NGC 7171 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: IC 1417 · NGC 7171 · PGC 939170

NGC 7171

This image captures a pair of galaxies located in the constellation of Aquarius at a declination of -13 degrees. The galaxy in the center, NGC 7171, is located 140 million light years away. It spans 2 arc-minutes in our apparent view, which corresponds to an actual diameter of about 100,000 light years. The galaxy is slightly barred, but strangely the arms don’t begin at the end of each bar. Instead, they seem to emanate from the short non-bar side of the core.

The galaxy looks a bit disturbed to me, with the disk extending slight further up to the right than down to the left. Perhaps the small smudge to the upper right is a small dwarf galaxy. But I couldn’t find any place that identified it, nor could I find any studies of NGC 7171 itself.

The smaller spiral ring galaxy at upper right, IC 1417, is larger in actual size than NGC 7171. It is over twice as far away at 330 million light years. It spans 1 arc-minute in our apparent view, which corresponds to an actual diameter of 120,000 light years.

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Status	Advanced success
Started	...
Astrometry.net job	4087692
PixInsight job	MK8SXSWQ2FBNFTJ7E09LXEWO4EBYZZFR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h01m01s.663
RA (top/left)	22h01m43s.850
RA (top/right)	22h00m17s.255
RA (bottom/right)	22h00m19s.434
RA (bottom/left)	22h01m46s.106

Dec (center)	-13°16′05″.69
Dec (top/left)	-13°07′47″.58
Dec (top/right)	-13°08′30″.73
Dec (bottom/right)	-13°24′23″.39
Dec (bottom/left)	-13°23′40″.13

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