HD 143361 b is an extrasolar planet located approximately 194 light-years away in the constellation of Norma, orbiting the 9th magnitude G-type main sequence star HD 143361. This planet has a minimum mass of 3.0 times that of Jupiter. Because the inclination is not known, the true mass is not known. This planet orbits at a distance of 2.0 AU with an orbital eccentricity of 0.18.
Discovery | |
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Discovered by | Minniti et al. |
Discovery date | October 29, 2008 |
Detection method | Doppler spectroscopy |
Orbital characteristics | |
Semi-major axis | 1.98±0.07 AU |
Eccentricity | 0.193±0.015[1] |
Orbital period (sidereal) | 1046.2±3.2[1] d |
Argument of periastron | 241.2±3.4[1] |
Semi-amplitude | 72.1±1.0[1] |
Star | HD 143361 |
This object was detected using the radial velocity method during an astronomical survey conducted by the Magellan Planet Search Program using the MIKE echelle spectrograph on the 6.5-m Magellan II (Clay) telescope.[2]