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: −41.16±0.27[1] mas/yr Dec.: +40.41±0.29[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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