In 1997, the discovery of a 51 Pegasi-like planet orbiting 55 Cancri A was announced, together with the planet of Tau Boötis and the inner planet of Upsilon Andromedae.
En 1997, anunciouse o descubrimento dun planeta semellante o que ten 51 Pegasi, orbitando 55 Cancri A, xunto co planeta de Tau Boötis e xunto cun planeta interior de Upsilon Andromedae.