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				<title><![CDATA[ScienceDownEast - ScienceDownEast Astrophotography  - IC 433 Jellyfish 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>
				<language></language>
				<pubDate>Sat, 08 Aug 2026 05:30:04 -0300</pubDate>
				<lastBuildDate>Sat, 08 Aug 2026 05:30:04 -0300</lastBuildDate>
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							<title><![CDATA[IC 443 (Jellyfish Nebula) (IC 433 Jellyfish Nebula)]]></title>
							<link>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_GHS_IC+443_sub.jpg</link>
							<description><![CDATA[<a title="IC 443 (Jellyfish Nebula) in IC 433 Jellyfish Nebula" href="https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&image=drizzle_integration_ADBE_GHS_IC+443_sub.jpg"><img src="https://www.sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/Jellyfish-Nebula&amp;i=drizzle_integration_ADBE_GHS_IC%20443_sub.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="IC 443 (Jellyfish Nebula)" /></a>Click on the image to view it at full resolution, then click again for actual size.<br /><br />
IC 443, nicknamed the Jellyfish Nebula, is a supernova remnant in the constellation Gemini, located near the star Eta Geminorum at the foot of the Twins. Estimates place it roughly 5,000 light-years away (with some studies suggesting closer to 6,000), giving it a true diameter on the order of 70 light-years; the explosion that created it likely occurred tens of thousands of years ago, though age estimates vary widely. The remnant is associated with a neutron star, and its shock front is seen colliding with adjacent molecular clouds, producing the tangled, tentacle-like filaments that give the nebula its name. Both HÎ± and O III narrowband filters are effective here, revealing the delicate...<br /><br />
<table>
<tr><td>Moon Phase</td><td>Last Quarter</td></tr>
<tr><td>Camera</td><td>Seestar S30</td></tr>
<tr><td>Optics</td><td>150 mm focal length, f/5, 30 mm aperture (APO triplet)</td></tr>
<tr><td>Date</td><td>2026-04-08</td></tr>
<tr><td>PixInsight Processing</td><td><table>
<tr><td>Fast Integration</td></tr>
<tr><td>Drizzle Integration</td></tr>
<tr><td>BlurXTerminator (AI deconvolution)</td></tr>
<tr><td>Background Neutralization</td></tr>
<tr><td>Automatic Background Extraction</td></tr>
<tr><td>Dynamic Background Extraction</td></tr>
<tr><td>Spectrophotometric Color Calibration</td></tr>
<tr><td>NoiseXTerminator (AI denoise)</td></tr>
<tr><td>StarXTerminator (star removal)</td></tr>
<tr><td>Generalized Hyperbolic Stretch (x5)</td></tr>
<tr><td>PixelMath</td></tr>
<tr><td>Multiscale Median Transform</td></tr>
<tr><td>Curves Transformation</td></tr>
<tr><td>TGV Denoise</td></tr>
</table></td></tr>
</table><br />Date: July 28, 2026 ]]></description>
															<category><![CDATA[IC 433 Jellyfish Nebula]]></category>
															<guid>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_GHS_IC+443_sub.jpg</guid>
							<pubDate>Wed, 08 Apr 2026 00:00:00 -0300</pubDate>
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												<item>
							<title><![CDATA[IC 443 (Jellyfish Nebula) (IC 433 Jellyfish Nebula)]]></title>
							<link>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_MAS_IC+443_sub.jpg</link>
							<description><![CDATA[<a title="IC 443 (Jellyfish Nebula) in IC 433 Jellyfish Nebula" href="https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&image=drizzle_integration_ADBE_MAS_IC+443_sub.jpg"><img src="https://www.sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/Jellyfish-Nebula&amp;i=drizzle_integration_ADBE_MAS_IC%20443_sub.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="IC 443 (Jellyfish Nebula)" /></a>Click on the image to view it at full resolution, then click again for actual size.<br /><br />
