HD 212301 is a star with 1.55 times the mass of the Sun, and 1.16 times its radius. It is located 176.88 light years away from the solar system and is estimated to be 1 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
HD 212301 is known to have 1 exoplanets in orbit around it.
HD 212301 b was discovered by the La Silla Observatory observatory, in 2006-05, using the radial velocity method. Its semi-major axis is 0.03 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of HD 212301 b is 162.180 times the mass of Earth. The radius of HD 212301 b is 14.200 that of Earth. At more than 50 Earth masses, HD 212301 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn in our solar system.