About this world
TOI-1749 b is a super-Earth orbiting TOI-1749, a cool red dwarf (type M0V) 325 light-years from Earth. It is about 1.4 times the size of Earth and holds 57 Earth masses. It completes an orbit every 2.39 days at 0.029 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 831 K (558 °C): far too hot for liquid water on its surface. By the "cosmic shoreline", it has likely held on to an atmosphere.
It was discovered in 2021 by transit with Transiting Exoplanet Survey Satellite (TESS). A planet crosses its star and dims it by a tiny, periodic fraction. TOI-1749 has 3 known planets; the others are TOI-1749 c and TOI-1749 d.