WASP-74 is a star in the constellation of Aquila, located approximately 488 light-years (149 parsecs) from the Sun.<ref name="nasaea"></ref> At least one exoplanet is known to orbit the star.
Stellar characteristics WASP-74 is a yellow-white subgiant of spectral type F9. Its apparent magnitude is 9.75, making it invisible to the naked eye. Based on spectroscopic analysis with the HARPS-N spectrograph and Bayesian modelling using PARSEC isochrones, the star has a mass of 1.236 ± 0.026 solar masses, a radius of , and an effective temperature of . Its metallicity ([Fe/H]) is , indicating it is notably more metal-rich than the Sun. Stellar models give an age of billion years, and the star's projected rotational velocity is .
The star's proper motion is in right ascension and in declination, with a radial velocity of .
Planetary system In 2015, one exoplanet was announced orbiting WASP-74, designated WASP-74 b, discovered by the SuperWASP survey using the transit method. It is a hot Jupiter with a mass of 0.72 Jupiter masses and a radius of 1.312 Jupiter radii, completing one orbit every 2.13775138 days at a distance of from its host star, with an equilibrium temperature of approximately 1,865 K. The planet's orbit is circular and well-aligned with the stellar equator, with a measured sky-projected spin-orbit angle of degrees.
References