HD 210277
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 09m 29.8658s |
| Declination | −07° 32′ 55.162″ |
| Apparent magnitude (V) | 6.54 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | G8V or G8/K0V |
| U−B color index | 0.36 |
| B−V color index | 0.75 |
| Astrometry | |
| Radial velocity (Rv) | −20.855±0.0003 km/s |
| Proper motion (μ) | RA: 85.407(29) mas/yr Dec.: −450.617(23) mas/yr |
| Parallax (π) | 46.8515±0.0283 mas |
| Distance | 69.61 ± 0.04 ly (21.34 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.90±0.05 |
| Details | |
| Mass | 1.007+0.040 −0.039 M☉ |
| Radius | 1.087+0.015 −0.016 R☉ |
| Luminosity | 1.002 L☉ |
| Surface gravity (log g) | 4.369±0.020 cgs |
| Temperature | 5,705±35 K |
| Metallicity [Fe/H] | 0.170±0.097 dex |
| Rotation | 40.8 d |
| Rotational velocity (v sin i) | 1.888±0.158 km/s |
| Age | 6.471+1.744 −1.643 Gyr 8.929±2.671 Gyr |
| Other designations | |
| BD−08°5818, GJ 848.4, GJ 9769, HD 210277, HIP 109378, SAO 145906, PPM 206033, LTT 8887, NLTT 53073, GCRV 13920, 2MASS J22092985-0732548 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
HD 210277 is a single star in the equatorial constellation of Aquarius. It has an apparent visual magnitude of 6.54, which makes it a challenge to view with the naked eye, but it is easily visible in binoculars. The star is located at a distance of 69.6 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −20.9 km/s.