Astronomers have opened the fifth planet in 55 Cancri star system. Thus, 55 Cancri has set up a record among all known systems (except for Solar) by numbery of planets. The new planet is the fourth under the account from the star, stands from it on 117 million kilometers and makes a full turn during 260 days. Its weight is in 45 times more weights of the Earth; on structure it is presumably similar to Saturn. The planet is located in potentially manned zone: there it is not too hot or too cold, and the water can exist as a liquid on firm surfaces. It is not excluded, that the planet, as well as gas giants of our system, has big satellites consisting of rocks and having liquid water on its surface.