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adam stuart | all galleries >> Galleries >> globular_star_clusters > globular m53.jpg
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4-30-05 0300UT Adam Stuart

globular m53.jpg

Miami, FL

Globular Star Cluster M53

Starlight Xpress HX916; 2.84 arc-sec/pix
Stellarvue Nighthawk piggybacked unguided on LX200; Astronomik clear Type II IR-blocked filter; Luminance = 34 x 60 seconds, unbinned 1x1. Twilight flat field and matching darks; sigma combined in Ray Gralak's Sigma Pre-beta-11. full exif

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