Discovery | |
---|---|
Discovered by | Moutou, Mayor, Bouchy et al. |
Discovery site | Geneva |
Discovery date | 2005 |
Radial velocity | |
Orbital characteristics | |
0.044 AU (6,600,000 km) | |
Eccentricity | 0 |
3.4442 ± 0.0002 d | |
2,453,323.206 ± 0.002 | |
0 | |
Semi-amplitude | 67.4 ± 0.4 |
Star | HD 2638 |
Physical characteristics | |
Mass | >0.48 MJ |
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". The distance to the star is less than 1/20 Earth's distance from the Sun. One orbital revolution lasts only about three and half days.[1]