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M83 - Spiral Galaxy in Hydra (1st May 2026)

Messier 83 or M83 is a barred spiral galaxy approximately 15 million light-years away in the constellation borders of Hydra and Centaurus.

Nicolas-Louis de Lacaille discovered M83
on 17 February 1752 at the Cape of Good Hope. Charles
Messier added it to his catalogue of nebulous objects (now known
as the Messier Catalogue) in March 1781. It is one of the closest
and brightest barred spiral galaxies in the sky and is visible with binoculars. It has a diameter of 118,000 light-years.

M83 has been a prolific producer of supernovae, with six observed in the past century. The high SN rate is indicative of an exceptionally high rate of star formation coinciding with its
classification as a starburst galaxy. Some evidence suggests that a small galaxy merged with M83 in its distant past.

Image credit: CTIO/NOIRLab/DOE/NSF/AURA