HD 224801
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 00h 00m 43.63s[1] |
| Declination | +45° 15′ 12.0″[1] |
| Apparent magnitude (V) | 6.35[2] |
| Characteristics | |
| Spectral type | B9p...[2] |
| B−V color index | -0.05[2] |
| Variable type | Alpha² CVn variable |
| Astrometry | |
| Radial velocity (Rv) | −1.00 ± 2.2[3] km/s |
| Proper motion (μ) | RA: 17.45 ± 0.22[1] mas/yr Dec.: −0.01 ± 0.21[1] mas/yr |
| Parallax (π) | 5.32 ± 0.32[1] mas |
| Distance | 610 ± 40 ly (190 ± 10 pc) |
| Absolute magnitude (MV) | −0.03 |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 224801, also known as CG Andromedae, is an Alpha2 Canum Venaticorum variable star in the constellation Andromeda.[4] Located approximately 188 parsecs (610 ly) away, the star varies between apparent magnitudes 6.32 and 6.42 over a period of approximately 3.74 days.[4]
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
- 1 2 3 "CG Andromedae". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 9 October 2014.
- ↑ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- 1 2 VSX (4 January 2010). "CG Andromedae". AAVSO Website. American Association of Variable Star Observers. Retrieved 9 October 2014.
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