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I agreeImaging telescope or lens:Canon 200 mm f/2.8 L II USM
Imaging camera:Canon 6D
Mount:iOptron SkyTracker
Software:Lightroom CC
Dates:Dec. 8, 2015
Frames: 1x15"
Integration: 0.0 hours
Avg. Moon age: 26.76 days
Avg. Moon phase: 8.44%
Astrometry.net job: 876277
RA center: 14h 16' 37"
DEC center: -10° 17' 27"
Pixel scale: 12.178 arcsec/pixel
Orientation: 156.107 degrees
Field radius: 5.545 degrees
Resolution: 2048x2560
At last the weather was OK for seeing the C/2013 US10 Catalina. It's no Lovejoy nor Hale-Bopp, but quite nice little comet still.
Unfortunately my imaging session didn't go as smoothly as I'd liked. I think the previous time I did astrophotography with longer than 50mm lens must have been some time during the spring, so it wasn't too easy to shoot in windy sub-zero conditions, especially when the subject is just barely above the horizon! Lost quite a bit of data due to the 200mm lens being too warm and getting all kind of aberrations and misfocused shots.
But at least I got this single exposure which I'm happy with.
B version is a heavily stretched negative image to show the tail better.
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