Ouranos › Planets round other stars English Español Français Deutsch Português Italiano 日本語 简体中文 한국어 हिन्दी العربية HD 7924, a K0.5 V star, has 3 confirmed planets.
Measured
Distance about 55.4 light-years
Star's spectral type K0.5 V
Confirmed planets 3 How far, from the Sun About 55.4 light-years. To cross it:
Light 55.4 yearsVoyager 1's speed 984,000 yearsDriving at 100 km/h 598 million yearsVoyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
How it was found First planet found in 2008, by radial velocity (NASA Exoplanet Archive). Its planets HD 7924 b — about 2,100 times Earth's mass; its year lasts 5 days; about 550 °C, hotter than boiling water; found in 2008 by radial velocity. HD 7924 d — about 1,600 times Earth's mass; its year lasts 24 days; about 230 °C, hotter than boiling water; found in 2015 by radial velocity. HD 7924 c — about 1,800 times Earth's mass; its year lasts 15 days; about 310 °C, hotter than boiling water; found in 2015 by radial velocity. The NASA Exoplanet Archive's page
Where this comes from NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program. Every catalogue Ouranos draws is credited on the credits page .