Messier 83

Messier 83
Messier 83
	Messier 83 imaged by the Víctor M. Blanco Telescope in 2024
Observation data (J2000 epoch)
Constellation	Hydra
Right ascension	13h 37m 00.919s
Declination	−29° 51′ 56.74″
Redshift	0.001721±0.000013
Heliocentric radial velocity	508 km/s
Distance	14.7 Mly (4.50 Mpc)
Apparent magnitude (V)	7.6
Characteristics
Type	SAB(s)c
Size	36.24 kiloparsecs (118,000 light-years); (diameter; 26.0 mag/arcsec2 B-band isophote)
Apparent size (V)	12′.9 × 11′.5
Other designations
	Southern Pinwheel Galaxy, ESO 444- G 081, IRAS 13341-2936, NGC 5236, UGCA 366, MCG -05-32-050, PGC 48082

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 17 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.^[8]

It is one of the closest and brightest barred spiral galaxies in the sky, and is visible with binoculars.^[9] It has an isophotal diameter at about 36.24 kiloparsecs (118,000 light-years). Its nickname of the Southern^[a] Pinwheel derives from its resemblance to the Pinwheel Galaxy (M101).

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[4] "Messier 83". SEDS Messier Catalog. Retrieved 30 April 2022.

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Messier 83

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