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NGC 2264 Cone Nebula HA - New processing workflow, Paddy Gilliland

NGC 2264 Cone Nebula HA - New processing workflow

Getting plate-solving status, please wait...
NGC 2264 Cone Nebula HA - New processing workflow, Paddy Gilliland

NGC 2264 Cone Nebula HA - New processing workflow

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Description

Having not been satisfied with my last few images i have now reworked most of my processing workflow - moving away from the lazy BPP approach and manually calibrating all data. I have also used a little (and i mean a little Mure denoise) this target was very strong so almost looks like it has too much NR - but this is the target characteristics in HA. When blended with other channels processed the same way it should all balance out. C&C Welcomed.

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The Cone Nebula is an H II region in the constellation of Monoceros. It was discovered by William Herschel on December 26, 1785, at which time he designated it H V.27. The nebula is located about 830 parsecs or 2,700 light-years away from Earth. The Cone Nebula forms part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone.

The diffuse Cone Nebula, so named because of its apparent shape, lies in the southern part of NGC 2264, the northern part being the magnitude-3.9 Christmas Tree Cluster. It is in the northern part of Monoceros, just north of the midpoint of a line from Procyon to Betelgeuse.

The cone's shape comes from a dark absorption nebula consisting of cold molecular hydrogen and dust in front of a faint emission nebula containing hydrogen ionized by S Monocerotis, the brightest star of NGC 2264. The faint nebula is approximately seven light-years long (with an apparent length of 10 arcminutes), and is 2,700 light-years away from Earth.

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  • NGC 2264 Cone Nebula HA - New processing workflow, Paddy Gilliland
    Original
  • Final
    NGC 2264 Cone Nebula HA - New processing workflow, Paddy Gilliland
    B

Histogram

NGC 2264 Cone Nebula HA - New processing workflow, Paddy Gilliland