HAT-P-30, also known as WASP-51, is the principal of a binary star system about 700 light-years away. It is a G-type main sequence star. The age of the star is much younger than that of the Sun. HAT-P-30 has a concentration of heavy elements similar to that of the Sun.

The faint stellar companion was detected in 2013 at a projected separation of 3.842 ± 0.007″.

In 2011, two teams independently detected a hot planet of Jupiter b in transit. The equilibrium temperature of the planet is 1695 K.

The planetary orbit is strongly misaligned with the equatorial plane of the star, with the misalignment angle equal to 73.5 ± 9.0°.


Observations of HAT-P-30b

Collaborative projects