NGC 4790

NGC 4790
NGC 4790 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Virgo
Right ascension	12h 54m 51.956s[1]
Declination	−10° 14′ 52.2″[1]
Redshift	0.004483[1]
Heliocentric radial velocity	1344 ± 5 km/s[1]
Distance	80.8 ± 5.8 Mly (24.76 ± 1.77 Mpc)[1]
Group or cluster	NGC 4699 Group
Apparent magnitude (V)	12.4
Characteristics
Type	SB(rs)c?[1]
Size	~45,500 ly (13.95 kpc) (estimated)[1]
Apparent size (V)	1.55′ × 1.0′[1]
Other designations
IRAS 12522-0958, MCG -02-33-056, PGC 43972[1]

NGC 4790 is a barred spiral galaxy located in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 1679 ± 24 km/s, which corresponds to a Hubble distance of 80.8 ± 5.8 Mly (24.76 ± 1.77 Mpc).^[1] In addition, six non-redshift measurements give a distance of 74.75 ± 4.07 Mly (22.917 ± 1.249 Mpc).^[2] It was discovered on 25 March 1786 by German-British astronomer William Herschel.^[3]

NGC 4790 is a member of the NGC 4699 Group (also known as LGG 307) of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.^[4][5]

One supernova has been observed in NGC 4790. SN 2012au (type Ib, mag. 13.8) was discovered by the Catalina Sky Survey on 14 March 2012.^[6][7] This supernova later produced evidence of a pulsar wind nebula which appears to be expanding outward at approximately 2300 km/s. ^[8]

• List of NGC objects (4001–5000)
• Extragalactic astronomy
• List of galaxies
• List of NGC objects
• New General Catalogue

• Media related to NGC 4790 at Wikimedia Commons
• NGC 4790 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
• SIMBAD entry
• NASA Extragalactic Database entry
• Messier45 entry Archived 2018-09-23 at the Wayback Machine
• VizieR

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