HATS-3 is an

F-type main-sequence star An F-type main-sequence star (F V) is a main-sequence, hydrogen-fusing star of spectral type F and luminosity class V. These stars have from 1.0 to 1.4 times the mass of the Sun and surface temperatures between 6,000 and 7,600 K.Tables ...

away. Its surface temperature is 6351 K. HATS-3 is relatively depleted in its concentration of heavy elements, with a

metallicity In astronomy, metallicity is the Abundance of the chemical elements, abundance of Chemical element, elements present in an object that are heavier than hydrogen and helium. Most of the normal currently detectable (i.e. non-Dark matter, dark) matt ...

Fe/H index of −0.157, but is slightly younger than the

Sun The Sun is the star at the centre of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light a ...

at an age of 3.2 billion years. A multiplicity survey in 2016 detected a candidate stellar companion to HATS-3, 3.671 arc-seconds away.

Planetary system

In 2013, one planet, named HATS-3b, was discovered on a tight, nearly circular orbit. The planetary orbit of HATS-3b is likely aligned with the equatorial plane of the star, at a misalignment angle of 3°. The planetary equilibrium temperature is 1643 K.

References

{{DEFAULTSORT:HATS-3 Capricornus Planetary transit variables F-type main-sequence stars Planetary systems with one confirmed planet J20494978-2425436

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