HD 50554 b is a Jupiter-sized extrasolar planet with minimum mass 4.4 times that of Jupiter. The planet was announced in 2001 by the European Southern Observatory and confirmed in 2002 using observations from the Lick and Keck telescopes.[1][3]
Discovery | |
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Discovered by | Geneva Extrasolar Planet Search |
Discovery date | April 4, 2001[1] |
Detection method | doppler spectroscopy |
Orbital characteristics | |
Semi-major axis | 2.28 ± 0.13 AU (341,000,000 ± 19,000,000 km)[2] |
Eccentricity | 0.444 ± 0.038[2] |
Orbital period (sidereal) | 1224 ± 12[2] d |
Time of periastron | 2450646 ± 16[2] |
Argument of periastron | 7.4 ± 4.3[2] |
Semi-amplitude | 91.5 ± 7.6[2] |
Star | HD 50554 |
Constellation of Gemini | |||||||||||||
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