HD 223229
From Infogalactic: the planetary knowledge core
| 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
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