By Sudhir Sharma | 2026-05-12
M83, The Southern Pinwheel Galaxy
On 05/11/2026 11:30 pm by Steven Bellavia | Website | Smithfield, VA
Even down here in southern Virginia, M83, the southern pinwheel galaxy, only reaches an altitude of 22 degrees so this is a a challenging object to capture.
M83, NGC 5236, the Southern Pinwheel Galaxy, is a barred spiral galaxy in the constellation borders of Hydra and Centaurus. Nicolas-Louis de Lacaill discovered it on 17 February 1752, at the Cape of Good Hope. Charles Messier added it to his catalogue in March 1781.
At 15 million light-years away, it is one of the closest and brightest barred spiral galaxies in the sky, visible even with binoculars.
Telescope: TS-Optics Photoline 115mm, f/7 triplet refractor
Reducer-corrector: TS-Optics Photoline 3-inch, 0.79X, which brings the scope to f/5.6, 640mm focal length
Camera: ZWO ASI 533MC Pro, cooled to -5C
Mount: Sky-Watcher EQ6-R Pro
57 x 3-minute exposures, along with dark, flats and dark-flat calibration frames, calibrated, aligned, integrated and processed in PixInsight