NGC 6643 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 6643 · PGC 2763587

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NGC 6643

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NGC 6643

This object is a spiral galaxy 70 million light years away in the constellation of Draco at a declination of +74 degrees. This galaxy spans 3 arc-minutes in our apparent view, which corresponds to an actual diameter of 70,000 light years. The galaxy is smaller than it seems in my image - I cropped to avoid some bright stars. The field radius of the image is only 0.15 degrees.

This galaxy shows subtle color variations – yellow in the core, purple in the inner region and blue towards the outer edges. Several bright star clusters are visible through the haze. The structure is a bit flocculent but not fully so. The most interesting part is the odd single strong arm structure. I am not sure what is causing this – no companion is visible although a few knots look suspicious.

Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers
Texas Astronomy
Images from the EdgeHD Series

Flocculent Galaxies

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Status	Advanced success
Started	...
Astrometry.net job	3620768
PixInsight job	9PDUDG6M2NL24Z1K36E16OHFF0JMV8KJ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h19m47s.165
RA (top/left)	18h21m24s.656
RA (top/right)	18h17m45s.802
RA (bottom/right)	18h18m11s.590
RA (bottom/left)	18h21m47s.459

Dec (center)	+74°34′14″.19
Dec (top/left)	+74°40′45″.39
Dec (top/right)	+74°38′37″.83
Dec (bottom/right)	+74°27′40″.76
Dec (bottom/left)	+74°29′46″.39

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