HD 82943 b

HD 82943 b is an extrasolar planet approximately 89 light-years away in the constellation of Hydra. The planet was announced in 2000 by the Geneva Extrasolar Planet Search Team.^[1] The planet is the outermost planet of two.^[2]

HD 82943 b

Discovery
Discovered by	Mayor, Udry et al.
Discovery site	France
Discovery date	April 15, 2000[1]
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	1.19 AU (178,000,000 km)
Eccentricity	0.219
Orbital period (sidereal)	441.2 d
Time of periastron	1373.1
Argument of periastron	284
Semi-amplitude	59.3 ± 5.2
Star	HD 82943

See also

• HD 82943 c