Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 36 Ursae Majoris is a yellowish main sequence star of spectral type F8V. The star is 1.2 times more massive than the Sun and has a 1.2 times larger radius. Its age is around 2 billion years. The star is thought to have a stellar companion B of spectral type K7V at wide separation. An optical companion C is located at 49,000 AUs, but is probably not bound to the system. According to Nelson & Angel, 36 Ursae Majoris could host one or two jovian planets at wide separations from the host star, with orbital periods of 10-15, 25 and 50 years respectively.