IC 443, nicknamed the Jellyfish Nebula, is a supernova remnant in the constellation Gemini, located near the star Eta Geminorum at the foot of the Twins. Estimates place it roughly 5,000 light-years away (with some studies suggesting closer to 6,000), giving it a true diameter on the order of 70 light-years; the explosion that created it likely occurred tens of thousands of years ago, though age estimates vary widely. The remnant is associated with a neutron star, and its shock front is seen colliding with adjacent molecular clouds, producing the tangled, tentacle-like filaments that give the nebula its name. Both HÎ± and O III narrowband filters are effective here, revealing the delicate shock-excited filaments against the surrounding star field, with the brighter western arc offering the most photogenic detail for amateur imagers.<br /><br />
<em>[Source: Wikipedia, en.wikipedia.org/wiki/IC_443; constellation-guide.com]</em><br /><br />
<table>
<tr><td>Moon Phase</td><td>Last Quarter</td></tr>
<tr><td>Camera</td><td>Seestar S30</td></tr>
<tr><td>Optics</td><td>150 mm focal length, f/5, 30 mm aperture (APO triplet)</td></tr>
<tr><td>Date</td><td>2026-04-08</td></tr>
<tr><td>PixInsight Processing</td><td><table>
<tr><td>Fast Integration</td></tr>
<tr><td>Drizzle Integration</td></tr>
<tr><td>BlurXTerminator (AI deconvolution)</td></tr>
<tr><td>Background Neutralization</td></tr>
<tr><td>Automatic Background Extraction</td></tr>
<tr><td>Dynamic Background Extraction</td></tr>
<tr><td>Spectrophotometric Color Calibration</td></tr>
<tr><td>NoiseXTerminator (AI denoise)</td></tr>
<tr><td>Multiscale Adaptive Stretch</td></tr>
</table></td></tr>
</table><br />Date: July 28, 2026 ]]></description>
															<category><![CDATA[IC 433 Jellyfish Nebula]]></category>
															<guid>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_MAS_IC+443_sub.jpg</guid>
							<pubDate>Wed, 08 Apr 2026 00:00:00 -0300</pubDate>
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												<item>
							<title><![CDATA[IC 443 (Jellyfish Nebula) (IC 433 Jellyfish Nebula)]]></title>
							<link>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_MAS.jpg</link>
							<description><![CDATA[<a title="IC 443 (Jellyfish Nebula) in IC 433 Jellyfish Nebula" href="https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&image=drizzle_integration_ADBE_MAS.jpg"><img src="https://www.sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/Jellyfish-Nebula&amp;i=drizzle_integration_ADBE_MAS.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="IC 443 (Jellyfish Nebula)" /></a>Click on the image to view it at full resolution, then click again for actual size.<br /><br />
IC 443, nicknamed the Jellyfish Nebula, is a supernova remnant in the constellation Gemini, located near the star Eta Geminorum at the foot of the Twins. Estimates place it roughly 5,000 light-years away (with some studies suggesting closer to 6,000), giving it a true diameter on the order of 70 light-years; the explosion that created it likely occurred tens of thousands of years ago, though age estimates vary widely. The remnant is associated with a neutron star, and its shock front is seen colliding with adjacent molecular clouds, producing the tangled, tentacle-like filaments that give the nebula its name. Both HÎ± and O III narrowband filters are effective here, revealing the delicate shock-excited filaments against the surrounding star field, with the brighter western arc offering the most photogenic detail for amateur imagers.<br /><br />
<em>[Source: Wikipedia, en.wikipedia.org/wiki/IC_443; constellation-guide.com]</em><br /><br />
<table>
<tr><td>Moon Phase</td><td>Last Quarter</td></tr>
<tr><td>Camera</td><td>Seestar S30 Pro (4K Sony IMX585 sensor)</td></tr>
<tr><td>Optics</td><td>160 mm focal length, f/5.3, 30 mm aperture (APO quadruplet)</td></tr>
<tr><td>Date</td><td>2026-04-08</td></tr>
<tr><td>PixInsight Processing</td><td><table>
<tr><td>Image Integration</td></tr>
<tr><td>Drizzle Integration</td></tr>
<tr><td>Background Neutralization</td></tr>
<tr><td>Automatic Background Extraction</td></tr>
<tr><td>Dynamic Background Extraction</td></tr>
<tr><td>Spectrophotometric Color Calibration</td></tr>
<tr><td>NoiseXTerminator (AI denoise)</td></tr>
<tr><td>Multiscale Adaptive Stretch</td></tr>
</table></td></tr>
