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The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter. The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 50 light-years in diameter.
Takahashi FSQ-85, FL 450mm
About this Image
Technical Details
Optics
Mount
Chart32 fork mount piggyback
Camera
Nikon D810A with remote timer
Date
Jan 2015
Location
CTIO Chile
Sky Conditions
mag 21.5 sky, temperature 10-15 C
Exposure
8x5 min at ISO800 combined and 10% cropped
Programs used
ImagesPlus
CCDStack
Photoshop CS5