HD 76700
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| Observation data Epoch 2000 |
|
|---|---|
| Constellation (pronunciation) |
Volans |
| Right ascension | 8h 53m 55.52s |
| Declination | -66° 48' 3.57" |
| Apparent magnitude (V) | 8.13 |
| Distance | 194.6 ly (59.70 pc) |
| Spectral type | G6V |
| Other designations | |
|
CD-66°656, HIP 43686
|
|
HD 76700 is a yellow dwarf star (spectral type G6 V) 195 light years from Earth in the constellation of Volans. It has a mass very similar to our Sun, but is cooler and brighter and thus much older. It is orbited by a recently discovered planet.
[edit] HD 76700 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 0.0511±0.0030 AU |
| Eccentricity | (e) | 0.095±0.075 |
| Orbital period | (P) | 3.97097±0.00023 d |
| Angular distance | (θ) | 0.821 mas |
| Longitude of periastron |
(ω) | 30° |
| Time of periastron | (T0) | 2,451,213.32±0.67 JD |
| Semi-amplitude | (K) | 27.6±1.7 m/s |
| Physical characteristics | ||
| Mass | (m) | >0.233±0.024 MJ |
| Discovery information | ||
| Discovery date | July 5, 2002 | |
| Discoverer(s) | Tinney, Butler, Marcy et al. |
|
| Detection method | Radial velocity | |
| Discovery site | Geneva Observatory in France | |
| Discovery status | Published | |
HD 76700 b is a planet discovered orbiting the star in 2002. The planet is a gas giant a fifth the mass of Jupiter. It orbits very close to its parent star and completes one orbit in less than four days.
[edit] References
- Tinney et al. (2003). "Four New Planets Orbiting Metal-enriched Stars". The Astrophysical Journal 587 (1): 423 – 428. doi:.
- Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505 – 522. doi:. (web Preprint)
[edit] External links
- SIMBAD star entry, planet entry
- The Extrasolar Planets Encyclopaedia entry
- Extrasolar Visions entry
- Stars and Planets entry
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