Rho1 Cancri (ρ1 Cancri); 55 Cancri is the Flamsteed designation (abbreviated 55 Cnc). The system consists of a K-type star (designated 55 Cancri A, also...

55 Cancri e (abbreviated 55 Cnc e, also known as Janssen /ˈdʒænsən/) is an exoplanet orbiting a Sun-like host star, 55 Cancri A. The mass of the exoplanet...

55 Cancri b (abbreviated 55 Cnc b), occasionally designated 55 Cancri Ab (to distinguish it from the star 55 Cancri B), also named Galileo, is an exoplanet...

55 Cancri f (abbreviated 55 Cnc f), also designated Rho1 Cancri f and formally named Harriot /ˈhæriət/, is an exoplanet approximately 41 light-years away...

55 Cancri c (abbreviated 55 Cnc c), formally named Brahe (pronounced /ˈbrɑːhiː/ or /ˈbrɑː/), is an extrasolar planet in an eccentric orbit around the...

55 Cancri d (abbreviated 55 Cnc d), formally named Lipperhey /ˈlɪpərhiː/, is an extrasolar planet in a long-period orbit around the Sun-like star 55 Cancri...

its brightest star Beta Cancri having an apparent magnitude of 3.5. It contains ten stars with known planets, including 55 Cancri, which has five: one super-earth...

the new names. In December 2015, the IAU announced the winning name for 55 Cancri A was Copernicus. Copernicus is commemorated by the Nicolaus Copernicus...

star than 55 Cancri b; and the most recently discovered planet, in 2007, was named 55 Cancri f despite lying between 55 Cancri c and 55 Cancri d. As of...

stringent criteria in use in the December data. In 2011, a density of 55 Cancri e was calculated which turned out to be similar to Earth's. At the size...