WASP-57 is a single G-type main-sequence star about 1,322 light-years away in the constellation Libra. WASP-57 is depleted in heavy elements, having 55% of the solar abundance of iron. WASP-57 is much younger than the Sun at 0.957 billion years.
A multiplicity survey in 2015 did not detect any stellar companions to WASP-57.
Planetary system In 2012 a transiting hot Jupiter planet, WASP-57b, was detected on a tight, circular orbit around WASP-57. The planetary equilibrium temperature is .
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