ups And is a star with 1.3 times the mass of the Sun, and 1.56 times its radius. It is located 43.72 light years away from the solar system and is estimated to be 5 billion years old, as compared to the Sun which is roughly 4.6 billion years old.
ups And is known to have 3 exoplanets in orbit around it.
ups And b was discovered by the Lick Observatory observatory, in 1997-01, using the radial velocity method. Its semi-major axis is 0.06 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of ups And b is 218.657 times the mass of Earth. The radius of ups And b is 14.000 that of Earth. At more than 50 Earth masses, ups And 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.
ups And c was discovered by the Multiple Observatories observatory, in 1999-12, using the radial velocity method. Its semi-major axis is 0.83 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of ups And c is 629.958 times the mass of Earth. The radius of ups And c is 13.400 that of Earth. At more than 50 Earth masses, ups And c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn in our solar system.
ups And d was discovered by the Multiple Observatories observatory, in 1999-12, using the radial velocity method. Its semi-major axis is 2.51 astronomical units, as compared to Earth's which is 1 astronomical unit. The mass of ups And d is 1313.976 times the mass of Earth. The radius of ups And d is 13.000 that of Earth. At more than 50 Earth masses, ups And d is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn in our solar system.