ET Andromedae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 17m 56.01s[1] |
| Declination | +45° 29′ 20.1″[1] |
| Apparent magnitude (V) | 6.48 |
| Characteristics | |
| Spectral type | B9pSi |
| U−B color index | 1.96 |
| B−V color index | 1.58 |
| Variable type | Alpha² CVn |
| Astrometry | |
| Radial velocity (Rv) | -2 km/s |
| Proper motion (μ) | RA: 24.78 ± 0.29[1] mas/yr Dec.: -10.09 ± 0.31[1] mas/yr |
| Parallax (π) | 5.56 ± 0.44[1] mas |
| Distance | 590 ± 50 ly (180 ± 10 pc) |
| Absolute magnitude (MV) | 6.451 |
| Other designations | |
| Database references | |
| SIMBAD | data |
ET Andromedae is a Alpha² Canum Venaticorum variable star in the constellation of Andromeda.[2]
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
- ↑ Watson, Christopher (4 February 2010). "ET Andromedae". AAVSO Website. American Association of Variable Star Observers. Retrieved 5 November 2014.
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