HD 114386
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| Observation data Equinox 2000 |
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|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 10m 39.82s |
| Declination | -35° 3' 17.22" |
| Apparent magnitude (V) | 8.8 |
| Distance | 91.42 ly (28.04 pc) |
| Spectral type | K3V |
| Other designations | |
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CD-34°8698, HIP 64295
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HD 114386 is a 9th magnitude star in the constellation of Centaurus. It is an orange dwarf, and rather dim compared to our Sun. To see it, one needs a telescope or good binoculars.
In 2004, the Geneva Extrasolar Planet Search Team announced the discovery of an extrasolar planet orbiting the star.
[edit] HD 114386 b
| Orbital elements | ||
|---|---|---|
| Semi-major axis a: | 1.62 AU | |
| Eccentricity e: | 0.28 ± 0.1 | |
| Orbital period P: | 2 y 142 ± 34 d | |
| Inclination i: | ?° | |
| Longitude of periastron ω: |
345 ± 31° | |
| Time of periastron τ: | 2,450,702 ± 86 JD | |
| Physical characteristics | ||
| Mass: | >0.99 MJ | |
| Radius: | ? RJ | |
| Density: | ? kg/m³ | |
| Temperature: | ? K | |
| Discovery | ||
| Discovery date: | 2004 | |
| Detection method(s): | ||
| Discoverer(s): | Mayor, Urdy, Naef et al. |
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HD 114386 b is a planet orbiting the star. Its minimum mass is almost exactly the same as Jupiter. However, it is likely that the planet is actually more massive, but not by much.
The planet orbits the star in a rather eccentric orbit. Mean distance from the star is 1.62 AU, somewhat more than distance between Mars and the Sun. At periapsis, the planet comes almost as close as Earth orbits the Sun, and at apoapsis the distance is twice as much.
[edit] References
- Mayor et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics 415: 391-402.
[edit] External links
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