HD 82785
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Antlia |
Right ascension | 09h 33m 07.68056s[1] |
Declination | −39° 07′ 44.6538″[1] |
Apparent magnitude (V) | 6.43[2] |
Characteristics | |
Spectral type | F2IV/V[3] |
B−V color index | +0.33[2] |
Astrometry | |
Radial velocity (Rv) | 25.1[4] km/s |
Proper motion (μ) | RA: ±0.27 −41.16[1] mas/yr Dec.: ±0.29 +40.41[1] mas/yr |
Parallax (π) | 13.34 ± 0.37[1] mas |
Distance | 244 ± 7 ly (75 ± 2 pc) |
Details | |
Mass | 1.68[5] M☉ |
Surface gravity (log g) | 3.88[5] cgs |
Temperature | 6,869[5] K |
Metallicity [Fe/H] | –0.06[5] dex |
Rotational velocity (v sin i) | 36[6] km/s |
Age | 1.50[5] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HD 82785 is star in the southern constellation of Antlia.
References
- 1 2 3 4 5 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:10.1051/0004-6361:20078357Vizier catalog entry
- 1 2 Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J
- ↑ Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1982MSS...C03....0H
- ↑ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- 1 2 3 4 5 Casagrande, L.; et al. (2011). "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey". Astronomy & Astrophysics. 530 (A138): 21. arXiv:1103.4651. Bibcode:2011A&A...530A.138C. doi:10.1051/0004-6361/201016276.
- ↑ Royer, F.; et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224
External links
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