HD 86081
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Sextans |
| Right ascension | 09h 56m 05.918s |
| Declination | -03° 48′ 30.318″ |
| Apparent magnitude (V) | 8.74 |
| Absolute magnitude (V) | 3.94 |
| Distance | 297 ly (91 pc) |
| Spectral type | F8V |
| Other designations | |
|
BD-03 2815, HIP 48711, SAO 137236
|
|
HD 86081 is a yellow-white dwarf star in the constellation Sextans south of the celestial equator. It is bigger and more massive at 1.22 and 1.21 solar units respectively. It has temperature of 6028 K and luminosity of 1.75 solar.
[edit] HD 86081 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 0.035 AU |
| Eccentricity | (e) | 0.008±0.004 |
| Orbital period | (P) | 2.1375±0.0002 d |
| Angular distance | (θ) | 0.43 mas |
| Longitude of periastron |
(ω) | 251±40° |
| Time of periastron | (T0) | 2453694.8±0.3 JD |
| Semi-amplitude | (K) | 207.7±0.8 m/s |
| Physical characteristics | ||
| Mass | (m) | >1.50 MJ |
| Discovery information | ||
| Discovery date | 2006 | |
| Discoverer(s) | Johnson et al. | |
| Detection method | radial velocity | |
| Discovery status | Published | |
HD 86081 b is a gas giant exoplanet that orbits real close to the star, completing its orbit for only 2.1375 days. As it is typical for hot Jupiters, the orbit is circular with eccentricity of 0.008.
[edit] References
- Johnson, John Asher; Marcy, Geoffrey W.; Fischer, Debra A.; Laughlin, Gregory; Butler, R. Paul; Henry, Gregory W.; Valenti, Jeff A.; Ford, Eric B.; Vogt, Steven S.; Wright, Jason T. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal 647 (1): 600–611. doi:.
[edit] External links
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