About this world
DMPP-3 A b is a super-Earth orbiting DMPP-3 A, an orange dwarf (type K0V) 153 light-years from Earth. It is about 1.4 times the size of Earth (its size estimated from its mass), with at least 2.7 Earth masses (a minimum, measured by radial velocity). It completes an orbit every 5.59 days at 0.06 AU from its star, closer than Mercury is to the Sun, on a strongly elongated orbit (e = 0.42).
Its equilibrium temperature is about 854 K (581 °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.
It was discovered in 2019 by radial velocity with La Silla Observatory. The star wobbles toward and away from us, Doppler-shifting its spectrum.