UGC 11905 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg)

UGC 11905

This Astrobin Debut Object is a disturbed spiral galaxy located 350 million light years away in the constellation of Pegasus at a declination of +21 degrees. It has a blue magnitude of 15.

The galaxy disk spans 30 arc-seconds in our apparent view, which corresponds to a diameter of 50,000 light years. The star streams extend for 250,000 light years from top to bottom.

This object appears to be the result of a galaxy merger which is far enough along that only a single coalesced core is visible - no disk remains. I love the star stream loops and the long extended star stream downward. Simulations of other galaxy mergers have recreated these star stream patterns.

I have included this object in my late stage galaxy merger collection, entitled Galaxy Merger Stage D – Coalesced Cores. This object looks very similar to NGC 17.

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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.

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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	5532706
PixInsight job	48U8M5NXW795KVDQSIJFV9ICVN3NI0E9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h05m54s.617
RA (top/left)	22h06m19s.478
RA (top/right)	22h05m27s.632
RA (bottom/right)	22h05m29s.870
RA (bottom/left)	22h06m21s.670

Dec (center)	+20°38′18″.89
Dec (top/left)	+20°43′28″.72
Dec (top/right)	+20°42′48″.11
Dec (bottom/right)	+20°33′10″.90
Dec (bottom/left)	+20°33′48″.96

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UGC 11905

UGC 11905

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UGC 11905

UGC 11905

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