WASP-15 b
Description: WASP-15b, formally named Asye, is an extrasolar planet discovered in 2008 by the SuperWASP collaboration, which seeks to discover exoplanets that transit their host stars. The planet orbits its host star at a distance of 0.05 AU every four days. The mass of this planet is about one half that of Jupiter, but its radius is nearly 50% larger than Jupiter's, making the density of this planet only one quarter that of water; it is thought that some other form of heating must explain its extremely low density. WASP-15b's discovery was published on April 29, 2009.
Physical Properties
Mass (Jupiter mass): 0.54 MJ
Radius (Jupiter radius): 1.41 RJ
Density: 0.263 g/cm³
Equilibrium Temperature: 1676.0 K
Orbital Parameters
Orbital Period: 3.7521 days
Semi-major Axis: 0.05165 AU
Eccentricity: Unknown
Inclination: 85.96°
Host Star Properties
Host Star: WASP-15
Spectral Type: F7
Temperature: 6300.0 K
Stellar Mass: 1.18 M☉
Stellar Radius: 1.48 R☉
Discovery Information
Planet Letter: b
Object ID: 3.11444
Host ID: 2.103435
Discovery Date: 2009-06
Discovery Year: 2009
Discovery Method: Transit
Discovery Locale: Ground
Discovery Facility: SuperWASP
Discovery Instrument: iKon-L CCD Camera