HD 92845
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]
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[1] mas |
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 |
References
- 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
- 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.
- 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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