WASP-58 is a binary star system comprising a G-type main-sequence star and a red dwarf about 955 light-years away. WASP-58 is slightly depleted in heavy elements, having 80% of the solar abundance of iron. WASP-58 is much older than the Sun at 12.80+0.20−2.10 billion years. Lithium was detected in the stellar spectrum of WASP-58A, making the star anomalous for its advanced age. A multiplicity survey in 2015 did detect a red dwarf stellar companion at a projected separation of 1.281±0.002″ to WASP-58A, and it was confirmed to be gravitationally bound in 2016.
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