 The planet's minimum mass is one fifth that of Jupiter, and it orbits the star in a very eccentric orbit about every two months.On January 16, 2003, a team of astronomers (led by Geoff Marcy) announced the discovery of an extrasolar planet around 54 Piscium using the radial velocity method, a process utilizing the "wobbling" effect that a star may experience if something is tugging on it.The planet has been estimated to have a mass of only 20 percent that of Jupiter (making the planet around the same size and mass of Saturn).