HD 213429
Binary star system in the constellation Aquarius
From Wikipedia, the free encyclopedia
HD 213429 is a spectroscopic binary[6] system in the equatorial constellation of Aquarius. It has a combined apparent magnitude of 6.16 and is located around 83 light years away. The pair orbit each other with a period of 631 days,[6] at an average separation of 1.74 AU and an eccentricity of 0.38.[8]
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Aquarius[1] |
| Right ascension | 22h 31m 18.31271s[2] |
| Declination | −06° 33′ 18.5437″[2] |
| Apparent magnitude (V) | 6.160[3] |
| Characteristics | |
| Spectral type | F8V[4] |
| U−B color index | +0.03[5] |
| B−V color index | +0.55[5] |
| Astrometry | |
| Radial velocity (Rv) | −9.9±6.3[3] km/s |
| Proper motion (μ) | RA: +161.61[2] mas/yr Dec.: −108.40[2] mas/yr |
| Parallax (π) | 39.35±0.70 mas[2] |
| Distance | 83 ± 1 ly (25.4 ± 0.5 pc) |
| Absolute magnitude (MV) | 4.13[3] |
| Details | |
| HD 213429 A | |
| Mass | 1.18[6] M☉ |
| Surface gravity (log g) | 4.10[4] cgs |
| Temperature | 6,001[4] K |
| Metallicity [Fe/H] | −0.23[4] dex |
| Rotational velocity (v sin i) | 6[7] km/s |
| Age | 3.7[3] Gyr |
| HD 213429 B | |
| Mass | 0.78[6] M☉ |
| Other designations | |
| BD−07°5797, HD 213429, HIP 111170, HR 8581, GJ 862.1, GJ 9786, LTT 9053, SAO 146135 | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
