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9 - 6 min. subs @ ISO800. TEC-140 with the AP 27TVPH .75x reducer, f/5.4 (760mm), Nikon D50
(modified), Baader uv/ir filter. 9 darks, 9 bias frames, one flat.
Temperature appox. 45 deg. F. Cropped.
20080207_NGC3718-Comb-adj_Neat-crop.jpg
All images copyright William J. Shaheen, unless otherwise noted. Do not use or distribute without prior consent.