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Contains:  NGC 2903, NGC 2905, NGC 2916
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NGC 2903 and NGC 2916, 


            K. Schneider
NGC 2903 and NGC 2916
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NGC 2903 and NGC 2916

Technical card

Dates:April 8, 2016

Frames: 42x80" ISO800

Integration: 0.9 hours

Darks: ~10

Flats: ~10

Bias: ~10

Avg. Moon age: 1.21 days

Avg. Moon phase: 1.65%

Basic astrometry details job: 1032263

RA center: 9h 32' 41"

DEC center: +21° 29' 34"

Pixel scale: 2.178 arcsec/pixel

Orientation: -168.563 degrees

Field radius: 1.054 degrees

Resolution: 2819x2048

Locations: Garden, Zwingenberg, Germany


NGC 2903 is the brightest galaxy in Leo, the largest one as well, very easy to locate - and yet Charles Messier missed to add it to his list. NGC 2916 looks like a close companion, but the visual vicinity is an illusion. In fact, NGC 2916 is a large and luminous radio-galaxy, which lies way remote in the background, at a distance of some 130 Million Lj. from the sun. In the enlarged frame, even PGC 27249 with m16.0 can be discerned SSE of NGC 2916, 170 Million Lj. off.

B.t.w.: a bright star cloud in NGC 2903 has a NGC-number on its own, and this is "NGC 2905".



K. Schneider
License: None (All rights reserved)


  • Final
    NGC 2903 and NGC 2916, 


            K. Schneider

Sky plot

Sky plot


NGC 2903 and NGC 2916, 


            K. Schneider