B33 in IC434 - The Horsehead Nebula
Location :
Optics :
Filter(s) :
Mount :
Optics :
Filter(s) :
Mount :
Landgraaf
Orion Optics UK 10" f4.8 Newton + Paracorr
Baader UHC-S
Losmandy G-11
Autoguiding :
Camera :
Exposure info :
Total Exposure :
Camera :
Exposure info :
Total Exposure :
Atik 1HS, 60/700 Achro & Guidemaster
SBIG ST-8300M
28 x 360 sec
2h 48m
SBIG ST-8300M
28 x 360 sec
2h 48m
[ Other resolutions/versions - or click the image for maximum resolution available ]
Higher Resolution 1280 x 960 Pixel (152 kB)
Higher Resolution 1280 x 960 Pixel - Colorized (227 kB)
Maximum Resolution 1600 x 1200 Pixel (154 kB)
Additional notes and remarks:
Object info
The Horsehead Nebula (Barnard 33 (dark nebula) in IC 434 (bright nebula) can be found in the Orion constellation. It lies at approximately 1.500 light years from Earth, and is approx. 3.5 light years wide. The red glow comes from hydrogen gas mostly behind the nebula which is ionized by the bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust. Bright spots in the Horsehead Nebula's base are young stars which are in the process of forming.
Processing
All separate frames were calibrated, aligned and stacked in ImagesPlus 2.8.
Photoshop CS4 was used for further processing - curves adjustment, levels adjustment, etc. The image was calibrated using 10 min/max excluded darks, 15 (dark-subtracted) average combined flats. Noel Carboni's toolset was used as well (Local Contrast Enhancement)
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