TOI-5624 c is the second closest of the discovered exoplanets orbiting the star TOI-5624, located approximately 331 light-years from Earth in the constellation Ursa Major. The planet was confirmed in April 2026 using the transit method.
Characteristics
Physical characteristics
The planet is classified as a sub-Neptune, with a mass of 4.8±1.9 M🜨 determined by the radial velocity method, and a radius of 2.474±0.042 R🜨 determined by the CHEOPS telescope, with an uncertainty of less than 1.7%. The object's average density is 1.72+0.70−0.69 g/cm3. Such a low value indicates a higher proportion of volatiles or a hydrogen-helium mixture in its composition.
Orbit The orbital period around its host star is approximately 7.885385±0.000018 Earth days. The semi-major axis of the orbit is estimated to be 0.07374+0.00072−0.00075 AU. The equilibrium temperature is approximately 858 K, or 584 °C.
See also List of exoplanets discovered in 2026 Methods of detecting exoplanets
References
External links Martin, Pierre-Yves (2026). "Planet TOI-5624 c". exoplanet.eu. Retrieved 2026-04-17.


