Iota Draconis b
From Wikipedia, the free encyclopedia
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
 |
||
| Orbital elements | ||
| Semimajor axis | (a) | 1.275 ± 0.074 AU |
| Eccentricity | (e) | 0.7124 ± 0.0039 |
| Orbital period | (P) | 511.098 ± 0.089 d (1.4 y) |
| Angular distance | (θ) | 40.476 mas |
| Longitude of periastron |
(ω) | 91.58 ± 0.81° |
| Time of periastron | (T0) | 2,452,014.59 ± 0.30 JD |
| Semi-amplitude | (K) | 307.6 ± 2.3 m/s |
| Physical characteristics | ||
| Mass | (m) | >8.82 ± 0.72 MJ |
| Discovery information | ||
| Discovery date | 2001 | |
| Discoverer(s) | Frink et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery status | Confirmed | |
Iota Draconis b was discovered in 2001 during a radial velocity study of K-class giant stars and was the first planet discovered orbiting a giant star. It is in an eccentric orbit, which aided its detection as giant stars have pulsations which can mimic the presence of a planet.[2]
[edit] See also
[edit] References
- ^ Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646: 505 – 522. doi:. (web Preprint)
- ^ Frink et al. (2002). "Discovery of a Substellar Companion to the K2 III Giant Iota Draconis". The Astrophysical Journal 576 (1): 478 – 484. doi:.
[edit] External links
- SIMBAD: HD 137759 b
- SolStation: Edasich/Iota Draconis
- The Extrasolar Planet Encyclopaedia: Notes for planet HIP 75458 b
- Extrasolar Visions: Iota Draconis b
 |
This extrasolar planet related article is a stub. You can help Wikipedia by expanding it. |
