Tags: Star.
Kepler-20 is a star 950 light-years from Earth in the constellation Lyra with a system of five known planets. The apparent magnitude of this star is 12.51 so it cannot be seen with the unaided eye. Viewing it requires a telescope with an aperture of 15 cm (6 in) or more. It is slightly smaller than the Sun with 94% of the Sun’s radius and about 91% of the Sun’s mass.
