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Details:
Picture taken Dec 25, 2014, 12:01AM-12:47AM CST, Austin, TX.
Setup: Panasonic FZ200 mounted on iOptron SkyTracker.
Exposures: 108mm FL (600mm EFL), f/2.8, 60x20sec=20 min, ISO 400.
Stacked in comet mode in DeepSkyStacker and postprocessed in Paint Shop Pro X2.
The subs were taken from NW Austin looking back into the city glare. The sky was very transparent but with a lot of city light glow. The comet, in the constellation Columba at an altitude of 28*, crossed the meridian about 12:15am CST. It was conspicuous in 15x50 image-stabilized binoculars as a notably large, tailless ball of light. It was also detected in 7x35's. In fact, the only deep-sky objects in the same area as readily visible in the 15x50's were the Orion Nebula and the open cluster M41 in CMa. The two nearby globular clusters that one might think to compare it to were either starlike (M79 in Lep) or invisible (NGC 1851 in Col), so it is far larger and brighter than either.
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