| NGC 4694 | |
|---|---|
 NGC 4694 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 48m 15.0422s[1] |
| Declination | +10° 59′ 01.671″[1] |
| Redshift | 0.003869[2] |
| Heliocentric radial velocity | 1160 ± 2 km/s[2] |
| Distance | 71.3 ± 5.1 Mly (21.85 ± 1.57 Mpc)[2] |
| Group or cluster | LGG 292 |
| Apparent magnitude (V) | 13.36[1] |
| Apparent magnitude (B) | 13.93[1] |
| Characteristics | |
| Type | SB0 pec (HII)[2] |
| Size | ~29,000 ly (8.90 kpc) (estimated)[2] |
| Apparent size (V) | 3.3′ × 1.6′[2] |
| Other designations | |
| IRAS 12457+1115, UGC 7969, MCG +02-33-023, PGC 43241, CGCG 071-044[1] | |
NGC 4694 is a lenticular galaxy in the constellation Virgo. Its velocity with respect to the cosmic microwave background is 1481 ± 23 km/s, which corresponds to a Hubble distance of 71.3 ± 5.1 Mly (21.85 ± 1.57 Mpc).[2] However, six non redshift measurements give a distance of 28.51 ± 7.23 Mly (8.742 ± 2.218 Mpc).[3] The galaxy was discovered by William Herschel on March 15, 1784.[4]
According to the SIMBAD database, NGC 4694 has an Active Galaxy Nucleus, 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]
- ^ a b c d e "NGC 4694". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 June 2019.
- ^ a b c d e f g "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 5 June 2019.
- ^ "Distance Results for NGC 4694". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 28 September 2024.
- ^ Seligman, Courtney. "New General Catalog Objects: NGC 4650 - 4699". New General Catalog Objects: NGC 4650 - 4699. Retrieved 3 June 2019.
- ^ "NGC 4694". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 28 September 2024.