Rho Coronae Borealis
Rho Coronae Borealis (ρ CrB, ρ Coronae Borealis) is a yellow dwarf star 57.1 light-years (17.5 parsecs) away in the constellation of Corona Borealis. The star is thought to be similar to the Sun with nearly the same mass, radius, and luminosity. It is orbited by four known exoplanets.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 16h 01m 02.66049s |
| Declination | +33° 18′ 12.6395″ |
| Apparent magnitude (V) | 5.39 |
| Characteristics | |
| Spectral type | G0V |
| B−V color index | 0.61 |
| Astrometry | |
| Radial velocity (Rv) | 17.88±0.12 km/s |
| Proper motion (μ) | RA: −198.278(43) mas/yr Dec.: −772.245(53) mas/yr |
| Parallax (π) | 57.1076 ± 0.0508 mas |
| Distance | 57.11 ± 0.05 ly (17.51 ± 0.02 pc) |
| Absolute magnitude (MV) | +4.21 |
| Details | |
| Mass | 0.95±0.01 M☉ |
| Radius | 1.304±0.012 R☉ |
| Luminosity | 1.749±0.040 L☉ |
| Surface gravity (log g) | 4.25±0.05 cgs |
| Temperature | 5817±24 K |
| Metallicity [Fe/H] | −0.24±0.08 dex |
| Rotation | 20.3±1.8 d |
| Rotational velocity (v sin i) | 0.8±0.3 km/s |
| Age | 10.2±0.5 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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