NGC 6255 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: NGC 6255

NGC 6255

This object is a barred low surface brightness galaxy located 60 million light years away in the constellation of Hercules at a declination of +37 degrees. This galaxy spans 3.5 arc-minutes in our apparent view, which corresponds to a diameter of 60,000 light years.

I find the structure of this blue galaxy to be very interesting. It looks primarily like a barred grand design spiral, with 2 strong arms, seen close to edge-on. Except that the top arm also extends to the right. The net effect is that the central bar is offset a bit to the left.

Numerous small star clusters are visible throughout the disk. A bright blue star cloud, possibly a galaxy companion, is at the left edge of the disk. If it is a small galaxy, as indicated by SIMBAD, it could be enough of an influence to create the interesting arm structure.

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Status	Advanced success
Started	...
Astrometry.net job	4690751
PixInsight job	JPHP22N6AUIMQ6FKHT0N25A05FDQCQI0
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	16h54m47s.341
RA (top/left)	16h55m26s.790
RA (top/right)	16h54m07s.239
RA (bottom/right)	16h54m08s.704
RA (bottom/left)	16h55m27s.345

Dec (center)	+36°30′06″.32
Dec (top/left)	+36°35′57″.38
Dec (top/right)	+36°35′34″.44
Dec (bottom/right)	+36°24′14″.45
Dec (bottom/left)	+36°24′37″.38

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