CHXR 73 is a star in the constellation Chamaeleon, about 620 light-years away from Earth.

[5] It has a low temperature of 3,490 K typical of red dwarfs, but unlike typical red dwarfs it has an unusually large radius of 0.83 R☉—this is because of its young age, only 8 million years.

[3] A companion, CHXR 73 b, has been found via direct imaging.

[7] This is close to the upper mass limit for planets, making its classification difficult.

[citation needed] This article about a red dwarf is a stub.