4 Ursae Majoris b is a gas giant planet discovered on March 28th, 2007. It orbits the star 4 Ursae Majoris and it is approximately 252 light-years away from Earth. 4 Ursae Majoris b has a minimum mass over 7 times that of Jupiter. The planet orbits at 0.87 AU from the star in a eccentric path.