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Object
............................................ IC 434 - " Horshead
Nebula" (RGB)
Constellation .............................. Orion
Distance + Ap. Magnitude....... 1500 Light Years - 7.3
Date + Time ............................... 12 / 1/2012 -
23:00 UTC
Location ....................................
Remote imaging from Lightbuckets -
France / South Alpen
Optics .........................................
Planewave
17''
Tools .......................................... ACP
Camera .....................................
SBIG STL
11000M
Exposure Time.......................
RGB : 6 X 300 (each)
More Details ...........................
Environment Temperature : ---- Camera Temperature -30οC
Mount ....................................... Paramount
ME
Guiding ....................................
Off axis guided
Processing Details ................ Photoshop ,
Maxim , CCDsoft
Notes ........................................
Weather: - - Transparence: - - Humidity : - -
Target details .........................
The Horsehead Nebula (also known as
Barnard
33
in emission nebula IC
434) is a
dark nebula in the constellation
Orion.
The nebula is located just to the south of the star
Alnitak, which is furthest east on Orion's Belt, and is part of
the much larger
Orion Molecular Cloud Complex.
The Horsehead Nebula is 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 when viewed
from Earth. 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. |
