WISEP J121756.91+162640.2 A is a star with 0.03 times the mass of the Sun, and 0.09 times its radius. It is located NaN light years away from the solar system and is estimated to be 6 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
WISEP J121756.91+162640.2 A is known to have 1 exoplanets in orbit around it.
WISEP J121756.91+162640.2 A b was discovered by the W. M. Keck Observatory observatory, in 2012-10, using the imaging method. Its semi-major axis is 8.00 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of WISEP J121756.91+162640.2 A b is 6996.000 times the mass of Earth. The radius of WISEP J121756.91+162640.2 A b is 10.468 that of Earth. At more than 50 Earth masses, WISEP J121756.91+162640.2 A 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.