We report the discovery of eight hot-Jupiter exoplanets from the WASP-South transit survey . WASP-144b has a mass of 0.44 M _ { Jup } , a radius of 0.85 R _ { Jup } , and is in a 2.27-d orbit around a V = 12.9 , K2 star which shows a 21-d rotational modulation . WASP-145Ab is a 0.89 M _ { Jup } planet in a 1.77-d orbit with a grazing transit .
The host is a V = 11.5 , K2 star with a companion 5 arcsecs away and 1.4 mags fainter . WASP-158b is a relatively massive planet at 2.8 M _ { Jup } with a radius of 1.1 R _ { Jup } and a 3.66-d orbit .
It transits a V = 12.1 , F6 star . WASP-159b is a bloated hot Jupiter ( 1.4 R _ { Jup } and 0.55 M _ { Jup } ) in a 3.8-d orbit around a V = 12.9 , F9 star . WASP-162b is a massive planet in a relatively long and highly eccentric orbit ( 5.2 M _ { Jup } , P = 9.6 d , e = 0.43 ) .
It transits a V = 12.2 , K0 star . WASP-168b is a bloated hot Jupiter ( 0.42 M _ { Jup } , 1.5 R _ { Jup } ) in a 4.15-d orbit with a grazing transit .
The host is a V = 12.1 , F9 star . WASP-172b is a bloated hot Jupiter ( 0.5 M _ { Jup } ; 1.6 R _ { Jup } ) in a 5.48-d orbit around a V = 11.0 , F1 star . WASP-173Ab is a massive planet ( 3.7 M _ { Jup } ) with a 1.2 R _ { Jup } radius in a circular orbit with a period of 1.39 d. The host is a V = 11.3 , G3 star , being the brighter component of the double-star system WDS23366 - 3437 , with a companion 6 arcsecs away and 0.8 mags fainter .
One of the two stars shows a rotational modulation of 7.9 d .