HD 169830 b

HD 169830 b
Discovery
Discovered by	Mayor, Udry et al.
Discovery site	France
Discovery date	April 15, 2000
Detection method	Radial velocity
Orbital characteristics
Semi-major axis	0.818 AU (122,400,000 km)
Eccentricity	0.332 ± 0.03
Orbital period (sidereal)	226.01 ± 0.23 d
Time of periastron	2,451,923 ± 1
Argument of periastron	148 ± 2
Semi-amplitude	80.7 ± 0.9
Star	HD 169830

HD 169830 b is an extrasolar planet^[2] three times the mass of Jupiter. Due to its high mass, it is most likely a gas giant planet, akin to Jupiter and Saturn in the Solar System. This planet at 0.8 AU is slightly farther out than Venus is in the Solar System, orbiting around its star every 262 days.

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