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M83 The Southern Pinwheel Galaxy
"Messier 83 (also known as the Southern Pinwheel Galaxy, M83 or NGC 5236) is a barred spiral galaxy approximately 15 million light-years away in the constellation Hydra. It is one of the closest and brightest barred spiral galaxies in the sky,"
I was pleasantly surprised how well the Ha regions came out with the modified Canon 1100D. This is a big improvement over my previous unmodified camera.
Captured over 4 nights for a total of 5.8 hours ( I was hoping for double figures but clouds had other ideas) - 696 x 30 second subs unguided on a HEQ5 Pro, GSO 10" F4 Newtonian, full spectrum modified Canon 1100D, Baader MPCC MKIII. Filters used were a baader Semi-Apo filter for some subs (gives Ha a kick) and Baader UV / IR cut filter for other subs. Stacked in DSS in 4 groups, processed in Photoshop. Taken from the backyard observatory.
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