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				<title><![CDATA[ScienceDownEast - ScienceDownEast Astrophotography  - M27 The Dumbbell Nebula (Latest images)]]></title>
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				<description><![CDATA[From a Curmudgeon In Training, these represent fledging attempts at Astrophotography. Hopefully these images will improve as I figure out what I'm doing.Videos related to some of these images may be found at: ScienceDownEast videos on Vimeo ]]></description>
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				<pubDate>Tue, 14 Apr 2026 15:44:33 -0300</pubDate>
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							<title><![CDATA[M27 Dumbbell Nebula 10x1200 (M27 The Dumbbell Nebula)]]></title>
							<link>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula-10x1200-copy.jpg</link>
							<description><![CDATA[<a title="M27 Dumbbell Nebula 10x1200 in M27 The Dumbbell Nebula" href="https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&image=M27-Dumbbell-Nebula-10x1200-copy.jpg"><img src="https://sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/M27&amp;i=M27-Dumbbell-Nebula-10x1200-copy.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="M27 Dumbbell Nebula 10x1200" /></a><i><b>Click on the image to view it at full resolution,<br>then click again for actual size.</b></i>
<p></p>
<p>
The <b>Dumbbell Nebula</b> (Messier 27, <a href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC+6853" target="_blank"><b>NGC 6853</b></a>) is a bright, nearby planetary nebula in the small constellation Vulpecula. 
It is the expanding, ionized shell of gas cast off by a Sun-like star near the end of its life; a hot <i>white dwarf</i> remnant at the center illuminates the nebula, with strong O&nbsp;III and Hα emission producing its characteristic “dumbbell” or apple-core shape. 
Discovered by Charles Messier in 1764, M27 is among the most rewarding planetary nebulae for visual observers and imagers.
</p>
<p>
At a distance of roughly <i>~1,300–1,400 light-years</i> 
(<a href="https://en.wikipedia.org/wiki/Dumbbell_Nebula" target="_blank">M27 overview</a>), 
the main nebular structure spans about <i>8′ × 5.6′</i> on the sky, corresponding to a physical size of roughly <i>2.5–3 light-years</i>. 
In the eyepiece it shows best at moderate magnification; an O&nbsp;III or UHC filter greatly enhances contrast, revealing the bright lobes and fainter outer halo. 
Look for M27 in Vulpecula, roughly midway between the stars γ and 14&nbsp;Vul, just north of the Summer Triangle.
</p>
<p>Total image time was 3 hours and 20 minutes.</p>
<table>
  <tr><td>Moon Phase</td><td><b>Waxing Gibbous 15% - 90%</b></td></tr>
  <tr><td>Exposure</td><td>10 x 20 min</td></tr>
  <tr><td>Gain</td><td>100</td></tr>
  <tr><td>Camera</td><td>ToupTek ATR2600C [6224 × 4168]</td></tr>
  <tr><td>Optics</td><td>120mm Sky-Watcher Esprit on a Proxisky UMi20S Strain Wave mount</td></tr>
  <tr><td>Guiding</td><td>ToupTek GPM462M using PHD2 with a 400mm guide scope. Average 15-min sub GuideRMS ranged from 0.53 to 0.74 using 0.5s exposures.</td></tr>
  <tr><td>Controller</td><td>KStars on MeLe Quieter 4C</td></tr>
  <tr><td>Filter</td><td>Triad Quad Ultra (strong O&nbsp;III/Hα response for planetary nebulae)</td></tr>
  <tr><td>Location</td><td>St. Croix Observatory and Lower Sackville, Nova Scotia.</td></tr>
  <tr><td>Date</td><td>2025-11-02</td></tr>
  <tr><td>Processing</td><td>Processed in PixInsight.</td></tr>
  <tr>
    <td>PixInsight Processing</td>
    <td>
      <table>
        <tr><td>WeightedBatchPreprocessing Script</td></tr>
        <tr><td>BlurXTerminator</td></tr>
        <tr><td>GraXpert</td></tr>
        <tr><td>NoiseXTerminator</td></tr>
        <tr><td>StarXTerminator</td></tr>
        <tr><td>Generalized Hyperbolic Stretch on both the stars and starless images</td></tr>
          <tr><td>HDRMultiScaleTransform on the Starless image</td></tr>
      <tr><td>PixelMath to recombine the images</td></tr>
        <tr><td>CurveTransformation</td></tr>
      </table>
    </td>
  </tr>
</table>
<p><br />Date: November 04, 2025 ]]></description>
															<category><![CDATA[M27 The Dumbbell Nebula]]></category>
															<guid>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula-10x1200-copy.jpg</guid>
							<pubDate>Tue, 04 Nov 2025 14:47:08 -0400</pubDate>
						</item>
												<item>
