Beta Canum Venaticorum
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Canes Venatici |
| Right ascension | 12h 33m 44.54425s |
| Declination | +41° 21′ 26.9214″ |
| Apparent magnitude (V) | 4.25 |
| Characteristics | |
| Spectral type | G0 V |
| U−B color index | 0.04 |
| B−V color index | 0.58 |
| Astrometry | |
| Radial velocity (Rv) | +6.15±0.12 km/s |
| Proper motion (μ) | RA: −704.702 mas/yr Dec.: +292.155 mas/yr |
| Parallax (π) | 118.0266±0.1530 mas |
| Distance | 27.63 ± 0.04 ly (8.47 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.64 |
| Details | |
| Mass | 0.97±0.04 M☉ |
| Radius | 1.03±0.03 R☉ |
| Luminosity | 1.254±0.009 L☉ |
| Surface gravity (log g) | 4.41±0.04 cgs |
| Temperature | 6013±91 K |
| Metallicity [Fe/H] | −0.2±0.01 dex |
| Rotational velocity (v sin i) | 2.9±0.4 km/s |
| Age | 3.4 to 7.1 Gyr |
| Other designations | |
| Chara, β CVn, 8 CVn, BD+42 2321, FK5 470, GJ 475, HD 109358, HIP 61317, HR 4785, SAO 44230, NGC 4530 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Beta Canum Venaticorum (β Canum Venaticorum, abbreviated Beta CVn, β CVn), also named Chara /ˈkɛərə/, is the second-brightest star in the northern constellation of Canes Venatici. It is a nearby solar-type star, about 27.6 light-years (8.5 parsecs) distant based on its parallax. The star is faintly visible to the naked eye, at an apparent magnitude of +4.25. Along with the brighter star Cor Caroli, the pair form the "southern dog" in this constellation that represents hunting dogs.