Tags: Star.
Rho Coronae Borealis (ρ CrB ρ Coronae Borealis) is a Solar twin yellow dwarf star approximately 57 light-years away in the constellation of Corona Borealis. The star is thought to be similar to the Sun with nearly the same mass radius and luminosity. As of 1997 an extrasolar planet has been confirmed to be orbiting the star. It is thought that the star may have a stellar companion but it may be just an optical companion.[citation needed]