Horsehead Nebula

Posted by on Jul 9, 2016

Horsehead Nebula

The Horsehead Nebula (also known as Barnard 33) is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex.

Raw images:
Ha: 5 x 10min  (Tot: 50min) Bin:2x2
SII: 2 x 10min  (Tot: 20min) Bin:3x3
Seeing: 3"

Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Corrector 0.95x
Atik 490 EX camera @-20C
No guiding

Astrodon Ha 3nm, SII 5nm

Valla Observatory (FROSON, Sweden)December 27, 2015

Image processing:
Images calibrated and processed in AstroPix and Photoshop 
Curves and levels in AstroPix
Color image with Photoshop
Note: Very weak signal in the SII and OIII images, more data need to be captured

Image palette:
RGB palette. Ha - Red, SII - Blue, OIII - Green
Luminance - Ha

 Image information:
Scale: 0.92 arcsec/pix
FOW: 52x42 arcmin

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