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Imaging telescopes or lenses: Canon EF 20mm f/2.8
Imaging cameras: Canon EOS 600D / Rebel T3i
Mounts: Vanguard Photo Tripod
Software: DeepSkyStacker, photoshop
Filters: Astronomik CLS Clip-Filter
Resolution: 5470x3925
Dates: May 19, 2012
Frames: 25x20"
Integration: 0.1 hours
Avg. Moon age: 27.75 days
Avg. Moon phase: 3.55%
RA center: 23:38:10.389
DEC center: +61:04:18.023
Pixel scale: 43.65 arcsec/pixel
Orientation: 86.38 degrees
Field width: 60.22 degrees
Field height: 45.10 degrees
Stacked image of Cassiopea (Adobe CS5.1 Extended -- curves) taken on 19.MAY.2012 at 04:27 (EDT). Outside temp 57°f. Twenty-five (20 sec) exposures (20 lites and 5 darks) taken with a Canon T3i (600D) using a 20mm lens (ISO-1600) at f/2.8 (auto white balance), with Astronomik CLS (clip) filter. Allegan County, MI, USA. ©2012, a.d.jacobsen.
