HD 2638 b
Discovery
Discovery date
2005
0.044 AU (6,600,000 km)
0
3.4442 ± 0.0002 d
2,453,323.206
± 0.002
0
67.4 ± 0.4
Star
Physical characteristics
>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]