The Cone Nebula
The Dark Cone Nebula in Monoceros. Located about 1 degree south of the Christmas Tree asterism. It's position is at the top of the tree.
Fainter than the Horse head in Orion. I doubt if it's visible, except photographically by film or CCD.
See Burnham' Page 1208 for more information.
Imaged with a ST-6 camera, Tri-colour RGB of 3-3-6 minutes. Taken at Star Hill Inn October 1996.