| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 81040 | |
| Constellation | Leo | |
| Right ascension | (α) | 09h 23m 47.0873s |
| Declination | (δ) | +20° 21′ 52.034″ |
| Apparent magnitude | (mV) | 7.72 |
| Distance | 106.2 ± 4.27 ly (32.56 ± 1.31 pc) |
|
| Spectral type | G2/G3 | |
| Orbital elements | ||
| Semimajor axis | (a) | 1.94 AU |
| Eccentricity | (e) | 0.526 ± 0.042 |
| Orbital period | (P) | 1001.7 ± 7 d |
| Time of periastron | (T0) | 2452504 ± 12 JD |
| Semi-amplitude | (K) | 168 ± 9 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 6.86 ± 0.71 MJ |
| Discovery information | ||
| Discovery date | November 24, 2005 | |
| Discoverer(s) | Sozzetti et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery site | Observatoire de Haute-Provence in France |
|
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
HD 81040 b is a massive, gas giant planet that orbits the star HD 81040. The period is just over 1000 days. It has semimajor axis of 1.94 AU. However, the orbit is extremely eccentric, little over 0.5 in value.