Imaging telescopes or lenses: GSO Newton 8" f/4
Imaging cameras: Canon EOS 350D / Digital Rebel XT
Mounts: LXD75
Guiding telescopes or lenses: Bresser Skylux 70/700
Guiding cameras: Meade DSI
Software: DeepSkyStacker · PixInsight LE · PHD guiding · APT - Astro Photography Tool
Accessory: Teleskop-Service Coma Corrector
Dates:Dec. 23, 2011 , Dec. 26, 2011 , Jan. 19, 2012 , Jan. 22, 2012
Frames: 110x210" ISO400
Integration: 6.4 hours
Darks: ~16
Flats: ~11
Bias: ~100
Avg. Moon age: 21.06 days
Avg. Moon phase: 6.03%
Bortle Dark-Sky Scale: 6.00
Mean SQM: 18.95
Mean FWHM: 4.53
Temperature: 7.75
Astrometry.net job: 125843
RA center: 0h 52' 54"
DEC center: +56° 37' 40"
Pixel scale: 4.525 arcsec/pixel
Orientation: 175.906 degrees
Field radius: 0.906 degrees
Resolution: 620x413
Locations: Vallés - Valencia (Spain), Vallés, Valencia, Spain
Placed into constellation of Cassiopeia near star Shedir, NGC 281 is a emission nebula colloquially named as Pacman Nebula because your resemblance with character of this videogame. Discovered by Barnard at 1883. Furthermore, it contains the open cluster IC 1590 whose brightest star HD 5005 is a multiple system formed by 5 stars with a separation between 1.4 and 15.7 arcseconds.
More info into the Blog C O M E T O G R A F I A (in Spanish)
This image was the AAPOD on April 01, 2012
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