Rosette Nebula
Narrow band filter Astrophotography
by Eric Girardin
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12 2015
Grand-Praz
FSQ-106
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FLI 16803
12 x 20 min
8 x 20 min
8 x 20 min
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Rosette Nebula Cadwell 49
Mon
5800 light years
H alpha circular nebula. This is a "true color" H-alpha, SII and OIII image made according to the article in the December 2011 issue of Sky and Telescope, p. 70. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula..