Kappa Virginis
Kappa Virginis (κ Virginis, abbreviated Kappa Vir, κ Vir), officially named Kang /ˈkæŋ/, is a solitary star in the zodiac constellation of Virgo. It has an apparent visual magnitude of 4.18, which is sufficiently bright to be seen with the naked eye. Based upon stellar parallax measurements, the distance to this star is about 255 light-years.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 14h 12m 53.74538s |
| Declination | −10° 16′ 25.3340″ |
| Apparent magnitude (V) | 4.180 |
| Characteristics | |
| Spectral type | K2/3 III |
| U−B color index | +1.457 |
| B−V color index | +1.343 |
| Astrometry | |
| Radial velocity (Rv) | −4.38±0.21 km/s |
| Proper motion (μ) | RA: +7.25 mas/yr Dec.: +139.88 mas/yr |
| Parallax (π) | 12.80 ± 0.25 mas |
| Distance | 255 ± 5 ly (78 ± 2 pc) |
| Absolute magnitude (MV) | −0.28 |
| Details | |
| Mass | 1.46±0.04 M☉ |
| Radius | 25.41±0.74 R☉ |
| Luminosity | 229 L☉ |
| Surface gravity (log g) | 1.83±0.08 cgs |
| Temperature | 4,235±20 K |
| Metallicity [Fe/H] | −0.43±0.04 dex |
| Rotational velocity (v sin i) | 5.1 km/s |
| Age | 9.67±0.97 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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