The planet orbits a (
M-type)
red dwarf star named
K2-72, orbited by a total of four planets, of which
K2-72e has the longest orbital period. The star has a mass of 0.27 and a radius of 0.33 . It has a temperature of 3360
K and its age is unknown. In comparison, the
Sun is 4.6 billion years old and has a surface temperature of 5778 K. The star's
apparent magnitude, or how bright it appears from Earth's perspective, is 15.309. Therefore, it is too dim to be seen with the naked eye and can only be observed with a telescope. == Discovery ==