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Catalogue and alternative designations M104,  NGC 4594, Sombrero galaxy

 

Type Galaxy 
Position 12 39 59, - 11 37 23
Constellation Virgo
Camera and Telescope STXL6303 and 36.8 cm RCOS Ritchey Chretien 
Focal Ratio F9
Exposure Details LRGB image using Astrodon filters.  Luminance = 20 minutes, Red = Green = Blue = 60 minutes all unbinned
Description The Sombrero galaxy is easily visible in small telescopes having a visual magnitude of 8.0 and an angular size of 9 x 4 arc minutes. The actual diameter is about 50,000 light years.  The distance is about 31.1 million light years.  This galaxy is notable for the very bright centre, large central bulge and prominent dust lane. Recent observations by the Spitzer space telescope have shown that the halo of M104 is much more massive than previously thought.