HAT-P-30

HAT-P-30, also known as WASP-51, is the primary of a binary star system about 679 light-years away in the constellation Hydra. It is a G-type [main-sequence star]. HAT-P-30 has a similar concentration of heavy elements compared to the Sun.
The faint stellar companion was detected in 2013 at a projected separation of 3.842″.

Planetary system

In 2011 a transiting hot Jupiter planet, HAT-P-30b, was independently detected by two teams, the HATNet Project and the Wide Angle Search for Planets.
The planetary orbit is strongly misaligned with the equatorial plane of the star, the misalignment angle being equal to 73.5°.
Since 2022, an additional planet in the system is suspected based on transit timing variations.