Arp 171 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: IC 1039 · IC 1041 · IC 1042 · IC 1043 · NGC 5718

Arp 171

This Astrobin Debut Object is a pair of large interacting elliptical galaxies located 390 million light years away in the constellation of Virgo at a declination of +3 degrees. The left galaxy is NGC 5718 and the right galaxy is IC 1042.

These magnitude 14 galaxies each span about 1.5 arc-minutes in our apparent view, which corresponds to a diameter of 160,000 light years. This object was classified by Dr. Arp into the category of Galaxies with Diffuse Counter-tails.

I love the complimentary shapes of these two close ellipticals. The galaxies are most dense on the sides away from each other. Tidal forces are shaping the streams.

The colors and structures of the surrounding galaxies is interesting. I particularly like the galaxy above left, 2MASX J14405642+0331455. It is 0.5 billion light years away and 80,000 light years in diameter. The looping structure is accentuated by its blue and yellow colors.

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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	4339774
PixInsight job	8EGC5XXPMMH43WGUOZ11BACGFIMTCDCK
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	14h40m41s.290
RA (top/left)	14h41m16s.871
RA (top/right)	14h40m07s.205
RA (bottom/right)	14h40m05s.193
RA (bottom/left)	14h41m14s.830

Dec (center)	+03°28′02″.00
Dec (top/left)	+03°34′25″.79
Dec (top/right)	+03°35′04″.90
Dec (bottom/right)	+03°21′38″.30
Dec (bottom/left)	+03°20′59″.10

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Arp 171

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