HD 24085 and Its Planet

HD 24085 is a G0 V star located 179 light-years away, and it hosts one known planet. The star is a main-sequence dwarf of the G-type, a class that includes the Sun. Its spectral class, leading letter and number together, indicates a temperature class, while the trailing V marks a main-sequence dwarf. Astronomers report the star's mass at 1.13 solar masses, its radius at 1.4 solar radii, and its temperature at 6050 K. The reported radius estimate is larger than the Sun's, and its reported temperature is hotter than the Sun's.

The single planet, HD 24085 b, was discovered in 2019 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. HD 24085 b has a minimum mass of 11.8 Earth masses, a lower bound on its true mass that differs from an ordinary mass estimate. Its minimum mass is larger than Earth's. The planet completes an orbit in 2.05 days, a short period that places it close to its star.