HAT-P-38b: A Saturn-Mass Planet Transiting a Late G Star

Details HAT-P-38b: A Saturn-Mass Planet Transiting a Late G Star HAT-P-38b: A Saturn-Mass Planet Transiting a Late G Star

2012-01-24

arxiv.org/abs/1201.5075v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

9 pages, 5 figures, 6 tables, submitted to PASJ

Scientific paper

We report the discovery of HAT-P-38b, a Saturn-mass exoplanet transiting the V=12.56 dwarf star GSC 2314-00559 on a P = 4.6404 d circular orbit. The host star is a 0.89Msun late G-dwarf, with solar metallicity, and a radius of 0.92Rsun. The planetary companion has a mass of 0.27MJ, and radius of 0.82RJ. HAT-P-38b is one of the closest planets in mass and radius to Saturn ever discovered.

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