Beta Comae Berenices
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Coma Berenices |
| Right ascension | 13h 11m 52.39383s |
| Declination | +27° 52′ 41.4623″ |
| Apparent magnitude (V) | 4.26 |
| Characteristics | |
| Spectral type | G0 V |
| U−B color index | +0.08 |
| B−V color index | +0.58 |
| Astrometry | |
| Radial velocity (Rv) | +5.30±0.13 km/s |
| Proper motion (μ) | RA: -800.720 mas/yr Dec.: +882.301 mas/yr |
| Parallax (π) | 108.7250±0.1645 mas |
| Distance | 30.00 ± 0.05 ly (9.20 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.46 |
| Details | |
| Mass | 1.15 M☉ |
| Radius | 1.14±0.02 R☉ |
| Luminosity | 1.357±0.014 L☉ |
| Habitable zone inner limit | 0.918 au |
| Habitable zone outer limit | 1.96 au |
| Surface gravity (log g) | 4.38 cgs |
| Temperature | 5,936±33 K |
| Metallicity [Fe/H] | +0.07 dex |
| Rotation | 12.3±1.1 days |
| Rotational velocity (v sin i) | 4.10 ± 0.06 km/s |
| Age | 1.5–2.5 Gyr |
| Other designations | |
| β Com, 43 Com, BD+28°2193, FK5 492, GJ 502, HD 114710, HIP 64394, HR 4983, SAO 82706, LHS 348, LTT 13815 | |
| Database references | |
| SIMBAD | data |
Beta Comae Berenices (β Comae Berenices, β Com) is a solar-type star in the northern constellation of Coma Berenices. It is located at a distance of 30 light-years (9.2 parsecs) from Earth. The Greek letter beta (β) usually indicates that the star has the second highest visual magnitude in the constellation. However, with an apparent visual magnitude of 4.3, this star is actually slightly brighter than α Comae Berenices. It can be seen with the naked eye, but may be too dim to be viewed from a built-up urban area.