Emission Nebula. The dark cone is clearly visible at the bottom of the picture. The bright emission nebula is also known as the Chrristmas Tree. This image captures the top half of the (upside down) Christmas Tree, with the cone at it's tip. The image has been displayed at half size (13.6 arcseconds per pixel)
CCD Camera
Telescope
Mount
ST10xm
250mm F4.8 Newtonian Reflector with MPCC coma corrector
Astro-Physics AP1200 GTO
Date
Exposure
Software
10th February 2010
17 x 180s unguided. (51 minutes in total) Ha 12nm Astronomik filter
MaximDL, CCDStack, PixInsight