HD 222109
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 37m 32.043s[1] |
| Declination | +44° 25′ 44.37″[1] |
| Apparent magnitude (V) | 5.817 |
| Characteristics | |
| Spectral type | B8V |
| U−B color index | -0.31 |
| B−V color index | -0.06 |
| Astrometry | |
| Radial velocity (Rv) | -11 km/s |
| Proper motion (μ) | RA: 14.20 ± 0.30[1] mas/yr Dec.: -17.63 ± 0.45[1] mas/yr |
| Parallax (π) | 4.04 ± 0.52[1] mas |
| Distance | approx. 800 ly (approx. 250 pc) |
| Absolute magnitude (MV) | 5.753 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 20,000 L☉ |
| Temperature | 10,000–30,000 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 222109 is a double or multiple 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
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