HAT-P-4

HAT-P-4 is a wide binary star consisting of a pair of G-type [main-sequence star]s in the constellation of Boötes. It also has the BD designation BD+36°2593.
The star exhibits an infrared excess of unknown origin.

Binary companion

The companion star is located at a distance of 28446 astronomical units and therefore has an orbital period that is extremely long.

Planetary system

The primary star is home to the transiting extrasolar planet HAT-P-4b. This planet is a fairly typical hot Jupiter type planet in a 3-day orbit.