WASP-41 is a G-type main-sequence star about 533 light-years away in the constellation Centaurus. Its surface temperature is 5450±150 K. WASP-41 is similar to the Sun in its concentration of heavy elements, with a metallicity Fe/H index of −0.080±0.090, but is much younger at an age of 2.289±0.077 billion years. The star exhibits strong starspot activity, with spots covering 3% of the stellar surface. Multiplicity surveys did not detect any stellar companions as of 2017.
Planetary system In 2011, one planet, named WASP-41b, was discovered on a tight, circular orbit. The transmission spectrum taken in 2017 was gray and featureless. No atmospheric constituents could be distinguished. The planetary orbit of WASP-41b is slightly misaligned with the equatorial plane of the star, at a misalignment angle of 9.15+2.85−2.62°. The planetary equilibrium temperature is 1242±12 K. Another planet, WASP-41c, was discovered in 2015. The planets are too far apart to significantly affect each other's orbits. The planetary equilibrium temperature of WASP-41c is 247±5 K.
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