Arp 46 and UGC 12667 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: PGC 71748 · PGC 71753

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Arp 46 and UGC 12667

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Arp 46 and UGC 12667

This image captures a pair of objects (Arp 46 & UGC 12667) located in the constellation of Pegasus at a declination of +30 degrees. Both are Astrobin Debut Objects.

Arp 46, on the right, was classified by Dr. Arp into the category of Spiral Galaxies - Low Surface Brightness Companions on Arms. The large disturbed spiral galaxy is UGC 12665 and the companion at upper left is VV314b. UGC 12665 is a magnitude 15 object located 250 million light years away. It spans 1 arc-minute in our apparent view, which corresponds to a diameter of 70,000 light years.

I love how the upper arm of the spiral galaxy has been “captured” by the companion and moved to the right, leaving a star stream haze in its wake. It is not often that you see such clear interaction between a large spiral galaxy and its companion. The companion is bright, perhaps indication a burst of star formation.

The spiral galaxy at left is UGC 12667, located at half the distance away (130 million light years). This galaxy is only 40,000 light years in diameter but has a clear and interesting arm structure, with what appears to be 6 arms flailing about.

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Description: Comparison to Original Arp Image

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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	4231329
PixInsight job	RZCGVV89KQ8B7N1VAHL8E401XFFF9K0X
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h33m44s.626
RA (top/left)	23h34m28s.104
RA (top/right)	23h32m59s.218
RA (bottom/right)	23h33m01s.261
RA (bottom/left)	23h34m29s.934

Dec (center)	+30°02′55″.90
Dec (top/left)	+30°10′20″.80
Dec (top/right)	+30°09′46″.12
Dec (bottom/right)	+29°55′30″.69
Dec (bottom/left)	+29°56′04″.72

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Arp 46 and UGC 12667

Arp 46 and UGC 12667

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Arp 46 and UGC 12667

Arp 46 and UGC 12667

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