							<title><![CDATA[M27 Dumbbell Nebula Processed version 2 (M27 The Dumbbell Nebula)]]></title>
							<link>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula-2-copy.jpg</link>
							<description><![CDATA[<a title="M27 Dumbbell Nebula Processed version 2 in M27 The Dumbbell Nebula" href="https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&image=M27-Dumbbell-Nebula-2-copy.jpg"><img src="https://sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/M27&amp;i=M27-Dumbbell-Nebula-2-copy.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="M27 Dumbbell Nebula Processed version 2" /></a><i><b>Click on the image to view it at full resolution,<br>then click again for actual size.</b></i>
<p></p>
<p>
The <b>Dumbbell Nebula</b> (Messier 27, <a href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC+6853" target="_blank"><b>NGC 6853</b></a>) is a bright, nearby planetary nebula in the small constellation Vulpecula. 
It is the expanding, ionized shell of gas cast off by a Sun-like star near the end of its life; a hot <i>white dwarf</i> remnant at the center illuminates the nebula, with strong O&nbsp;III and Hα emission producing its characteristic “dumbbell” or apple-core shape. 
Discovered by Charles Messier in 1764, M27 is among the most rewarding planetary nebulae for visual observers and imagers.
</p>
<p>
At a distance of roughly <i>~1,300–1,400 light-years</i> 
(<a href="https://en.wikipedia.org/wiki/Dumbbell_Nebula" target="_blank">M27 overview</a>), 
the main nebular structure spans about <i>8′ × 5.6′</i> on the sky, corresponding to a physical size of roughly <i>2.5–3 light-years</i>. 
In the eyepiece it shows best at moderate magnification; an O&nbsp;III or UHC filter greatly enhances contrast, revealing the bright lobes and fainter outer halo. 
Look for M27 in Vulpecula, roughly midway between the stars γ and 14&nbsp;Vul, just north of the Summer Triangle.
</p>
<p>Total image time was 140 minutes.</p>
<table>
  <tr><td>Moon Phase</td><td><b>Waxing Gibbous 15%</b></td></tr>
  <tr><td>Exposure</td><td>7 x 20 min</td></tr>
  <tr><td>Gain</td><td>100</td></tr>
  <tr><td>Camera</td><td>ToupTek ATR2600C [6224 × 4168]</td></tr>
  <tr><td>Optics</td><td>120mm Sky-Watcher Esprit on a Proxisky UMi20S Strain Wave mount</td></tr>
  <tr><td>Guiding</td><td>ToupTek GPM462M using PHD2 with a 400mm guide scope. Average 15-min sub GuideRMS ranged from 0.53 to 0.74 using 0.5s exposures.</td></tr>
  <tr><td>Controller</td><td>KStars on MeLe Quieter 4C</td></tr>
  <tr><td>Filter</td><td>Triad Quad Ultra (strong O&nbsp;III/Hα response for planetary nebulae)</td></tr>
  <tr><td>Location</td><td>St. Croix Observatory, Nova Scotia.</td></tr>
  <tr><td>Date</td><td>2025-10-24</td></tr>
  <tr><td>Processing</td><td>Processed in PixInsight.</td></tr>
  <tr>
    <td>PixInsight Processing</td>
    <td>
      <table>
        <tr><td>WeightedBatchPreprocessing Script</td></tr>
        <tr><td>BlurXTerminator</td></tr>
        <tr><td>GraXpert</td></tr>
        <tr><td>NoiseXTerminator</td></tr>
        <tr><td>StarXTerminator</td></tr>
        <tr><td>Generalized Hyperbolic Stretch on both the stars and starless images</td></tr>
        <tr><td>PixelMath to recombine the images</td></tr>
        <tr><td>CurveTransformation</td></tr>
      </table>
    </td>
  </tr>
</table>
<p><br />Date: October 26, 2025 ]]></description>
															<category><![CDATA[M27 The Dumbbell Nebula]]></category>
															<guid>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula-2-copy.jpg</guid>
							<pubDate>Sun, 26 Oct 2025 12:50:08 -0300</pubDate>
						</item>
												<item>
							<title><![CDATA[M27 Dumbbell Nebula (M27 The Dumbbell Nebula)]]></title>
							<link>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula.jpg</link>
							<description><![CDATA[<a title="M27 Dumbbell Nebula in M27 The Dumbbell Nebula" href="https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&image=M27-Dumbbell-Nebula.jpg"><img src="https://sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/M27&amp;i=M27-Dumbbell-Nebula.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="M27 Dumbbell Nebula" /></a><i><b>Click on the image to view it at full resolution,<br>then click again for actual size.</b></i>
<p></p>
<p>
The <b>Dumbbell Nebula</b> (Messier 27, <a href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC+6853" target="_blank"><b>NGC 6853</b></a>) is a bright, nearby planetary nebula in the small constellation Vulpecula. 
