NGC 2903 (mlewis)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 2903 · NGC 2905

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NGC 2903

Link: https://www.thinairphotography.com/Astrophotography-Portfolio/Galaxies/i-rd7CG75/A

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NGC 2903

Link: https://www.thinairphotography.com/Astrophotography-Portfolio/Galaxies/i-rd7CG75/A

Here is the 1st published image captured using my EdgeHD 9.25 scope, running at 1645mm with the 0.7x reducer.

This is galaxy NGC 2903, a barred spiral galaxy located in the constellation Leo. This is a perfect example of a target that is just too small to capture with decent detail using my 4 inch refractor telescope (with its 580mm focal length). This image is made from 7 hours and 42 minutes of RGB data using 3 minute long subframes. I am still trying to get some things dialed in on this setup but I am pretty happy with this result especially as a starting point for future imaging sessions with this gear.

From Wikipedia:
NGC 2903 is an isolated barred spiral galaxy in the equatorial constellation of Leo, positioned about 1.5° due south of Lambda Leonis.[10] It was discovered by German-born astronomer William Herschel, who cataloged it on November 16, 1784. He mistook it as a double nebula, as did subsequent observers, and it wasn't until the nineteenth century that the Third Earl of Rosse resolved into a spiral form.[5] J. L. E. Dreyer assigned it the identifiers 2903 and 2905 in his New General Catalogue; NGC 2905 now designates a luminous knot in the northeastern spiral arm.[11]

This field galaxy[12] is located about 30[3] million light-years away from the Milky Way, and is a member of the Virgo Supercluster.[4]

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Status	Advanced success
Started	...
Astrometry.net job	7529584
PixInsight job	LWI2FPRUYB2369RL8357MM31KTCTLMKF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h32m15s.579
RA (top/left)	09h31m53s.247
RA (top/right)	09h31m23s.896
RA (bottom/right)	09h32m37s.679
RA (bottom/left)	09h33m07s.244

Dec (center)	+21°32′10″.34
Dec (top/left)	+21°49′18″.97
Dec (top/right)	+21°18′48″.22
Dec (bottom/right)	+21°14′57″.13
Dec (bottom/left)	+21°45′28″.50

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