| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 10m 33.74601s[1] |
| Declination | −04° 16′ 00.6776″[1] |
| Apparent magnitude (V) | 5.979[2] |
| Characteristics | |
| Spectral type | KG8/0III[3] |
| U−B color index | 0.84[4] |
| B−V color index | 0.981[3] |
| Astrometry | |
| Radial velocity (Rv) | −18.1[5] km/s |
| Proper motion (μ) | RA: +71.82[1] mas/yr Dec.: +3.74[1] mas/yr |
| Parallax (π) | 9.81 ± 0.44 mas[1] |
| Distance | 330 ± 10 ly (102 ± 5 pc) |
| Absolute magnitude (MV) | 1.30[3] |
| Details | |
| Mass | 2.4[3] M☉ |
| Surface gravity (log g) | 3.0[3][2] cgs |
| Temperature | 4,928[3][2] K |
| Metallicity [Fe/H] | 0.090±0.090[3][2] dex |
| Rotational velocity (v sin i) | 3.3[3] km/s |
| Age | 630[3] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 210434 is a subgiant star[3] in the equatorial constellation of Aquarius. According to the Bortle scale, an apparent magnitude of six means this star is faintly visible to the naked eye from dark rural skies. It is an estimated 630 million years old with 2.4 times the mass of the Sun.[3]
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