NGC 5061
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Right ascension13h 18m 05.1444s[1]
Declination−26° 50′ 14.149″[1]
| NGC 5061 | |
|---|---|
 NGC 5061 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 13h 18m 05.1444s[1] |
| Declination | −26° 50′ 14.149″[1] |
| Redshift | 0.006945±0.0000630[1] |
| Heliocentric radial velocity | 2,082±19 km/s[1] |
| Distance | 78.54 ± 3.36 Mly (24.080 ± 1.031 Mpc)[1] |
| Group or cluster | NGC 5061 group (LGG 341) |
| Apparent magnitude (V) | 11.44[1] |
| Characteristics | |
| Type | E0[1] |
| Size | ~178,100 ly (54.61 kpc) (estimated)[1] |
| Apparent size (V) | 3.5′ × 3.0′[1] |
| Other designations | |
| ESO 508- G 038, MCG -04-31-048, PGC 46330[1] | |
NGC 5061 is an elliptical galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background is 2,383±28 km/s, which corresponds to a Hubble distance of 114.6 ± 8.2 Mly (35.14 ± 2.51 Mpc).[1] However, 25 non-redshift measurements give a closer mean distance of 78.54 ± 3.36 Mly (24.080 ± 1.031 Mpc).[2] It was discovered by German-British astronomer William Herschel on 28 March 1786.[3][4]
NGC 5061 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[5]
Supernovae
Two supernovae have been observed in NGC 5061:
- SN 1996X (Type Ia, mag. 13) was discovered by Robert Evans and Kesao Takamizawa on 12 April 1996.[7][8] At magnitude 13, it was the brightest supernova of 1996.[9]
- SN 2005cn (Type Ia, mag. 14.6) was discovered by the Brazilian Supernovae Search Team (BRASS) on 19 June 2005.[10][11]
