HD 161988
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 17h 57m 41.687s[1] |
| Declination | −76° 10′ 40.62″[1] |
| Apparent magnitude (V) | 6.072 |
| Characteristics | |
| Spectral type | K2III |
| U−B color index | 1.28 |
| B−V color index | 1.2 |
| Astrometry | |
| Radial velocity (Rv) | 37 km/s |
| Proper motion (μ) | RA: 1.97 ± 0.28[1] mas/yr Dec.: −1.73 ± 0.27[1] mas/yr |
| Parallax (π) | 5.38 ± 0.31[1] mas |
| Distance | 610 ± 30 ly (190 ± 10 pc) |
| Absolute magnitude (MV) | 7.296 |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 161988 is star in double system.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 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
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