WASP-29 is a binary star system 285 light-years (87 parsecs) away in the constellation of Phoenix. The primary star is a K-type main-sequence star. Its comoving companion, a red dwarf star, was discovered in 2021. The star system kinematically belongs to the thin disk of the Milky Way. The primary is an old star with small starspot activity and low x-ray flux.
Planetary system The "hot Saturn" class planet WASP-29b was discovered around WASP-29 in 2010. The planet would have an equilibrium temperature of 960±30 K. The planetary atmosphere has abundant carbon monoxide but likely lacks methane and sodium, although the high and dense cloud deck of WASP-29b prevents high-quality spectroscopic measurements. A study in 2018 revealed the stability of planetary orbits in the habitable zone of WASP-29 is significantly affected by the WASP-29b planet.
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