HD 2638 b

HD 2638 b is a planet of the star HD 2638. It is a typical "hot Jupiter", a planet that orbits its parent star in a very tight "torch orbit". Distance to the star is less than 1/20th Earth's distance from the Sun. One orbital revolution lasts only about three and half days.[1]

HD 2638 b
Discovery
Discovered byMoutou, Mayor,
Bouchy et al.
Discovery siteGeneva
Discovery date2005
Radial velocity
Orbital characteristics
0.044 AU (6,600,000 km)
Eccentricity0
3.4442 ± 0.0002 d
2,453,323.206
± 0.002
0
Semi-amplitude67.4 ± 0.4
StarHD 2638
Physical characteristics
Mass>0.48 MJ

    References


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