp 114) + NGC1569</title>
		<link>https://globe3.ddns.net/wp/ngc2276-ngc2300-2025-02-22/</link>
					<comments>https://globe3.ddns.net/wp/ngc2276-ngc2300-2025-02-22/#respond</comments>
		
		<dc:creator><![CDATA[minmin]]></dc:creator>
		<pubDate>Wed, 09 Apr 2025 09:59:04 +0000</pubDate>
				<category><![CDATA[Arp天体]]></category>
		<category><![CDATA[アノテーション]]></category>
		<guid isPermaLink="false">https://globe3.ddns.net/wp/?p=213</guid>

					<description><![CDATA[NGC2276は、エンゼルフィッシュを連想させます。下の画像では、右へ泳ぐ様に見えませんか？ ケフェウス座にある２つの銀河NGC 2276 は、NGC 2300に重力で引き寄せられています。 隣の銀河に形をゆがめられる  [&#8230;]]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">NGC2276は、エンゼルフィッシュを連想させます。下の画像では、右へ泳ぐ様に見えませんか？</p>



<p class="wp-block-paragraph">ケフェウス座にある２つの銀河<br>NGC 2276 は、NGC 2300に重力で引き寄せられています。</p>



<h2 class="wp-block-heading">隣の銀河に形をゆがめられる NGC2276</h2>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1100" height="1100" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_HEUIB-II-1h_2025-02-22T21-50_Object-Desatu_satu_recomposition_1100.jpg" alt="" class="wp-image-657" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_HEUIB-II-1h_2025-02-22T21-50_Object-Desatu_satu_recomposition_1100.jpg 1100w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_HEUIB-II-1h_2025-02-22T21-50_Object-Desatu_satu_recomposition_1100-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_HEUIB-II-1h_2025-02-22T21-50_Object-Desatu_satu_recomposition_1100-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_HEUIB-II-1h_2025-02-22T21-50_Object-Desatu_satu_recomposition_1100-768x768.jpg 768w" sizes="(max-width: 1100px) 100vw, 1100px" /></figure>



<p class="wp-block-paragraph">Date: 2025-02-22<br>Optics: Takahashi TS-160, HEUIB-II<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 20 (total 1h00m)<br>Mount: Takahashi 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>



<h2 class="wp-block-heading">Arp 114 アノテーション</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/2025/04/NGC_2276-2300_annotation.jpg" alt="" class="wp-image-219" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_annotation.jpg 800w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_annotation-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_annotation-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC_2276-2300_annotation-768x768.jpg 768w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">ケフェウス座にあるこの２つの銀河は、地球から1億2000万光年の距離にあります。<br><a rel="noopener" target="_blank" href="https://science.nasa.gov/missions/hubble/hubble-views-lopsided-galaxy-ngc-2276/">https://science.nasa.gov/missions/hubble/hubble-views-lopsided-galaxy-ngc-2276/</a></p>
</blockquote>



<p class="wp-block-paragraph">このような、面白く楽しい形の銀河が、私は好きです。</p>



<h2 class="wp-block-heading">星が爆発的に生まれるNGC1569</h2>



<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p class="wp-block-paragraph">NGC 1569とIC 342などのグループを結びつけている構造と相互作用を探すことで、NGC 1569に見られるスターバーストと特異な動きを説明することである。<br>NGC 1569 と同じ位置と速度を共有する、直径半度の大きな H I 雲が検出された。<br>NGC1569から近くの矮小銀河UGCA92に向かってV字型に伸びている銀河間フィラメントを思わせる2つの長い構造が発見された。これらのフィラメント構造は、NGC1569で77 kpcに相当する約1.°5にわたって伸びている。<br>0.°5のH I雲とフィラメント構造は、前景の天の川かもしれないが、NGC1569とUGCA92の相互作用の残骸の可能性を示唆している。また、UGCA86とIC342からそれぞれ2本の潮汐尾が伸びている。これらの構造は、連続した H I ブリッジの一部である可能性があるが、そうであるかどうかを判断するには、さらに多くのデータが必要である<br><a rel="noopener" target="_blank" href="https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2013AJ....145..146J">https://simbad.cds.unistra.fr/simbad/sim-ref?bibcode=2013AJ&#8230;.145..146J</a></p>
</blockquote>



<p class="wp-block-paragraph">NGC1569 から IC342へと繋がる構造があるかもしれない。</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="1100" height="1100" src="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC1569_HEUIB-II_1h00m_2025-02-22T20-34_1100_recomposition.jpg" alt="" class="wp-image-1138" srcset="https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC1569_HEUIB-II_1h00m_2025-02-22T20-34_1100_recomposition.jpg 1100w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC1569_HEUIB-II_1h00m_2025-02-22T20-34_1100_recomposition-300x300.jpg 300w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC1569_HEUIB-II_1h00m_2025-02-22T20-34_1100_recomposition-150x150.jpg 150w, https://globe3.ddns.net/wp/wp-content/uploads/2025/04/NGC1569_HEUIB-II_1h00m_2025-02-22T20-34_1100_recomposition-768x768.jpg 768w" sizes="(max-width: 1100px) 100vw, 1100px" /></figure>



<p class="wp-block-paragraph">Date: 2025-02-22<br>Optics: Takahashi TS-160, HEUIB-II, EAF<br>Camera: ASI533MC Pro, gain 100, offset 20, -15degrees<br>Exposure: 180s x 20 (total 1h00m)<br>Mount: Takahashi 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">この夜はとても冷え込み、-15℃程になりました。<br>とても温かい味噌煮込みうどんと、おにぎりを頂きました。<br>望遠鏡とカメラの調整に凍えきった体と心に、染み込みました。</p>



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