CHXR 73 B is one of the smallest companion objects ever seen
A research team led by a Penn State University astronomer has used NASA's Hubble Space Telescope to discover and photograph one of the smallest objects ever seen around a normal star beyond our Sun. Weighing in at 12 times the mass of Jupiter, the object is small enough to be a planet. The conundrum is that it's also large enough to be a brown dwarf, a failed star.