North America nebula closeup

Posted by on Sep 1, 2015

North America nebula closeup

First collimation test om the scope for the coming season. A Close-up of the Noth American nebula in Cygnus. Made from raw uncalibrated images.

Raw images:
Ha: 1 x 10min  (Tot: 10 min) Bin:2x2
OIII: 1 x 10min  (Tot: 10 min) Bin:2x2
SII: 1 x 10min  (Tot: 10 min) Bin:2x2
Seeing: 3-4"

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)
August 30, 2015

Image processing:
Images calibrated and processed in AstroPix
No Calibration
Curves and levels in AstroPix
Color image with AstroPix
Noise removal with the AstroPix Noise removal tool.

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

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

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