HATS-3 is an F-type main-sequence star 1,380 light-years (420 parsecs) away.
Its surface temperature is 6351±76 K. HATS-3 is relatively depleted in its concentration of heavy elements, with a metallicity Fe/H index of −0.157±0.07, but is slightly younger than the Sun at an age of 3.2+0.6−0.4 billion years.
[4] A multiplicity survey in 2016 detected a candidate stellar companion to HATS-3, 3.671±0.016 arc-seconds away.
[6] In 2013, one planet, named HATS-3b, was discovered on a tight, nearly circular orbit.
[4] The planetary orbit of HATS-3b is likely aligned with the equatorial plane of the star, at a misalignment angle of 3±25°.