</table><br />Date: July 28, 2026 ]]></description>
															<category><![CDATA[IC 433 Jellyfish Nebula]]></category>
															<guid>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_MAS.jpg</guid>
							<pubDate>Wed, 08 Apr 2026 00:00:00 -0300</pubDate>
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												<item>
							<title><![CDATA[IC 443 (Jellyfish Nebula) (IC 433 Jellyfish Nebula)]]></title>
							<link>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_GHS.jpg</link>
							<description><![CDATA[<a title="IC 443 (Jellyfish Nebula) in IC 433 Jellyfish Nebula" href="https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&image=drizzle_integration_ADBE_GHS.jpg"><img src="https://www.sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/Jellyfish-Nebula&amp;i=drizzle_integration_ADBE_GHS.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="IC 443 (Jellyfish Nebula)" /></a>Click on the image to view it at full resolution, then click again for actual size.<br /><br />
IC 443, nicknamed the Jellyfish Nebula, is a supernova remnant in the constellation Gemini, located near the star Eta Geminorum at the foot of the Twins. Estimates place it roughly 5,000 light-years away (with some studies suggesting closer to 6,000), giving it a true diameter on the order of 70 light-years; the explosion that created it likely occurred tens of thousands of years ago, though age estimates vary widely. The remnant is associated with a neutron star, and its shock front is seen colliding with adjacent molecular clouds, producing the tangled, tentacle-like filaments that give the nebula its name. Both HÎ± and O III narrowband filters are effective here, revealing the delicate shock-excited filaments against the surrounding star field, with the brighter western arc offering the most photogenic detail for amateur imagers.<br /><br />
<em>[Source: Wikipedia, en.wikipedia.org/wiki/IC_443; constellation-guide.com]</em><br /><br />
<table>
<tr><td>Moon Phase</td><td>Last Quarter</td></tr>
<tr><td>Camera</td><td>Seestar S30 Pro (4K Sony IMX585 sensor)</td></tr>
<tr><td>Optics</td><td>160 mm focal length, f/5.3, 30 mm aperture (APO quadruplet)</td></tr>
<tr><td>Date</td><td>2026-04-08</td></tr>
<tr><td>PixInsight Processing</td><td><table>
<tr><td>Image Integration</td></tr>
<tr><td>Drizzle Integration</td></tr>
<tr><td>Background Neutralization</td></tr>
<tr><td>Automatic Background Extraction</td></tr>
<tr><td>Dynamic Background Extraction</td></tr>
<tr><td>Spectrophotometric Color Calibration</td></tr>
<tr><td>NoiseXTerminator (AI denoise)</td></tr>
<tr><td>Multiscale Adaptive Stretch</td></tr>
</table></td></tr>
</table><br />Date: July 28, 2026 ]]></description>
															<category><![CDATA[IC 433 Jellyfish Nebula]]></category>
															<guid>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=drizzle_integration_ADBE_GHS.jpg</guid>
							<pubDate>Wed, 08 Apr 2026 00:00:00 -0300</pubDate>
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							<title><![CDATA[IC 433 Jellyfish Nebula (3 hours exposure) from SCO (IC 433 Jellyfish Nebula)]]></title>
							<link>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=IC_433_Jellyfish_Nebula_LPR-EXPTIME_1200_crop_HaS2O3-3-3.jpg</link>
							<description><![CDATA[<a title="IC 433 Jellyfish Nebula (3 hours exposure) from SCO in IC 433 Jellyfish Nebula" href="https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&image=IC_433_Jellyfish_Nebula_LPR-EXPTIME_1200_crop_HaS2O3-3-3.jpg"><img src="https://www.sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/Jellyfish-Nebula&amp;i=IC_433_Jellyfish_Nebula_LPR-EXPTIME_1200_crop_HaS2O3-3-3.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="IC 433 Jellyfish Nebula (3 hours exposure) from SCO" /></a>The <B>Jellyfish Nebula</B> (catalogued as IC 433 and Sharpless 248) is a galactic supernova remnant in the constellation Gemini, located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.

IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
<P>
A total of 3 hours exposure.

