HD 221776
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 34m 46.742s[1] |
| Declination | +38° 01′ 26.39″[1] |
| Apparent magnitude (V) | 6.18[2] |
| Characteristics | |
| Spectral type | K5III[2] |
| U−B color index | 1.97 |
| B−V color index | 1.586[2] |
| Astrometry | |
| Radial velocity (Rv) | -12.4 km/s |
| Proper motion (μ) | RA: 10.37 ± 0.32[1] mas/yr Dec.: 10.59 ± 0.23[1] mas/yr |
| Parallax (π) | 4.30 ± 0.33[1] mas |
| Distance | 760 ± 60 ly (230 ± 20 pc) |
| Absolute magnitude (MV) | -0.68[2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 221776 is a double star.
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
- ↑ 2.0 2.1 2.2 2.3 Jasniewicz, G. et al. (February 1999), "Late-type giants with infrared excess. I. Lithium abundances", Astronomy and Astrophysics 342: 831–838, Bibcode:1999A&A...342..831J
External links
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