Wolf 503 is a star with 0.69 times the mass of the Sun, and 0.69 times its radius. It is located 145.22 light years away from the solar system and is estimated to be 11 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
Wolf 503 is known to have 1 exoplanets in orbit around it.
Wolf 503 b was discovered by the K2 observatory, in 2018-11, using the transit method. Its semi-major axis is 0.06 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of Wolf 503 b is 4.770 times the mass of Earth. The radius of Wolf 503 b is 2.030 that of Earth. With a mass below 5 Earth masses, a density of 3.14, and a semi-major axis of 0.0571 astronomical units, Wolf 503 b could, potentially, be an ocean world - a planet with no dry land.