| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Centaurus |
| Right ascension | 11h 43m 30.1115s[1] |
| Declination | –58° 00′ 24.793″[1] |
| Apparent magnitude (V) | 8.21[1] |
| Characteristics | |
| Spectral type | K2V+[1] |
| Astrometry | |
| Proper motion (μ) | RA: 15.00 ±1.01[1] mas/yr Dec.: 347.49 ±0.8[1] mas/yr |
| Parallax (π) | 32.79[1] ± 0.96[1] mas |
| Distance | 99.42 ly (30.50 pc) |
| Details | |
| Mass | 0.74 ±0.05 M☉ |
| Metallicity | 0.17 ±0.06 |
| Age | 5.39×109 years |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
| Extrasolar Planets Encyclopaedia |
data |
HD 101930 is a dim 8th magnitude star located approximately 99 light years away in the constellation of Centaurus. It is an orange dwarf (spectral class K2V), somewhat dimmer and cooler than our Sun.[1]
Contents |
In 2005, the discovery of a planet orbiting the star was announced. This is another discovery using the radial velocity method with the HARPS spectrograph.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| HD 101930 b | 0.30 MJ | 0.302 | 70.46 ± 0.18 | 0.11 ± 0.02 |