We report the discovery from WASP-South of a new Jupiter-like extrasolar planet , WASP-16b , which transits its solar analog host star every 3.12 days .
Analysis of the transit photometry and radial velocity spectroscopic data leads to a planet with R _ { p } = 1.008 \pm 0.071 R _ { Jup } and M _ { p } = 0.855 \pm 0.059 M _ { Jup } , orbiting a host star with R _ { * } = 0.946 \pm 0.054 R _ { \odot } and M _ { * } = 1.022 \pm 0.101 M _ { \odot } .
Comparison of the high resolution stellar spectrum with synthetic spectra and stellar evolution models indicates the host star is a near-solar metallicity ( [ Fe/H ] = 0.01 \pm 0.10 ) solar analog ( T _ { eff } = 5700 \pm 150 K , \log g = 4.5 \pm 0.2 ) of intermediate age ( \tau = 2.3 ^ { +5.8 } _ { -2.2 } Gyr ) .