It is the expanding, ionized shell of gas cast off by a Sun-like star near the end of its life; a hot <i>white dwarf</i> remnant at the center illuminates the nebula, with strong O&nbsp;III and Hα emission producing its characteristic “dumbbell” or apple-core shape. 
Discovered by Charles Messier in 1764, M27 is among the most rewarding planetary nebulae for visual observers and imagers.
</p>
<p>
At a distance of roughly <i>~1,300–1,400 light-years</i> 
(<a href="https://en.wikipedia.org/wiki/Dumbbell_Nebula" target="_blank">M27 overview</a>), 
the main nebular structure spans about <i>8′ × 5.6′</i> on the sky, corresponding to a physical size of roughly <i>2.5–3 light-years</i>. 
In the eyepiece it shows best at moderate magnification; an O&nbsp;III or UHC filter greatly enhances contrast, revealing the bright lobes and fainter outer halo. 
Look for M27 in Vulpecula, roughly midway between the stars γ and 14&nbsp;Vul, just north of the Summer Triangle.
</p>
<p>Total image time was 140 minutes.</p>
<table>
  <tr><td>Moon Phase</td><td><b>Waxing Gibbous 15%</b></td></tr>
  <tr><td>Exposure</td><td>7 x 20 min</td></tr>
  <tr><td>Gain</td><td>100</td></tr>
  <tr><td>Camera</td><td>ToupTek ATR2600C [6224 × 4168]</td></tr>
  <tr><td>Optics</td><td>120mm Sky-Watcher Esprit on a Proxisky UMi20S Strain Wave mount</td></tr>
  <tr><td>Guiding</td><td>ToupTek GPM462M using PHD2 with a 400mm guide scope. Average 15-min sub GuideRMS ranged from 0.53 to 0.74 using 0.5s exposures.</td></tr>
  <tr><td>Controller</td><td>KStars on MeLe Quieter 4C</td></tr>
  <tr><td>Filter</td><td>Triad Quad Ultra (strong O&nbsp;III/Hα response for planetary nebulae)</td></tr>
  <tr><td>Location</td><td>St. Croix Observatory, Nova Scotia.</td></tr>
  <tr><td>Date</td><td>2025-10-24</td></tr>
  <tr><td>Processing</td><td>Processed in PixInsight.</td></tr>
  <tr>
    <td>PixInsight Processing</td>
    <td>
      <table>
        <tr><td>WeightedBatchPreprocessing Script</td></tr>
        <tr><td>BlurXTerminator</td></tr>
        <tr><td>GraXpert</td></tr>
        <tr><td>NoiseXTerminator</td></tr>
        <tr><td>StarXTerminator</td></tr>
        <tr><td>Generalized Hyperbolic Stretch on both the stars and starless images</td></tr>
        <tr><td>PixelMath to recombine the images</td></tr>
        <tr><td>CurveTransformation</td></tr>
      </table>
    </td>
  </tr>
</table>
<p><br />Date: October 26, 2025 ]]></description>
															<category><![CDATA[M27 The Dumbbell Nebula]]></category>
															<guid>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula.jpg</guid>
							<pubDate>Sun, 26 Oct 2025 10:46:19 -0300</pubDate>
						</item>
												<item>
							<title><![CDATA[M27 Dumbbell Nebula Cropped (M27 The Dumbbell Nebula)]]></title>
							<link>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula-Cropped.jpg</link>
							<description><![CDATA[<a title="M27 Dumbbell Nebula Cropped in M27 The Dumbbell Nebula" href="https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&image=M27-Dumbbell-Nebula-Cropped.jpg"><img src="https://sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/M27&amp;i=M27-Dumbbell-Nebula-Cropped.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="M27 Dumbbell Nebula Cropped" /></a><i><b>Click on the image to view it at full resolution,<br>then click again for actual size.</b></i>
<p></p>
<p>
This cropped image shows the <b>Dumbbell Nebula</b> (Messier 27, <a href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC+6853" target="_blank"><b>NGC 6853</b></a>) is a bright, nearby planetary nebula in the small constellation Vulpecula in more detail. 
