Horsehead Nebula G3
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:1x1
SII: 2 x 10min (Tot: 20min) Bin:2x2
Seeing: 3"
Equipment used:
ASA N12 Astrograph F/3.6
3" Wynne Corrector 0.95x
Moravian G3 16200 camera @-25C
No guiding
Filter:
Astrodon Ha 3nm, SII 5nm
Location/Date:
Valla Observatory (FROSON, Sweden)November 27, 2016
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 images, more data need to be captured
Image palette:
RGB palette. Ha - Red, SII+Ha - Blue, SII+Ha - Green
Luminance - Ha
Image information:
Scale: 1.14 arcsec/pix
FOW: 86x70 arcmin
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