M83 (NGC 5236) - Southern Pinwheel Galaxy
Messier 83 (NGC 5236), also known as the Southern Pinwheel Galaxy, is a barred spiral galaxy located in the constellation Hydra in the Centaurus A Group of galaxies. M83 is 14,700,000 light years away from Earth.
M83 is best viewed during mid-summer, is magnitude 7.5, and can be viewed with binoculars. M83 is 13' x 11.5' in apparent size. For reference, the full moon is 30' (arc minutes) in size.
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.