<table><tr><td>Exposure</td><td>9@1200 sec</td></tr>
<tr><td>ISO</td><td>800</td></tr>
<tr><td>Camera</td><td>Nikon Z7 [8856 x 5504]</td></tr>
<tr><td>Optics</td><td>Skywatcher Esprit 120mm Refractor</td></tr>
<tr><td>Filter</td><td>Radian Triad Ultra Quad-Band Narrowband Filter</td></tr>
<tr><td>Guiding</td><td>Phd2 using a ZWO 224MC on an Orion 60x240mm Guide scope</td></tr>
<tr><td>Controller</td><td>Images taken using Kstars on an Odroid-N2 (Raspberry Pi clone)</td></tr>
<tr><td>Location</td><td>St. Croix Observatory, Nova Scotia.</td></tr>
<tr><td>Date</td><td>2021-03-16</td></tr>
<tr><td>PixInsight Processing</td><td><table><tr><td>WeightedBatchPreprocessing Script</td></tr><tr><td>Dynamic Crop</td></tr><tr><td> Automatic Background Extractor</td></tr><tr><td> MultiscaleLinearTransform</td></tr><tr><td> HistogramTransform</td></tr><tr><td>CurvesTransformation</td></tr><tr><td>LocalHistogramEquilization</td></tr></table></td></tr>
<tr><td>Further tweaking for colour in Lightroom</td></tr>
</table>
<br />Date: March 26, 2025 ]]></description>
															<category><![CDATA[IC 433 Jellyfish Nebula]]></category>
															<guid>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=IC_433_Jellyfish_Nebula_LPR-EXPTIME_1200_crop_HaS2O3-3-3.jpg</guid>
							<pubDate>Wed, 17 Mar 2021 18:21:01 -0300</pubDate>
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							<title><![CDATA[Jellyfish_Nebula (4 hours exposure) (IC 433 Jellyfish Nebula)]]></title>
							<link>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=Jellyfish_Nebula_LPR-12x1200.jpg</link>
							<description><![CDATA[<a title="Jellyfish_Nebula (4 hours exposure) in IC 433 Jellyfish Nebula" href="https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&image=Jellyfish_Nebula_LPR-12x1200.jpg"><img src="https://www.sciencedowneast.com/zenphoto/zp-core/i.php?a=Nebulae/Jellyfish-Nebula&amp;i=Jellyfish_Nebula_LPR-12x1200.jpg&amp;s=240&amp;cw=0&amp;ch=0&amp;q=75&amp;t=1&amp;wmk=%21&amp;check=8370823adfbba2ffb7e8929c0ab7807f5bdcd9a5" alt="Jellyfish_Nebula (4 hours exposure)" /></a>The <B>Jellyfish Nebula</B> (catalogued as IC 433 and Sharpless 248) is a galactic supernova remnant in the constellation Gemini, located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.

IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
<P>
A total of 4 hours exposure.

<table><tr><td>Exposure</td><td>12@1200 sec</td></tr>
<tr><td>ISO</td><td>800</td></tr>
<tr><td>Camera</td><td>Nikon Z7 [8856 x 5504]</td></tr>
<tr><td>Optics</td><td>Skywatcher Esprit 120mm Refractor</td></tr>
<tr><td>Filter</td><td>Radian Triad Ultra Quad-Band Narrowband Filter</td></tr>
<tr><td>Guiding</td><td>Phd2 using a ZWO 224MC on an Orion 60x240mm Guide scope</td></tr>
<tr><td>Controller</td><td>Images taken using Kstars on an Odroid-N2 (Raspberry Pi clone)</td></tr>
<tr><td>Location</td><td>Lower Sackville, Nova Scotia.</td></tr>
<tr><td>Date</td><td>2021-03-08</td></tr>
<tr><td>PixInsight Processing</td><td><table><tr><td>WeightedBatchPreprocessing Script</td></tr><tr><td>Dynamic Crop</td></tr><tr><td> Automatic Background Extractor</td></tr><tr><td> MultiscaleLinearTransform</td></tr><tr><td> HistogramTransform</td></tr><tr><td>CurvesTransformation</td></tr><tr><td>LocalHistogramEquilization</td></tr></table></td></tr>
<tr><td>Further tweaking for colour in Lightroom</td></tr>
</table>
<br />Date: March 26, 2025 ]]></description>
															<category><![CDATA[IC 433 Jellyfish Nebula]]></category>
															<guid>https://www.sciencedowneast.com/zenphoto/index.php?album=Nebulae/Jellyfish-Nebula&amp;image=Jellyfish_Nebula_LPR-12x1200.jpg</guid>
							<pubDate>Tue, 09 Mar 2021 08:17:56 -0400</pubDate>
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