HD 70642 b
From Wikipedia, the free encyclopedia
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 70642 | |
| Constellation | Puppis | |
| Right ascension | (α) | 08h 21m 28.1361s |
| Declination | (δ) | −39° 42′ 19.474″ |
| Distance | 93.8 ly (28.76 pc) | |
| Spectral type | G5V | |
| Orbital elements | ||
| Semimajor axis | (a) | 3.232 AU |
| Eccentricity | (e) | 0.034 ± 0.043 |
| Orbital period | (P) | 2068 ± 39 d (5.662 y) |
| Angular distance | (θ) | 149.885 mas |
| Longitude of periastron |
(ω) | 205° |
| Time of periastron | (T0) | 2,451,350 ± 380 JD |
| Semi-amplitude | (K) | 30.4 ± 1.3 m/s |
| Physical characteristics | ||
| Mass | (m) | >1.97 ± 0.06 MJ |
| Radius | (r) | 1.01 (Estimated) RJ |
| Discovery information | ||
| Discovery date | July 3, 2003 | |
| Discoverer(s) | Carter et al. | |
| Detection method | Radial velocity | |
| Discovery site | Australia | |
| Discovery status | Published | |
HD 70642 b is a planet that orbits the star HD 70642 at 3.23 AU distance and takes 5.66 years to revolve. This planet is a “Jupiter-twin” because it is very similar to Jupiter in our Solar System, though only three-fifths the distance, twice as massive, and two-thirds as eccentric. This planet may have systems of moons like Jupiter. This planet was discovered on July 3, 2003.
[edit] References
- Carter et al. (2003). "Planet around HD70642".
- Carter et al. (2003). "A Planet in a Circular Orbit with a 6 Year Period". The Astrophysical Journal 593 (1): L43 – L46. doi:.
[edit] See also
[edit] External links
 |
This extrasolar planet related article is a stub. You can help Wikipedia by expanding it. |
