Iota Horologii b
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| Extrasolar planet | Lists of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 0.91 AU |
| Eccentricity | (e) | 0.22±0.06 |
| Orbital period | (P) | 311.3±1.3 d |
| Inclination | (i) | ?° |
| Longitude of periastron |
(ω) | 78.9±13.1° |
| Time of periastron | (τ) | 2,451,308.8±10.4 JD |
| Physical characteristics | ||
| Mass | (m) | >2.24±0.13 MJ |
| Radius | (r) | ? RJ |
| Density | (ρ) | ? kg/m3 |
| Temperature | (T) | ? K |
| Discovery information | ||
| Discovery date | 1998-1999 | |
| Discoverer(s) | Kürster et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery status | Confirmed | |
Iota Horologii b (also known as HR 810 b) is an extrasolar planet orbiting the star Iota Horologii every 311 days. Iota Horologii b has a minimum mass 1.94 times that of Jupiter, however preliminary astrometric measurements suggest that the object may be around 24 Jupiter masses, and would therefore be a brown dwarf. The discovery is the result of a long-term survey of forty solar-type stars that was begun in November 1992.
Iota Horologii b was the first extrasolar planet found to have insolation similar to Venus.
[edit] See also
[edit] References
- Kürster et al. (2000). "An extrasolar giant planet in an Earth-like orbit. Precise radial velocities of the young star iota Horologii = HR 810". Astronomy and Astrophysics 353: L33 – L36.
- Naef et al. (2001). "The CORALIE survey for southern extrasolar planets V. 3 new extrasolar planets". Astronomy and Astrophysics 375: 205-218.
- Butler, R. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646: 505 – 522. (web Preprint)
[edit] External links
- Extrasolar Planets Encyclopedia: HR 810 b (ι Hor b)
- Extrasolar Visions: Iota Horologii b
- ESO: Discovery of Iota Horologii b
- SolStation: Iota Horologii
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