NGC 7822

Posted by on Jun 26, 2016

NGC 7822

NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800-1000 pc distant, with the younger components aged no more than a few million years.

Raw images:
Ha: 4 x 10min  (Tot: 40min) Bin:2x2
OIII: 2 x 10min  (Tot: 20min) Bin:3x3
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, OIII 5nm, SII 5nm

Valla Observatory (FROSON, Sweden)November 21, 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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