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9 - 8 min. subs @ ISO800. TEC-140, f/7 (980mm), Nikon D50
(modified), Baader uv/ir filter. 7 darks, 9 bias frames, no flats.
Temperature appox. 57 deg. F.
20080102_NGC1893-CombAdpAdd_Neat.jpg
All images copyright William J. Shaheen, unless otherwise noted. Do not use or distribute without prior consent.