WASP-54, also known as BD+00 3088, is a binary star system about 818 light-years away in the constellation Virgo. The primary, WASP-54A, is an F-type subgiant, accompanied by the red dwarf WASP-54B on a wide orbit. WASP-54 is depleted in heavy elements, having 55% of the solar abundance of iron. WASP-54 is slightly older than the Sun at 6.9+1.0−1.9 billion years.
Star system A multiplicity survey in 2017 detected a red dwarf stellar companion WASP-54B 5.7″ away from WASP-54A. The companion was proven to be co-moving in 2020.
Planetary system In 2012 a transiting hot Jupiter planet, WASP-54b, was detected on a tight orbit around WASP-54A. The planetary equilibrium temperature is 1,742+49−69 K.
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