HD 12661 c

HD 12661 c is a giant exoplanet one and a half times the mass of Jupiter orbiting around HD 12661.^[1]

HD 12661 c

The exoplanet HD 12661 c (min mass ~1.57 MJ)
Discovery
Discovered by	Fischer et al.[1]
Discovery site	California & Carnegie Planet Search  USA
Discovery date	April 1, 2003
Detection method	Radial velocity
Orbital characteristics
Semi-major axis	2.56 AU (383,000,000 km)
Eccentricity	0.031 ± 0.022
Orbital period (sidereal)	1708 ± 14 d
Time of periastron	2,452,130 ± 330
Argument of periastron	38
Semi-amplitude	29.27 ± 0.88
Star	HD 12661