Object: Horsehead Nebula Barnard 33 in IC434
The Horsehead Nebula is a dark nebula in the Orion constellation. The nebula is located just below Alnitak, the star furthest left on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. Approximately 1500 light years from Earth, it is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which is similar to that of a horse's head. The shape was first noticed in 1888 by Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory.

The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming. (from Wikipedia)
Size: 8'x6'
Magnitude: NA
Scope: AP 130mm EDT f/8, guided
Mount: AP Mach1GTO
Imager: CCD-Labs Q453
Exposure: 150M (30x5m)
Process: Nebulosity, ImagesPlus, & PS
Date: 12-29-2008
Location: Anderson Township, Ohio
File: Horsehead 30StdDev175 color corr PS.jpg