Telescope:

 8" f5 Newtonian reflector

Camera:

  ST-8XME, self-guides, binned 1x1, temp -20c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 290 minutes (29 x 10 minute subs), 03/15/16/2007

Processing:

CCDStack 1.1, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes:

The 'Cone Nebula' is this little finger of dark nebulosity in a small eastern part of the much larger object known as Sh2-273 (LBN 911). Sh2-273 is approximately 140' in size and irregularly shaped, and contains the open cluster NGC 2264, also known as the 'Christmas Tree' cluster. This image replaces a 122 minute red-filtered Track & Accumulate image from 03/19/2006