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The Details
Object
NGC 2264 Cone Nebula in Monoceros
Optics
Astro-Physics 160 EDF Refractor at f/7.5
Platform
Astro-Physics 1200 GTO
Camera
SBIG ST-10XME
Filters
Tru-Balance LRGB filter set and diffraction spike mask
Date
02 February 2006
Location
Aztec Hills near Dateland, Arizona - Yuma County
Exposure

L 12 x 600 sec 1x1 bin, RGB 4ea x 300 sec 2x2 bin

Software
Maxim DL/CCD, Registar, Photoshop CS, Neat Image 4.4 Pro+
Orientation
Field of View: 28'36" x 39’45" centered on RA 06h41m09.4s
DEC +09°29’10” (2000.0) . North angle 4.9 °; east 90° CCW from north
Notes

A large, faint emission nebula and bright galactic association of stars known as The Christmas Tree Cluster form object NGC 2264, which itself contains a unique feature known as the Cone Nebula. The Cone Nebula’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 nearby star S Monocerotos, the brightest star of NGC 2264. The faint nebula is approximately seven light-years long and is 2,700 light-years away from Earth. It was discovered by the famed English astronomer William Herschel on December 26, 1785.

 

 

 

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