HD 186302
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pavo |
| Right ascension | 19h 49m 06.43036s |
| Declination | −70° 11′ 16.7033″ |
| Apparent magnitude (V) | 8.76±0.01 |
| Characteristics | |
| Spectral type | G3/5 V |
| B−V color index | 0.67 |
| Astrometry | |
| Radial velocity (Rv) | −1.3±0.3 km/s |
| Proper motion (μ) | RA: −24.004 mas/yr Dec.: −38.804 mas/yr |
| Parallax (π) | 17.6309±0.0147 mas |
| Distance | 185.0 ± 0.2 ly (56.72 ± 0.05 pc) |
| Absolute magnitude (MV) | +5.11 |
| Details | |
| Mass | 0.97±0.01 M☉ |
| Radius | 0.95±0.01 R☉ |
| Surface gravity (log g) | 4.47±0.01 cgs |
| Temperature | 5,675±15 K |
| Metallicity [Fe/H] | −0.03 dex |
| Rotational velocity (v sin i) | 2.30 km/s |
| Age | 4.5±0.81 Gyr |
| Other designations | |
| HD 186302, HIP 97507, 2MASS J19490644-7011167, CD−70°1724 | |
| Database references | |
| SIMBAD | data |
HD 186302 (also designated HIP 97507) is a star in the constellation of Pavo. It is 185 light-years (57 parsecs) away from Earth, with an apparent magnitude of 8.76. It was identified in November 2018 as a potential solar sibling to the Sun. Similar in spectrum and size, it was suspected to have formed in the same stellar nursery as the Sun 4.6 billion years ago. However, a common origin with the Sun was found to be unlikely in a 2019 paper, as HD 186302's galactic orbit is very different from the Sun's.