About this world
GJ 486 b is a super-Earth orbiting GJ 486, a cool red dwarf (type M3.5V) 26.3 light-years from Earth. It is about 1.3 times the size of Earth and holds 2.8 Earth masses. It completes an orbit every 1.47 days at 0.017 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 696 K (423 °C): far too hot for liquid water on its surface. By the "cosmic shoreline", its star has probably stripped its atmosphere away, leaving bare rock. Its atmosphere has already been studied: 7 spectroscopic observations, all of them with the James Webb Space Telescope.
It was discovered in 2021 by radial velocity with Calar Alto Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.