HD 110458
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 12h 42m 35.45s[1] |
| Declination | −48° 48′ 47.2″[1] |
| Apparent magnitude (V) | +4.66[2] |
| Characteristics | |
| Spectral type | K0III[3][4] |
| U−B color index | +1.01 |
| B−V color index | +1.09 |
| Absolute magnitude (MV) | +0.99±0.028[5] |
| Details | |
Gyr | |
| Database references | |
| SIMBAD | data |
HD 110458 is a singlelight years from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −12 km/s.[2] Based on its space motion, in 1972 O. J. Eggen listed it as a probable member of the Hyades group.[10]
The stellar classification of HD 110458 is K0III,[3][4] which indicates this is an aging giant star that has exhausted the supply of hydrogen at its core. It is estimated to be 2.6[6] billion years old with 1.7[6] times the mass of the Sun and has expanded to 11.6[7] times the girth of the Sun. The star is radiating 61[7] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,682 K.[6]
References
- ^ S2CID 18759600.
- ^ S2CID 119257644.
- ^ Bibcode:1978mcts.book.....H.
- ^ doi:10.1086/300813.
- ^ S2CID 119187733.
- ^ S2CID 118505114, 88.
- ^ .
- ^ "HD 110458". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-01-28.
- S2CID 14878976.
- doi:10.1086/129303.
