Messier 83 or M83, also known as the Southern Pinwheel Galaxy and NGC 5236, is a barred spiral galaxy[7] approximately 15 million light-years away in the constellation borders of Hydra and Centaurus. Nicolas-Louis de Lacaille discovered M83 on 23 February 1752 at the Cape of Good Hope.[8] Charles Messier added it to his catalogue of nebulous objects (now known as the Messier Catalogue) in March 1781.

Lum-41x6m, R-26x6m, G-25x6m, B-21x6m, Ha-12x6m
Image data taken with the "Bunyip 12.5" Newtonian Astrograph / STL11000M / Paracorr / Paramount ME