| NGC 4999 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 13h09m 33.131s[1] |
| Declination | 01° 40′ 23.01″[1] |
| Redshift | 0.01879[1] |
| Heliocentric radial velocity | 5633 ± 2 km/s[1] |
| Distance | 257 Mly (78.7 Mpc)[2] |
| Apparent magnitude (B) | 13.5 |
| Characteristics | |
| Type | SB(r)b[1] |
| Apparent size (V) | 2.3' × 1.9' |
| Other designations | |
| UGC 8236, MCG +00-34-010, PGC 45632[1] | |
NGC 4999 is a barred spiral galaxy located in the constellation Virgo, first discovered February 24, 1786 by astronomer William Herschel.[3] The galaxy is noted as a particularly bright ultraviolet light source – it is believed that its notable bar structure suppresses star formation,[4] indicating this ultraviolet light may possibly be due to a quasi-stellar object.[5]
