NGC 891 (John Hayes)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: NGC 891

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NGC 891

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NGC 891

This data was collected in desperation before a big winter storm arrived. About one hour of data was collected under cold, dark moonless skies with only marginal transparency. The rest of the data (maybe 2/3) was collected with the moon above the horizon. Needless to say, the moon really screwed up the background and the colors so after stacking it all together, so I had to work pretty hard to produce a reasonable rendition of the color. Overall, I'm pretty happy with the result. This is a very cool object. I particularly like the little galaxy that appeared in the far lower right. After cropping, this is about 90% of the full 24 x 36 mm frame.

Update: I've never been very happy with the way that I originally processed this data so I took another swing at it with PixInsight. The noise is much more under control and the colors in this latest revision (E) are more accurate. I think that it looks better but I'm always happy to hear C&C.

... John

Original
B
C
D
Final
E

Cloudy Nights

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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	3456225
PixInsight job	112RA5AMVYOD5C28WGUNN06XG7TGC5A3
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h22m36s.207
RA (top/left)	02h21m14s.168
RA (top/right)	02h23m51s.389
RA (bottom/right)	02h23m57s.375
RA (bottom/left)	02h21m20s.702

Dec (center)	+42°20′07″.37
Dec (top/left)	+42°28′50″.69
Dec (top/right)	+42°30′31″.60
Dec (bottom/right)	+42°11′20″.37
Dec (bottom/left)	+42°09′35″.58

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