Oxford University Press, Publications of Astronomical Society of Japan, 5(64), p. 97, 2012
DOI: 10.1093/pasj/64.5.97
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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. ; Comment: 9 pages, 5 figures, 6 tables, submitted to PASJ