NGC 2264, the "Cone Nebula"
Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.
The Cone Nebula is an Hydrogen emission region in the constellation Monoceros. Nebula is located about 2600 light years away from Earth. The cone Nebula forms part of the nebulosity surrounding the Christmas Tree Cluster. Note, NGC 2264 refers to both objects, not the nebula alone.
I have shot this object and the Rosette Nebula as a mosaic at Spring 2009, image can be found here:
The Cone Nebula area can be seen at the Left side.
Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations, 50% mix..
Levels, curves and color combine in PS CS3.
Telescope, Meade LX200 GPS 12" @ f5
Camera, QHY9 Guiding, SXV-AO @ 6,5Hz
Image Scale, 0,75 arcseconds/pixel
Baader H-alpha 7nm 12x1200s, binned 2x2
Baader O-III 8,5nm 3x1200s, binned 3x3
S-II is taken from my older wide field image