HD 114386

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Stern
HD 114386
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation centaur
Right ascension 13 h 10 m 39.82 s
declination -35 ° 03 ′ 17.2 ″
Apparent brightness 8.73 likes
Typing
Known exoplanets 1 to 2
Spectral class K3 V
Astrometry
parallax (34.61 ± 1.17)  mas
distance (94.2 ± 3.2)  ly
(28.89 ± 0.98)  pc  
Visual absolute brightness M vis approx. +6.4 mag
Proper movement 
Rec. Share: (−137.59 ± 1.29)  mas / a
Dec. portion: (−324.70 ± 1.00)  mas / a
Physical Properties
Dimensions 0.75  M ☉
radius 0.76  R ☉
Effective temperature 4819  K
Metallicity [Fe / H] −0.08
Age approx. 2 billion  a
Other names
and catalog entries
Henry Draper Catalog HD 114386 [1]
Hipparcos catalog HIP 64295 [2]
SAO catalog SAO 204193 [3]

HD 114386 is a main sequence star of spectral class K3 about 90 light years away . It lies in the constellation Centaur and has an apparent magnitude of 8.7 mag.

The star is accompanied by at least one extrasolar planet , which was discovered by Mayor et al. In 2004 using the radial velocity method . has been published and which has the systematic name HD 114386 b . The discoverers stated an orbital period of slightly more than 900 days and the minimum mass of around 1.2 Jupiter masses. According to work by Mayor et al. from 2011, which was not published in a specialist journal, there is another exoplanet around this star (systematic name HD 114386 c ). A period of rotation of slightly more than 1000 days is specified for this, whereby in this case a significantly shorter period of rotation of around 450 days and also a lower minimum mass would result for HD 114386 b.

Web links

Individual evidence

  1. ^ Hipparcos catalog (ESA 1997)
  2. ↑ a b c d Mayor et al. (2004): The CORALIE survey for southern extra-solar planets. XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE ;
  3. ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
  4. ↑ Mayor et al. (2011): The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets