HATS-1 is a star with 0.99 times the mass of the Sun, and 1.04 times its radius. It is located 926.19 light years away from the solar system and is estimated to be 6 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
HATS-1 is known to have 1 exoplanets in orbit around it.
HATS-1 b was discovered by the HATSouth observatory, in 2013-01, using the transit method. Its semi-major axis is 0.04 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of HATS-1 b is 589.890 times the mass of Earth. The radius of HATS-1 b is 14.594 that of Earth. At more than 50 Earth masses, HATS-1 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn in our solar system.