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Extrasolar planet in the constellation Cetus From Wikipedia, the free encyclopedia
HD 5319 b is a gas giant exoplanet discovered in 2007[1] in the constellation of Cetus. This planet has a minimum mass nearly two times that of Jupiter. The planet has an almost circular orbit, with an eccentricity of only 0.02 and a period of 641 days. An additional planet in the system was discovered in 2015 and may be in a 4:3 mean motion resonance with planet b.[3]
Discovery | |
---|---|
Discovered by | Robinson et al.[1] |
Discovery site | California & Carnegie Planet Search |
Discovery date | January 11, 2007 |
Doppler spectroscopy | |
Orbital characteristics | |
1.57±0.13 AU | |
Eccentricity | 0.015±0.016[2] |
638.6±1.2[2] d | |
2463066±123[2] | |
86±69[2] | |
Semi-amplitude | 31.45±0.82[2] |
Star | HD 5319 |
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