LP 791-18

LP 791-18 (TOI-736) is a cool M dwarf star in the constellation Crater, located 26.65 parsecs (86.9 light-years) away from Earth.

[5] In 2019 two exoplanets in transit around it were announced by TESS,[3] and a third planet was discovered in Spitzer Space Telescope data in 2023.

[3] The middle planet, d, is an Earth-mass world discovered in 2023.

It may potentially be tidally heated by interactions with planet c, which would lead to abundant volcanoes similar to Jupiter's moon Io.

[6] In 2021 planet c was suggested for atmospheric analysis by the James Webb Space Telescope.