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Technical card

Imaging telescopes or lenses: Canon 200 mm f/2.8 L II USM

Imaging cameras: Canon XSi Digital Rebel

Mounts: AP1200DA Stepper Version

Software: O'Telescope BackyardEOS

Resolution: 4272x2848

Dates: Feb. 4, 2013

Frames: 50x30"

Integration: 0.4 hours

Avg. Moon age: 22.60 days

Avg. Moon phase: 45.25%

RA center: 83.854 degrees

DEC center: -5.406 degrees

Pixel scale: 5.499 arcsec/pixel

Orientation: 89.578 degrees

Field radius: 3.920 degrees


10 shots ea of 1/2, 5 and 15 seconds, plus 20 at 30 seconds. Stacked with Registax, very slight sharpen and levels in PS.


License: None (All rights reserved) Nov. 2, 2013

Sky plot

Sky plot


M42  Orion's Belt, milliesand

Made possible by

O'Telescope BackyardEOS