NGC 4495
NGC 4495 imaged by the Cerro Tololo Inter-American Observatory
Observation data (J2000 epoch)
Constellation	Coma Berenices
Right ascension	12h 31m 22.9217s[1]
Declination	+29° 08′ 11.472″[1]
Redshift	0.015243[1]
Heliocentric radial velocity	4570 ± 3 km/s[1]
Distance	233.3 ± 16.4 Mly (71.54 ± 5.02 Mpc)[1]
Apparent magnitude (V)	13.3[1]
Characteristics
Type	Sab[1]
Size	~104,000 ly (31.89 kpc) (estimated)[1]
Apparent size (V)	1.4′ × 0.8′[1]
Other designations
IRAS 12289+2924, 2MASX J12312290+2908109, UGC 7663, MCG +05-30-012, PGC 41438, CGCG 159-009[1]

NGC 4495 is a spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is 4850 ± 20 km/s, which corresponds to a Hubble distance of 233.3 ± 16.4 Mly (71.54 ± 5.02 Mpc).^[1] Additionally, 31 non-redshift measurements give a distance of 223.50 ± 3.58 Mly (68.526 ± 1.099 Mpc).^[2] It was discovered by German-British astronomer William Herschel on 13 March 1785.^[3]

According to the SIMBAD database, NGC 4495 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.^[4]

Supernovae

Three supernovae have been observed in NGC 4495:

• SN 1994S (Type Ia, mag. 14.5) was discovered by Larry Mitchell on 4 June 1994.^[5][6]
• SN 2010lo (type unknown, mag. 17.3) was discovered by the La Sagra Sky Survey on 15 December 2010.^[7][8]
• SN 2011ca (Type Ic, mag. 17.2) was discovered by Fabrizio Ciabattari and E. Mazzoni on 26 April 2011.^[9][10]

See also

• List of NGC objects (4001–5000)

References

External links

• Media related to NGC 4495 at Wikimedia Commons
• NGC 4495 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images