WASP-23b

WASP-23b is a hot Jupiter class exoplanet that orbits around the star WASP-23, a K-type main sequence star that is located 676 light years from Earth in the constellation of Puppis. It is similar to Jupiter in its physical parameters with a mass of 0.88 Jupiter masses and a radius of 0.96 Jupiter radii. It orbits at a distance of 0.0376 AU taking 2.94 days to complete an orbit. The orbit has an eccentricity of 0.062 and an inclination of 88.36°.

Discovery

WASP-23b was discovered by the Wide Angle [Search for Planets|WASP-south transit survey] via the transit method in the year 2010 by Triaud et al. 2011. The detection was confirmed photometrically and spectroscopically by the Swiss Swiss 1.2-metre [Leonhard Euler Telescope|Euler telescope]. Spectra were obtained during the transit of WASP-23b with the High Accuracy [Radial Velocity Planet Searcher|HARPS] spectrograph and the Rossiter-McLaughlin effect was detected despite its small amplitude.