It is the expanding, ionized shell of gas cast off by a Sun-like star near the end of its life; a hot <i>white dwarf</i> remnant at the center illuminates the nebula, with strong O&nbsp;III and Hα emission producing its characteristic “dumbbell” or apple-core shape. 
Discovered by Charles Messier in 1764, M27 is among the most rewarding planetary nebulae for visual observers and imagers.
</p>
<p>
At a distance of roughly <i>~1,300–1,400 light-years</i> 
(<a href="https://en.wikipedia.org/wiki/Dumbbell_Nebula" target="_blank">M27 overview</a>), 
the main nebular structure spans about <i>8′ × 5.6′</i> on the sky, corresponding to a physical size of roughly <i>2.5–3 light-years</i>. 
In the eyepiece it shows best at moderate magnification; an O&nbsp;III or UHC filter greatly enhances contrast, revealing the bright lobes and fainter outer halo. 
Look for M27 in Vulpecula, roughly midway between the stars γ and 14&nbsp;Vul, just north of the Summer Triangle.
</p>
<p>Total image time was 140 minutes.</p>
<table>
  <tr><td>Moon Phase</td><td><b>Waxing Gibbous 15%</b></td></tr>
  <tr><td>Exposure</td><td>7 x 20 min</td></tr>
  <tr><td>Gain</td><td>100</td></tr>
  <tr><td>Camera</td><td>ToupTek ATR2600C [6224 × 4168]</td></tr>
  <tr><td>Optics</td><td>120mm Sky-Watcher Esprit on a Proxisky UMi20S Strain Wave mount</td></tr>
  <tr><td>Guiding</td><td>ToupTek GPM462M using PHD2 with a 400mm guide scope. Average 15-min sub GuideRMS ranged from 0.53 to 0.74 using 0.5s exposures.</td></tr>
  <tr><td>Controller</td><td>KStars on MeLe Quieter 4C</td></tr>
  <tr><td>Filter</td><td>Triad Quad Ultra (strong O&nbsp;III/Hα response for planetary nebulae)</td></tr>
  <tr><td>Location</td><td>St. Croix Observatory, Nova Scotia.</td></tr>
  <tr><td>Date</td><td>2025-10-24</td></tr>
  <tr><td>Processing</td><td>Processed in PixInsight.</td></tr>
  <tr>
    <td>PixInsight Processing</td>
    <td>
      <table>
        <tr><td>WeightedBatchPreprocessing Script</td></tr>
        <tr><td>BlurXTerminator</td></tr>
        <tr><td>GraXpert</td></tr>
        <tr><td>NoiseXTerminator</td></tr>
        <tr><td>StarXTerminator</td></tr>
        <tr><td>Generalized Hyperbolic Stretch on both the stars and starless images</td></tr>
        <tr><td>PixelMath to recombine the images</td></tr>
        <tr><td>CurveTransformation</td></tr>
      </table>
    </td>
  </tr>
</table>
<p><br />Date: October 26, 2025 ]]></description>
															<category><![CDATA[M27 The Dumbbell Nebula]]></category>
															<guid>https://sciencedowneast.com/zenphoto/index.php?album=Nebulae/M27&amp;image=M27-Dumbbell-Nebula-Cropped.jpg</guid>
							<pubDate>Sun, 26 Oct 2025 10:46:19 -0300</pubDate>
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