HD 204313 b

HD 204313 b
Exoplanet List of exoplanets
Parent star
Star HD 204313
Constellation Capricornus
Right ascension (α) 21h 28m 12.2063s
Declination (δ) –21° 43 34.517
Apparent magnitude (mV) 7.99
Distance154.50 ± 4.53 ly
(47.37 ± 1.39 pc)
Spectral type G5V
Orbital elements
Semi-major axis(a) 3.082 ± 0.055 AU
Periastron (q) 2.678 AU
Apastron (Q) 3.486 AU
Eccentricity (e) 0.131 ± 0.023
Orbital period(P) 1931 ± 18 d
(5.29 ± 0.05 y)
Argument of
periastron
(ω) -57 ± 11°
Time of periastron (T0) 3989 ± 62 JD
Physical characteristics
Minimum mass(m sin i)4.05 ± 0.17 MJ
Discovery information
Discovery date August 11, 2009
Discoverer(s) Segransan et al.
Discovery method Radial velocity (CORALIE)
Discovery site La Silla Observatory
Discovery status Published
Other designations
HIP 106006 b
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 204313 b is an extrasolar planet which orbits the G-type main sequence star HD 204313, located approximately 155 light years away in the constellation Capricorn. This planet orbits the star at a distance of 3.082 astronomical units and takes 1931 days or 5.29 years to revolve around the star. It has minimum mass four times that of Jupiter. However the radius and inclination are not known since this planet was not detected by transit method or direct imaging. Instead, this planet was detected by radial velocity method using the CORALIE Echelle spectrograph mounted on the 1.2 meter Euler Swiss Telescope located at La Silla Observatory in Atacama desert, Chile on August 11, 2009.

References

Coordinates: 21h 28m 12.2063s, −21° 43′ 34.517″


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