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55 Cancri
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55 Cancri (/?kæ?kra?/ or /?kæ?kri?/) (abbreviated 55 Cnc) is a binary star approximately 41 light-years away from Earth in the constellation of Cancer. The system consists of a G-type star (designated 55 Cancri A, also named Copernicus) and a smaller red dwarf (55 Cancri B). As of 2015, five extrasolar planets (designated 55 Cancri b, c, d, e and f; named Galileo, Brahe, Lipperhey, Janssen and Harriot, respectively) are believed to orbit 55 Cancri A. Nomenclature 55 Cancri is the system's F...