NGC 5020
Galaxy in the constellation Virgo
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NGC 5020 is a barred spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 3,663±21 km/s, which corresponds to a Hubble distance of 176.2 ± 12.4 Mly (54.02 ± 3.79 Mpc).[1] It was discovered by German-British astronomer William Herschel on 12 April 1784.[3][4]
| NGC 5020 | |
|---|---|
NGC 5020 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 13h 12m 39.8542s[1] |
| Declination | +12° 35′ 59.273″[1] |
| Redshift | 0.011214±0.00000700[1] |
| Heliocentric radial velocity | 3,362±2 km/s[1] |
| Distance | 176.2 ± 12.4 Mly (54.02 ± 3.79 Mpc)[1] |
| Group or cluster | NGC 5020 group (LGG 335)[2] |
| Apparent magnitude (V) | 12.5[1] |
| Characteristics | |
| Type | SAB(rs)bc[1] |
| Size | ~181,400 ly (55.62 kpc) (estimated)[1] |
| Apparent size (V) | 3.2′ × 2.7′[1] |
| Other designations | |
| IRAS 13102+1251, UGC 8289, MCG +02-34-003, PGC 45883, CGCG 072-024[1] | |
NGC 5020 is an active galaxy nucleus candidate, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[5]
NGC 5020 group
According to A.M. Garcia, NGC 5020 is the largest and brightest galaxy in a group of galaxies that bears its name, the NGC 5020 group (also known as LGG 335). The other two galaxies in the group are UGC 8253 and UGC 8255.[2][6]
Supernovae
Two supernovae have been observed in NGC 5020:
