Arp 249 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg)

Arp 249

This Astrobin Debut Object, also known as UGC 12891, is a pair of elliptical galaxies located 0.5 billion light years away in the constellation of Pegasus at a declination of +23 degrees. In his Arp catalog, Dr. Arp classified this object into the category of Galaxies with Appearance of Fission.

This magnitude 16 object is comprised of 2 elliptical galaxies, each about 70,000 light years In diameter. These 2 galaxies appear to be interacting, based on their slightly deformed galactic haloes and more importantly the star cloud to the upper left. This star cloud appears to connect via stellar bridge to the galaxies. Dr. Arp called this feature a “jet”, but it does not appear to be a true jet to me.

The cloud is much larger relative to the galaxies than any other feature like this that I have seen near an elliptical. It could be the remnants of a former galaxy being absorbed into this pair.

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Description: Comparison to Original Arp Image

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Status	Advanced success
Started	...
Astrometry.net job	4896111
PixInsight job	KQHA45RF67IFE05U13IK2VC9RJUUA8HH
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h00m19s.634
RA (top/left)	00h00m55s.286
RA (top/right)	00h00m02s.494
RA (bottom/right)	23h59m43s.989
RA (bottom/left)	00h00m36s.745

Dec (center)	+22°59′27″.43
Dec (top/left)	+23°00′09″.92
Dec (top/right)	+23°06′41″.17
Dec (bottom/right)	+22°58′44″.49
Dec (bottom/left)	+22°52′13″.63

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Arp 249

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