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NGC 2244, NGC 2237-9, 46
Object Type: Open cluster, Emission nebula
Constellation: Monoceros
Magnitude: 4.8
Size: 80' x 60'

The Rosette Nebula is a large emission nebula surrounding the open cluster NCG 2244. When viewed with an O-III or narrowband filter, it is an impressive object in small telescopes.

Equipment: Vixen 102-ED/TS Optics field flattener/STL-11000M/Astrodon LRGB filters/Paramount ME
F-ratio: f/6.5
Exposures: RRGB: R 10 x 12 minutes: G 10 x 6 minutes: B 10 x 6 minutes: GB binned 2x2
Date: January 8, 2010
Location: Landers, California, USA
Technical Notes: Exposures were sigma combined, and the RGB image assembled in Registar 1.0. Reduce Noise was applied to the RGB image and the dim portions of the luminance image.