WASP-8 b
Description: WASP-8b is an exoplanet orbiting the star WASP-8A in the constellation of Sculptor. The star is similar to the Sun and forms a binary star with a red dwarf star (WASP-8B) of half the Sun's mass that orbits WASP-8A 4.5 arcseconds away. The system is 294 light-years away and is therefore located closer to Earth than many other star systems that are known to feature planets similar to WASP-8b. The planet and its parent star were discovered in the SuperWASP batch -6b to -15b. On 1 April 2008, Dr. Don Pollacco of Queen's University Belfast announced them at the RAS National Astronomy Meeting.
Physical Properties
Mass (Jupiter mass): 2.54 MJ
Radius (Jupiter radius): 1.13 RJ
Density: 2.47 g/cm³
Equilibrium Temperature: 1059.0 K
Orbital Parameters
Orbital Period: 8.15872 days
Semi-major Axis: 0.0801 AU
Eccentricity: 0.31
Inclination: 88.55°
Host Star Properties
Host Star: WASP-8
Spectral Type: G8 V
Temperature: 5600.0 K
Stellar Mass: 1.34 M☉
Stellar Radius: 1.03 R☉
Discovery Information
Planet Letter: b
Object ID: 3.11479
Host ID: 2.103429
Discovery Date: 2010-07
Discovery Year: 2010
Discovery Method: Transit
Discovery Locale: Ground
Discovery Facility: SuperWASP
Discovery Instrument: iKon-L CCD Camera