Extrasolar planet | List of extrasolar planets | |
---|---|---|
Parent star | ||
Star | HD 114386 | |
Constellation | Centaurus | |
Right ascension | (α) | 13h 10m 39.8231s |
Declination | (δ) | –35° 03′ 17.218″ |
Distance | 91.42 ly (28.04 pc) |
|
Spectral type | K3V | |
Orbital elements | ||
Semimajor axis | (a) | 1.65 AU |
Periastron | (q) | 1.27 AU |
Apastron | (Q) | 2.03 AU |
Eccentricity | (e) | 0.23 ± 0.03 |
Orbital period | (P) | 937.7 ± 15.6 d (2.567 y) |
Orbital speed | (υ) | 19.2 km/s |
Argument of periastron |
(ω) | 273° ± 14° |
Time of periastron | (T0) | 2,450,454 ± 43 JD |
Semi-amplitude | (K) | 34.3 ± 1.6 m/s |
Physical characteristics | ||
Mass | (m) | >1.24 MJ (>394 M⊕) |
Discovery information | ||
Discovery date | 10 February 2004 | |
Discoverer(s) | Mayor et al. | |
Detection method | Radial velocity (CORALIE) |
|
Discovery site | La Silla Observatory, Chile | |
Discovery status | Published | |
Database references | ||
Extrasolar Planets Encyclopaedia |
data | |
SIMBAD | data |
HD 114386 b is an exoplanet orbiting the star HD 114386. The planet orbits the star in a rather eccentric orbit. Mean distance from the star is 1.62 AU, somewhat more than distance between Mars and the Sun. At periastron, the planet comes almost as close as Earth orbits the Sun, and at apoastron, the distance is twice as much.