| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 40979 | |
| Constellation | Auriga | |
| Right ascension | (α) | 06h 04m 29.9431s |
| Declination | (δ) | +44° 15′ 37.599″ |
| Apparent magnitude | (mV) | 6.734 |
| Distance | 108.7 ly (33.33 pc) |
|
| Spectral type | F8V | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.855±0.049 AU (127.9 Gm) |
| Periastron | (q) | 0.625 AU (93.5 Gm) |
| Apastron | (Q) | 1.085 AU (162.3 Gm) |
| Eccentricity | (e) | 0.269±0.034 |
| Orbital period | (P) | 263.84±0.71 d (0.72 y) |
| Orbital speed | (υ) | 35.5 km/s |
| Argument of periastron |
(ω) | 318±10° |
| Time of periastron | (T0) | 2,451,748.1 ±8.6 JD |
| Semi-amplitude | (K) | 112±5 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 3.83±0.36 MJ (1217 M⊕) |
| Discovery information | ||
| Discovery date | 13 June 2002 | |
| Discoverer(s) | Fischer et al. | |
| Detection method | Radial velocity | |
| Discovery site | Lick and Keck Observatory Fairborn Observatory USA |
|
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
HD 40979 b is an extrasolar planet orbiting the star HD 40979, was detected from the Lick and Keck observatories and photometric observations at Fairborn Observatory reveal low-amplitude brightness variations in HD 40979. It is thought to be a large gas giant planet. It was discovered in 2002 by Debra Fischer.