HD 101930
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 11h 43m 30.11338s |
| Declination | −58° 00′ 24.7787″ |
| Apparent magnitude (V) | 8.21 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | K2 V+ |
| B−V color index | +0.91 |
| Astrometry | |
| Radial velocity (Rv) | +18.36 km/s |
| Proper motion (μ) | RA: +16.680 mas/yr Dec.: +349.125 mas/yr |
| Parallax (π) | 33.3814±0.0180 mas |
| Distance | 97.71 ± 0.05 ly (29.96 ± 0.02 pc) |
| Absolute magnitude (MV) | +5.88 |
| Details | |
| Radius | 0.87+0.05 −0.04 R☉ |
| Luminosity | 0.43±0.01 L☉ |
| Surface gravity (log g) | 4.40±0.11 cgs |
| Temperature | 5,079±62 K |
| Metallicity [Fe/H] | +0.1±0.03 dex |
| Rotational velocity (v sin i) | 2 km/s |
| Age | 5.4±4.4 Gyr |
| Other designations | |
| CD−57°4096, GJ 3683, HIP 57172, LTT 4350, NLTT 28356, SAO 239322 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
HD 101930, also known as GJ 3683, is an orange hued star with an orbiting exoplanet located in the southern constellation Centaurus. It has an apparent magnitude of 8.21, making it faintly visible in binoculars but not to the naked eye. The system is located relatively close at a distance of 98 light years but is receding with a heliocentric radial velocity of 18.4 km/s. It has a relatively large proper motion, traversing the celestial sphere with an angular velocity of 0.320″·yr−1.