The Lonely galaxy NGC 2903 (Andrea Girones)

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

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The Lonely galaxy NGC 2903

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The Lonely galaxy NGC 2903

ere is my image of the lovely ( and lonely) galaxy NGC 2903 located in the constellation of Leo.

I have been planning to capture this galaxy for almost a year since I first heard about it and tried to frame it in Telescopius. It was a perfect size for the deep deep deep sky rig, namely a Celestron 11 inch SCT scope with a 0.7x reducer for a focal length of 1960mm with an APS-C size sensor the ASI 2600MM and MC.

I first took some monochrome images (for more detail) back in April and finished off some colour images, this past May weekend.

NGC 2903 is a lonely galaxy because it is an isolated barred spiral field galaxy A field galaxy is a galaxy that does not belong to a larger galaxy group or cluster and hence is gravitationally alone. A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars

It was discovered by German-born astronomer William Herschel, who cataloged it on November 16, 1784. The little fuzzy in the images is irregular dwarf galaxy KKH 51 which appears to be a companion to NGC2903.

TECH Stuff
Celestron C11 SCT with 0.7 x reducer
Celestron OAG 290MM guidescope
ASI 260MM and 2600MC gain 100 cooled to -10
60 x 180s for L
45x 180s for Colour
Calibrated with flats darks and dark flats
Stacked and processed in Pixinsight, with final touches in photoshop, BlurX And Noise X used.

Original
B
Final
C

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Status	Advanced success
Started	...
Astrometry.net job	7710598
PixInsight job	G4OLLEY3T0CUDL6YFXV9KY1UB63RJ0ZC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h32m09s.834
RA (top/left)	09h30m56s.236
RA (top/right)	09h32m03s.970
RA (bottom/right)	09h33m23s.495
RA (bottom/left)	09h32m16s.573

Dec (center)	+21°30′47″.45
Dec (top/left)	+21°30′01″.10
Dec (top/right)	+21°47′51″.88
Dec (bottom/right)	+21°31′31″.87
Dec (bottom/left)	+21°13′42″.97

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The Lonely galaxy NGC 2903

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