HD 92845
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Antlia |
| Right ascension | 10h 42m 43.187s[1] |
| Declination | −32° 42′ 56.42″[1] |
| Apparent magnitude (V) | 5.627 |
| Characteristics | |
| Spectral type | A0V[2] |
| Astrometry | |
| Radial velocity (Rv) | 4 km/s |
| Proper motion (μ) | RA: −31.39 ± 0.61[1] mas/yr Dec.: 0.03 ± 0.59[1] mas/yr |
| Parallax (π) | 5.34 ± 0.72 mas[1] |
| Distance | approx. 610 ly (approx. 190 pc) |
| Absolute magnitude (MV) | −0.76±0.28[2] |
| Details | |
| Mass | 3.16±0.17[2] M☉ |
| Radius | 5.00[2] R☉ |
| Luminosity | 162.70[3] L☉ |
| Surface gravity (log g) | 3.54±0.10[2] cgs |
| Temperature | 8893[3] K |
| Rotational velocity (v sin i) | 131[2] km/s |
| Age | 282[2] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 92845 is a star in double system in the constellation Antlia. Located around 1228 light-years distant, it shines with a luminosity approximately 162 times that of the Sun and has a surface temperature of 8893 K.[3]
References
- ^ a b c d e van Leeuwen, F. (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.Vizier catalog entry
- ^ a b c d e f g Gerbaldi, M.; et al. (June 1999), "Search for reference A0 dwarf stars: Masses and luminosities revisited with HIPPARCOS parallaxes", Astronomy and Astrophysics Supplement, 137 (2): 273–292, Bibcode:1999A&AS..137..273G, doi:10.1051/aas:1999248.
- ^ a b c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
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