Tags: Planet.
Rho Coronae Borealis b (ρ CrB b / ρ Coronae Borealis b) is an extrasolar planet approximately 57 light-years away in the constellation of Corona Borealis. The planet was discovered orbiting the Solar twin yellow dwarf star Rho Coronae Borealis in April 1997 (one of the first discovered). The planet’s distance to the star is only about one fifth Earth’s distance from the Sun. The orbit is circular and it takes 40 days to complete one revolution around the star.