About this world
Gl 725 A b is a super-Earth orbiting Gl 725 A, a cool red dwarf (type M3) 11.5 light-years from Earth. It is about 1.5 times the size of Earth (its size estimated from its mass), with at least 2.8 Earth masses (a minimum, measured by radial velocity). It completes an orbit every 11.2 days at 0.068 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 376 K (103 °C): too cold for liquid water on its surface. By the "cosmic shoreline", it has likely held on to an atmosphere.
It was discovered in 2025 by radial velocity with Multiple Observatories. The star wobbles toward and away from us, Doppler-shifting its spectrum.