HD 114762
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HD 114762 is a yellow main sequence star. It is located west of Bootes in the dim constellation Coma Berenices. To see it, one needs a telescope or good binoculars.
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[edit] HD 114762 b
| Extrasolar planet | Lists of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 0.363 ± 0.021 AU |
| Eccentricity | (e) | 0.3359 ± 0.0091 |
| Orbital period | (P) | 83.8881 ± 0.0086 d |
| Inclination | (i) | ° |
| Longitude of periastron |
(ω) | 201.7 ± 1.4° |
| Time of periastron | (τ) | 2,449,805.36 ± 0.34 JD |
| Physical characteristics | ||
| Mass | (m) | >11.68 ± 0.96 MJ |
| Radius | (r) | ? RJ |
| Density | (ρ) | ? kg/m3 |
| Temperature | (T) | ? K |
| Discovery information | ||
| Discovery date | 1989 | |
| Discoverer(s) | Latham et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery status | Confirmed | |
HD 114762 b is an unseen companion to HD 11472, discovered in 1989 by David Latham and others.[2] As of 2006, insufficient confirmed measurements exist to determine whether it is a high mass gas giant, with its lowest possible mass being 11 times the mass of Jupiter, or a brown dwarf, with its highest mass around 145 times.[3][4] It orbits the star around 83.89 days and an orbital eccentricity of 0.34.
[edit] References
- ^ Butler, R. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646: 505 – 522. (web Preprint)
- ^ Latham, David W. et al (1989). "The unseen companion of HD114762 - A probable brown dwarf". Nature (journal) 339: 38-40.
- ^ Alan Hale (1995). "On the nature of the companion to HD 114762". Astronomical Society of the Pacific 107: 22-26.
- ^ Marcy et al (1999). "Two New Candidate Planets in Eccentric Orbits". Astrophysical Journal 520: 239-247.
