Hickson 21 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Eridanus (Eri) · Contains: NGC 1091 · NGC 1092 · NGC 1098 · NGC 1099 · NGC 1100

Hickson 21

This object is a galaxy group located 360 million light years away in the constellation of Eridanus at a declination of -18 degrees. It is unusual to have 5 NGC galaxies in such a tight framing. Although they are called a group, they are not near to each other and are not interacting.

The brightest galaxy in the group, Hickson 100a, is also known as NGC 1099. This magnitude 14 galaxy spans 2 arc-minutes in our apparent view, which corresponds to a large diameter of 180,000 light years. I like the disk structure of this galaxy and the color of its nuclear ring.

Several interesting faint galaxies are in the background of the group.

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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	5362123
PixInsight job	2ELQJO0BPK474VI4V5Q4MV3N2T48WZ3U
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h45m10s.506
RA (top/left)	02h45m58s.961
RA (top/right)	02h44m21s.887
RA (bottom/right)	02h44m21s.998
RA (bottom/left)	02h45m59s.181

Dec (center)	-17°37′10″.68
Dec (top/left)	-17°29′17″.10
Dec (top/right)	-17°29′21″.14
Dec (bottom/right)	-17°45′03″.85
Dec (bottom/left)	-17°44′59″.49

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Hickson 21

Hickson 21

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Hickson 21

Hickson 21

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