Arp 165 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: NGC 2418

Arp 165

This object, also known as NGC 2418, is an elliptical galaxy located 230 million light years away in the constellation of Gemini at a declination of +18 degrees. This galaxy spans almost 2 arc-minutes in our apparent view, which corresponds to an actual diameter of 130,000 light years.

Elliptical galaxies are my least favorite to image, but I felt that this one deserved a chance despite the fact that very little has been written on it. It has a star stream arm which extends up, and a similar fainter broader region which extends to the left.

Something is disturbing this galaxy, but what? I see at least 7 smaller faint galaxies that could be companions, none of whom have any redshift/distance data. The galaxy which looks most likely as a companion to me, because of its brightness and the direction of the upward star stream, is galaxy LEDA 213407 at 11 o'clock.

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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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Status	Advanced success
Started	...
Astrometry.net job	3332522
PixInsight job	AAWNBIIK7OOGCAXG4JDT8QBYU412HQTZ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	07h36m37s.805
RA (top/left)	07h37m14s.400
RA (top/right)	07h36m00s.650
RA (bottom/right)	07h36m01s.646
RA (bottom/left)	07h37m14s.902

Dec (center)	+17°53′06″.40
Dec (top/left)	+17°59′52″.30
Dec (top/right)	+17°59′33″.65
Dec (bottom/right)	+17°46′19″.57
Dec (bottom/left)	+17°46′38″.60

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Arp 165

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