Discovery date October 31, 2007 Discovery status Published | Discovery site SAAO | |
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Discoverer(s) David. M. Wilson et al. (SuperWASP) | ||
WASP-4b is an extrasolar planet approximately 1,000 light-years away in the constellation of Phoenix. The planet was discovered orbiting the star WASP-4 in October 2007. The planet's mass and radius indicate that it is a gas giant, similar to Jupiter. WASP-4b is close enough to its star to be classified as a hot Jupiter and has an atmospheric temperature of approximately 1650 K.
The planet was the discovered by the SuperWASP project using cameras in South Africa. After its discovery, the mass of the WASP-4 b was determined by measuring the radial velocity of WASP-4, which confirmed that the object that caused the transit was a planet.
References
WASP-4b Wikipedia(Text) CC BY-SA