From Wikipedia, the free encyclopedia
Hot-Jupiter exoplanet orbiting the star HD 2638
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]
References
[edit]- ^ Moutou, C.; et al. (2015). "The HARPS search for southern extra-solar planets IV. Three close-in planets around HD 2638, HD 27894 and HD 63454". Astronomy and Astrophysics. 439 (1): 367–373. arXiv:1411.7048. Bibcode:2005A&A...439..367M. doi:10.1051/0004-6361:20052826.
External links
[edit]
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