HD 114386

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HD 114386
Observation data
Epoch 2000
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
CD-34°8698, HIP 64295

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

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/
Temperature  ? K
Discovery
Discovery date 2004
Detection method(s)
Discoverer(s) Mayor, Urdy,
Naef et al.

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 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.


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