NGC 5123

NGC 5123 is a spiral galaxy in the constellation of Canes Venatici. Its velocity with respect to the cosmic microwave background is 8,487±14 km/s, which corresponds to a Hubble distance of 408.3 ± 28.6 Mly (125.18 ± 8.76 Mpc).^[1] It was discovered by German-British astronomer William Herschel on 9 April 1787.^[2]

ConstellationCanes Venatici

Right ascension13^h 23^m 10.5284^s[1]

Declination+43° 05′ 10.750″^[1]

Redshift0.027658±0.00000900^[1]

Quick facts Observation data (J2000 epoch), Constellation ...

NGC 5123
NGC 5123 imaged by Pan-STARRS
Observation data (J2000 epoch)
Constellation	Canes Venatici
Right ascension	13h 23m 10.5284s[1]
Declination	+43° 05′ 10.750″[1]
Redshift	0.027658±0.00000900[1]
Heliocentric radial velocity	8,292±3 km/s[1]
Distance	408.3 ± 28.6 Mly (125.18 ± 8.76 Mpc)[1]
Apparent magnitude (V)	13.6g[1]
Characteristics
Type	Scd[1]
Size	~172,200 ly (52.81 kpc) (estimated)[1]
Apparent size (V)	1.20′ × 1.11′[1]
Other designations
IRAS 13209+4320, 2MASX J13231050+4305108, UGC 8415, MCG +07-28-005, PGC 46767, CGCG 218-006[1]

Close

NGC 5123 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.^[3][4]