HD 118203 b

Coordinates: Sky map 13h 34m 02.5375s, +53° 43′ 42.704″
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HD 118203 b is a jovian planet that takes only 6.13 days or 147 hours to orbit the parent star at a distance of 0.07 astronomical units. It has minimum mass of 2.14 times that of Jupiter but the true mass is not known since inclination is not known. This hot Jupiter is unusual since it has relatively high eccentricity of 0.31.[1]

HD 118203 b was discovered in August 2005 in Haute-Provence Observatory in France by Da Silva who used the doppler spectroscopy to look for shifts in the star’s spectrum caused by the planet’s gravity as the planet orbits the star.

References

  1. ^ da Silva, R.; et al. (2006). "Elodie metallicity-biased search for transiting Hot Jupiters I. Two Hot Jupiters orbiting the slightly evolved stars HD118203 and HD149143". Astronomy and Astrophysics. 446 (2): 717–722. arXiv:astro-ph/0510048. Bibcode:2006A&A...446..717D. doi:10.1051/0004-6361:20054116.

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