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NGC 5474, Spiral Galaxy type SA(s)c Pec in Ursa Major. Taken on the nights of May 21, May 22 and
May 24, 2007, with a DSI Pro II and Outback Cooler on a C8NGT (8" Newtonian f5). LRGB subframes
were 150 sec while the H-alpha subframes were 240 sec resulting in the following total exposures were
L:(R+Ha):G:B (min) = 140:(63+144):60:63. Color balance was achieved via numerically scaled channels.
Captured with Envisage, calibrated and sigma combined in Iris with other processing using FITZ,
PixInsight LE and Photoshop CS. North is up.
Copyright © J.Shuder
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