HD 165259
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 18h 12m 34.051s[1] |
| Declination | −73° 40′ 20.70″[1] |
| Apparent magnitude (V) | 5.85[2] |
| Characteristics | |
| Spectral type | F5V[3] |
| U−B color index | +0.05[2] |
| B−V color index | +0.46[2] |
| Astrometry | |
| Radial velocity (Rv) | +13.1[4] km/s |
| Proper motion (μ) | RA: −55.44±0.32[1] mas/yr Dec.: −262.62±0.39[1] mas/yr |
| Parallax (π) | 23.73 ± 0.46[1] mas |
| Distance | 137 ± 3 ly (42.1 ± 0.8 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 165259 is visual binary star[3] system in the southern constellation of Apus.
References
- 1 2 3 4 5 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752
, doi:10.1051/0004-6361:20078357 - 1 2 3 Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series, 34: 1–49, Bibcode:1978A&AS...34....1N
- 1 2 Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H
- ↑ 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.
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