HD 179949 b
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| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 179949 | |
| Constellation | Sagittarius | |
| Right ascension | (α) | 19h 15m 33.23s |
| Declination | (δ) | -24° 10' 45.67" |
| Distance | 88.18 ly (27.05 pc) | |
| Spectral type | F8V | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.0443±0.0026 AU |
| Eccentricity | (e) | 0.022±0.015 |
| Orbital period | (P) | 3.092514±0.000032 d |
| Angular distance | (θ) | 1.638 mas |
| Longitude of periastron |
(ω) | 192° |
| Time of periastron | (T0) | 2,451,002.32±0.44 JD |
| Semi-amplitude | (K) | 112.6±1.8 m/s |
| Physical characteristics | ||
| Mass | (m) | >0.916±0.076 MJ |
| Discovery information | ||
| Discovery date | Dec 16, 2000 | |
| Discoverer(s) | C. Tinney, Butler, Marcy et al. |
|
| Detection method | Radial velocity | |
| Discovery site | Anglo-Australian Observatory |
|
| Discovery status | Published | |
The extrasolar planet, designated as HD 179949 b, was the first discovery by the Anglo-Australian Planet Search at the Anglo-Australian Observatory. The planet is a so-called "hot Jupiter", a Jupiter-mass planet orbiting very close to its parent star. In this case, orbital distance is almost tenth that of Mercury from the Sun. One orbital revolution lasts only about 3 days.
HD 179949 b's parent star is HD 179949.
[edit] References
- G. Tinney et al. (2001). "First Results from the Anglo-Australian Planet Search: A Brown Dwarf Candidate and a 51 Peglike Planet" ([dead link]). The Astrophysical Journal 551: 507-511. doi:.
- Butler, R. et al. (2006). "Catalog of Nearby Exoplanets" (abstract). The Astrophysical Journal 646: 505 – 522. doi:. (web Preprint)
[edit] External links
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