HD 110073
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 12h 39m 52.52839s[1] |
| Declination | −39° 59′ 14.2906″[1] |
| Apparent magnitude (V) | +4.63 |
| Characteristics | |
| Spectral type | B8II/III |
| U−B color index | −0.42 |
| B−V color index | −0.08 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +15 km/s |
| Proper motion (μ) | RA: −43.38[1] mas/yr Dec.: −25.25[1] mas/yr |
| Parallax (π) | 8.94 ± 0.24[1] mas |
| Distance | 365 ± 10 ly (112 ± 3 pc) |
| Absolute magnitude (MV) | −0.71[2] |
| Details | |
| HD 110073 A | |
| Mass | 4.0 ± 0.2[2] M☉ |
| Luminosity | 385[2] L☉ |
| Temperature | 12,900[2] K |
| Age | 129[2] Myr |
| HD 110073 B | |
| Mass | 1.13[2] M☉ |
| Luminosity | 1.2[2] L☉ |
| Temperature | 5,662[2] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 110073 (Bayer designation l Cen / l Centauri) is a star in the constellation Centaurus. It is a blue-white B-type bright giant with an apparent magnitude of +4.63 and is approximately 365 light years from Earth.
This is a single-lined spectroscopic binary star system that belongs to the Pleiades group.[2]
References
- 1 2 3 4 5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357
- 1 2 3 4 5 6 7 8 9 Hubrig, S.; et al. (June 2001), "Search for low-mass PMS companions around X-ray selected late B stars", Astronomy and Astrophysics 372: 152–164, arXiv:astro-ph/0103201, Bibcode:2001A&A...372..152H, doi:10.1051/0004-6361:20010452
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Monday, December 29, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.