WASP-159 is a faint star located in the southern constellation Caelum.
With an apparent magnitude of 12.84, a powerful telescope is needed to see the star.
The star is located 2,380 light-years (730 parsecs) based on parallax, but is drifting away with a heliocentric radial velocity of +35.16 km/s.
It radiates at 4.78 times the Sun's luminosity from its photosphere at an effective temperature of 6,120 K. WASP-159 is about 3 billion years old, and is metal-rich like many other planetary hosts.
In 2019, SuperWASP discovered an inflated "hot Jupiter" orbiting the star.