Sh2-274 Medusa Nebula #2 (Molly Wakeling)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: NGC 2395 · PGC 139019 · PGC 1415162 · PGC 1417386 · PGC 1418128 · PGC 1419108 · PGC 1419445 · PGC 1419802 · PGC 1419879 · PGC 1420191 · PGC 1420282 · PGC 1420816 · PGC 1421175 · PGC 1421399 · PGC 1421404 · PGC 1421568 · PGC 1421653 · PGC 1422135 · PGC 1422206 · PGC 1422431 · PGC 1422894 · PGC 1424362 · PGC 1425279 · PGC 1426182 · PGC 1428980 · PGC 1429651 · PGC 1432041 · PGC 1435465 · PGC 1435525 · PGC 1435645 · And 13 more.

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Sh2-274 Medusa Nebula #2

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Sh2-274 Medusa Nebula #2

The Medusa Nebula! Really happy with how this one came out.

Also in the Sharpless catalog as Sh2-274, the Medusa Nebula is a planetary nebula. It was originally thought to be a supernova remnant, but by looking at its expansion velocity and radio emissions, it was determined to actually be a planetary nebula. It lies about 1,500 lightyears away in the constellation Gemini, which is up during the wintertime. The serpentine gas filaments throughout this nebula evoke the idea of Medusa.

I'm really liking the Optolong L-eXtreme filter I'm using. Doing narrowband on a color camera yields some pretty low signal-to-noise ratio, but by taking a lot of exposures and applying some denoising techniques, this can be somewhat overcome. Got about 7.3 hours on this one of good images.

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Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	4582707
PixInsight job	LKQMXOZKYMG5UODACA5Z1E9LGP7NOG5V
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	07h28m55s.99
RA (top/left)	07h26m10s.13
RA (top/right)	07h31m29s.67
RA (bottom/right)	07h31m42s.51
RA (bottom/left)	07h26m21s.36

Dec (center)	+13°15′28″.1
Dec (top/left)	+12°45′57″.1
Dec (top/right)	+12°42′20″.8
Dec (bottom/right)	+13°44′50″.7
Dec (bottom/left)	+13°48′27″.2

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Sh2-274 Medusa Nebula #2

Sh2-274 Medusa Nebula #2

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Sh2-274 Medusa Nebula #2

Sh2-274 Medusa Nebula #2

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