HD 223229
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 47m 33.04940s[1] |
| Declination | +46° 49′ 57.2178″[1] |
| Apparent magnitude (V) | 6.07[2] |
| Characteristics | |
| Spectral type | B3IV[3] |
| U−B color index | −0.66[2] |
| B−V color index | −0.14[2] |
| Astrometry | |
| Radial velocity (Rv) | −9.3±2.2[4] km/s |
| Proper motion (μ) | RA: +1.03±0.35[1] mas/yr Dec.: −6.64±0.45[1] mas/yr |
| Parallax (π) | 3.13 ± 0.57[1] mas |
| Distance | approx. 1,000 ly (approx. 320 pc) |
| Details | |
| Mass | 6.31±0.49[5] M☉ |
| Luminosity (bolometric) | 1,762[5] L☉ |
| Temperature | 17,900[5] K |
| Rotational velocity (v sin i) | 30[6] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 223229 is a suspected variable star in the northern constellation of Andromeda. It is a double star consisting of a magnitude 6.11 primary and a magnitude 8.73 companion. The pair have an angular separation of 0.80″ along a position angle of 250°, as of 2009.[7] The primary is a B-type subgiant star with a stellar classification of B3IV.[3] It has an estimated 6.3 times the mass of the Sun, with an effective temperature of 17,900 K.[5]
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
- 1 2 3 Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series 34: 1–49, Bibcode:1978A&AS...34....1N
- 1 2 Lesh, Janet Rountree (December 1968), "The Kinematics of the Gould Belt: an Expanding Group?", Astrophysical Journal Supplement 17: 371, Bibcode:1968ApJS...17..371L, doi:10.1086/190179
- ↑ 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 3 4 Hohle, M. M.; et al. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten 331 (4): 349, arXiv:1003.2335, Bibcode:2010AN....331..349H, doi:10.1002/asna.200911355
- ↑ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (July 2002), "Rotational Velocities of B Stars", The Astrophysical Journal 573 (1): 359–365, Bibcode:2002ApJ...573..359A, doi:10.1086/340590
- ↑ Mason, B. D.; et al. (2014), The Washington Visual Double Star Catalog, Bibcode:2001AJ....122.3466M, retrieved 2015-07-22
External links
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