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adam stuart | all galleries >> Galleries >> nebulae_in_hydrogen_alpha_and_oiii > combined 2007 and 2009.jpg
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2007, 2009 adam stuart

combined 2007 and 2009.jpg

Miami, FL

Crescent Nebula

Deeper image achieved by combining 5 hours (2007 data) and 6 hours (2009 data)

SXV-H9,2.75 arc-sec/pixel
Stellarvue Nighthawk piggybacked on STV-guided LX200 at 1,575 mm, Astronomik 13 nm H-alpha filter,
28 x 760 seconds = 5.9 hours (2009) combined with 20 x 900 seconds = 5 hours (2007), unbinned 1x1. Acquired in Astroart 3.0, aligned in AIP4WIN, and sigma combined in Ray Gralak's pre-beta 11. Darks, Bias and Flats used. Aligned and registered each master image in Astroart 3.0, and combined 50:50 in Corel Photo Paint 8.0. full exif


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