9 Andromedae
For the galaxy, see Andromeda IX.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 18m 23.32s[1] |
| Declination | +41° 46′ 25.2″[1] |
| Apparent magnitude (V) | 5.997 |
| Characteristics | |
| Spectral type | A7m |
| U−B color index | 0.17 |
| B−V color index | 0.21 |
| Variable type | Beta Lyrae |
| Astrometry | |
| Radial velocity (Rv) | -3.9 km/s |
| Proper motion (μ) | RA: -9.52 ± 0.36[1] mas/yr Dec.: 11.26 ± 0.43[1] mas/yr |
| Parallax (π) | 7.72 ± 0.51[1] mas |
| Distance | 420 ± 30 ly (130 ± 9 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
9 Andromedae (abbreviated 9 And) is a variable star in the constellation Andromeda. 9 Andromedae is the Flamsteed designation. It also bears the Variable star designation AN Andromedae (AN And). Its apparent magnitude is 5.98.
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:10.1051/0004-6361:20078357.Vizier catalog entry
External links
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