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NGC2264 / Cone Nebula-Christmas Tree Nebula

Classification: Emission Nebula / NGC2264 / Sh2-273 / B39 / H27-5
Constellation: Monoceros (MON)
Object Location: Ra 06h 41m 49s Dec +09° 52’41” (current)
Size & Distance: 40 x 40 Apx 2700 Light-years.

Date & Location: 12-25/26-2011 Little Blair Valley, CA
Exposure: Ha= 20 @ 15min. (bin 1x1)
Optics: Takahashi Epsilon-210 f3 630mm. w/ FLI-PDF focuser.
Mount: Astro-Physics 900 GTO / ATS 10x36 pier.
Camera: SBIG-STL6303E @-20/ Guided by TV60APO, SBIG-RGH
Filters: Astrodon 5nm Ha, Gen2 RGB
Software: MaxImDL 4.56, Photoshop CS5

Notes: Sky conditions: Good seeing, Light wind, Temp 21°-30°
Image Field of view is 150 x 100 arc-min.

The Cone Nebula is an H II region in the constellation of Monoceros. It was discovered by William Herschel on December 26, 1785. The nebula is located about 2,700 light-years away from Earth. The Cone Nebula forms part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC refers to both objects and not the nebula alone.

Images referred to in this field of view: The Cone Nebula, The Christmas Tree Cluster, The Fox Fur Nebula