| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 101930 | |
| Constellation | Centaurus | |
| Right ascension | (α) | 11h 43m 30.11s |
| Declination | (δ) | –58° 00′ 24.793″ |
| Distance | 99.42 ly (30.50 pc) |
|
| Spectral type | K1V | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.302 AU |
| Periastron | (q) | 0.077 AU |
| Apastron | (Q) | 0.335 AU |
| Eccentricity | (e) | 0.11 ± 0.02 |
| Orbital period | (P) | 70.46 ± 0.18 d (0.1929 y) |
| Orbital speed | (υ) | 46.8 km/s |
| Argument of periastron |
(ω) | 251 ± 11° |
| Time of periastron | (T0) | 2,453,145.0 ± 2.0 JD |
| Semi-amplitude | (K) | 18.1 ± 0.4 m/s |
| Physical characteristics | ||
| Mass | (m) | >0.30 MJ (>95 M⊕) |
| Discovery information | ||
| Discovery date | 14 February 2005 | |
| Discoverer(s) | Lovis, Mayor, Pepe et al. |
|
| Detection method | Doppler spectroscopy (HARPS) |
|
| Discovery site | La Silla Observatory | |
| Discovery status | Published | |
| Other designations | ||
|
GJ 3683 b, HIP 57172 b
|
||
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
HD 101930 b is an extrasolar planet orbiting the star HD 101930. It has a minimum mass a third of Jupiter's, nearly the same as Saturn's so it is thought to be a gas giant. It orbits the star closer than Mercury, and the orbit is slightly eccentric.