The
Rosette Nebula (also known as
Caldwell 49) is an
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 5,000
light-years from
Earth and measure roughly 130 light years in diameter.
Source: Wikipedia
Data acquired by
@Terry Hancock. System 1, Grand Mesa Observatory (GMO), CO, USA. Available via subscription with GMO.
Data processing: Terry Hancock & Jon Gascoyne (
https://downunderobservatory.com/tutorials)
In this narrowband Hubble Palette version (SHO) of NGC 2244 the H-alpha is mapped to green channel, SII is mapped to red channel and OIII is mapped to the blue channel. The raw data was pre-processed using PixInsight, the stars were removed using StarXterminator and the stars were later replaced during post-processing in Photoshop CC with the more naturally colored stars from the RGB data. Detail within the narrowband data was enhanced by utilising the H-alpha channel as a pseudo-luminance layer.
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