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HD 2638 b

Coordinates: Sky map 00h 29m 59.87s, −05° 45′ 50.41″
From Wikipedia, the free encyclopedia
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

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

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  1. ^ 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.
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