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The sunspot number record covers over three centuries.These numbers measurethe activity of the Sun. This activity follows the solar cycle of about elevenyears. In the dynamo-theory, the interaction between differential rotation andconvection produces the solar magnetic field. On the surface of Sun, this fieldconcentrates to the sunspots. The dynamo-theory predicts that the period, theamplitude and the phase of the solar cycle are stochastic. Here we show thatthe solar cycle is deterministic, and connected to the orbital motions of theEarth and Jupiter. This planetary-influence theory allows us to model the wholesunspot record, as well as the near past and the near future of sunspotnumbers. We may never be able to predict the exact times of exceptionallystrong solar flares, like the catastrophic Carrington event in September 1859,but we can estimate when such events are more probable. Our results alsoindicate that during the next decades the Sun will no longer help us to copewith the climate change. The inability to find predictability in somephenomenon does not prove that this phenomenon itself is stochastic.

Sunspot cycles are connected to the Earth and Jupiter