The planet WASP-50b is 1.14 times the radius of Jupiter, the largest planet in our Solar System. It is thus much bigger than Earth.
WASP-50b is about 1 and a half times the mass of Jupiter, which means that WASP-50b is about the same density as Jupiter.
The star WASP-50 is smaller than the Sun, at 0.86 times the Sun’s radius. Its spectral type is estimated to be G9, so it is also cooler than the Sun, which is a G2 star. WASP-50 has a brightness of visual magnitude 11.6.
WASP-50b orbits at a distance of 4.36 million km, taking 1.96 days to go round its orbit.
WASP-50 lies in the constellation of Eridanus. Its coordinates are right ascension 02:54:45.0 and declination −10:53:53. The system is at a distance of 180 parsecs from us.
The brightest stars in the plot have magnitude −1 and the faintest have magnitude 6, so, with a visual magnitude of 11.6, WASP-50 is much fainter than these stars. You would need a telescope to see it.
The discovery of WASP-50b was announced in 2011 in a paper led by Michaël Gillon of the University of Liège in Belgium. Prof. Gillon built the TRAPPIST-South telescope which has observed transits of many WASP-South planets.
For more information visit http://exoplanet.eu/catalog/wasp-50_b/.
References
WASP Planets 