HIP 5158 b

HIP 5158 b is an extrasolar planet which orbits the K-type main sequence star HIP 5158, located approximately 130 light years away in the constellation Cetus. This planet was detected by HARPS on October 19, 2009, together with 29 other planets.

HIP 5158 b

Discovery
Discovered by	Lo Curto et al.
Discovery site	La Silla Observatory
Discovery date	October 19, 2009
Detection method	radial velocity (HARPS)
Orbital characteristics
Semi-major axis	0.89 AU (133,000,000 km)[1]
Eccentricity	0.52 ± 0.08[1]
Orbital period (sidereal)	345.72 ± 5.37[1] d
Time of periastron	2,454,580.49 ± 15.21[1]
Argument of periastron	−108 ± 11[1]
Semi-amplitude	57 ± 11[1]
Star	HIP 5158