About this world
KOI-1843.03 is an Earth-sized planet orbiting Kepler-974, a cool red dwarf 438 light-years from Earth. It is about 0.61 times the size of Earth and holds 8 Earth masses. It completes an orbit every 4.25 hours at 0.005 AU from its star, closer than Mercury is to the Sun.
Its equilibrium temperature is about 1,654 K (1,381 °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 2013 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction. Kepler-974 has 2 known planets; the others are Kepler-974 b.