NGC 2403, The Twin-of-M33 Galaxy (Bill Dirks)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403 · NGC 2404

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NGC 2403, The Twin-of-M33 Galaxy

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NGC 2403, The Twin-of-M33 Galaxy

At first glance this appears to be another image of M33, but it is NGC 2403. This galaxy is a near twin of the Triangulum Galaxy, having similar structure, color, and even the approximate angle of orientation to Earth. Compared to M33, NGC 2403 is about three times farther away, and about one third the apparent size. This amazing galaxy is rich in red star-forming regions, and sparkles with hot young blue stars.

Captured with a monochrome camera and L,R,G,B filters. One night devoted to collecting R,G,B exposures, and three nights to L exposures, minus a few hours due to clouds. The last night had very good seeing. The final image used all but five exposures.

Super happy with how this image turned out. Lots of detail, and wide, faint spiral arms are detectable extending almost to the edge of field (was not expecting that). Maybe deserves some more integration time on R,G,B but there were too many cloudy nights this January.

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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	9096703
PixInsight job	GS2ERZWO35DJJVOP4GSB1KFO91U6HKUB
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h36m50s.243
RA (top/left)	07h38m39s.157
RA (top/right)	07h34m55s.407
RA (bottom/right)	07h35m02s.963
RA (bottom/left)	07h38m43s.533

Dec (center)	+65°36′03″.65
Dec (top/left)	+65°47′27″.10
Dec (top/right)	+65°46′48″.39
Dec (bottom/right)	+65°24′35″.39
Dec (bottom/left)	+65°25′13″.59

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NGC 2403, The Twin-of-M33 Galaxy

NGC 2403, The Twin-of-M33 Galaxy

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NGC 2403, The Twin-of-M33 Galaxy

NGC 2403, The Twin-of-M33 Galaxy

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