Jupiter is second of brightness Planet after Venus. But while Venus can be seen only for a morning or for an night, it Jupiter sometimes beacons brilliantly for entire night. Due to slow, amazing motion to this planet between the stars, the age - old greeks have given her the name of their ultimate gods Zeus. In the roman pantheon Jupiter matches to Zeus. Jupiter enacts important role in the history to the astronomy two times. That is first world of which satellites are seen. On the other hand on the other hand, Jupiter and its companions helped out One of the most ancient mysteries whether the light is broken immediately is decided or her pace is a concluding number. Between the thousands-asteroids, discovered and explored since the beginning of nineteen-century so far, it is transpired that some of them find themselves Immediate nearness to so called Lagrangian points of stability, L4 and L5 on planet Jupiter. They go nearly in its orbit and prowl around the sun with a period for nearly 12 years to two groups respectively around point L4 around point L5. all as well of these The names of the champions for the Trojan war, described in the “Iliad” of Homer, receive small Planets. The two groups of asteroids The worlds (the “Trojan asteroids”) are called Planets. These on “Trojan asteroids” that go 60° before Jupiter are being called “Greeks”, and the others, going to the 60°, after the world are being called “Trojans”.