Tags: Star.
XO-2 (XO-2B to be precise cf. next paragraph) is a cooler Sun-like star located approximately 480 light-years away from Earth in the Lynx constellation. It has a magnitude of 11 and cannot be seen with the naked eye but is visible through a small telescope. This star is also notable for its large proper motion.This star (XO-2B the northernmost star) is in a very wide binary star system with a nearly identical star (XO-2A the southernmost star) at a separation of approximately 4600 AU.