Then solar system is a system comprising the sun and the astronomical bodies gravitationally bound to the Sun, the nine major planets; Mercury, Venus, earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. What

                      The Planets

               

                 Mercury orbits the sun every 88 days its long period

                  Of axial rotation 58.6 days is only two thirds of

                  its orbital period. Mercury’s surface is heavily

                  Cratered with intervening lava pools its atmosphere

                   Is very tenuous mainly helium and argon.

                    Venus orbits the sun every 225 days. Its surface  

                    Is covered by dense swirling yellowish clouds of

                    Sulphuric acid droplets and sulphur particles.

                     The atmosphere is primarily carbon dioxide the

                     Temperature is a hostile 470 degrees.

 

                     

                     Earth is the planet we know most about 70% of it

                     Is water and the rest is land.

                       Mars orbits the sun every 687 days. Mars has

                       Two small satellites. The atmosphere is 95%  

                        Carbon dioxide and is very thin. Huge canyons                                                          

                        And smaller valleys occur in the equatorial

                        Regions.

                    Jupiter orbits the sun once every 11.6 years

                    Jupiter contains mostly of hydrogen and helium

                    It has a magnetic field and radiation belts of

                     great intensity.

                       

                     Saturn orbits the sun every 29.5 years the

                     Dominant feature of Saturn are its rings they

                     Are all composed of small icy chunks. Saturn is

                     Made up of hydrogen and helium possibly with a

                     Rocky core surrounded by liquid hydrogen.

                     Uranus orbits the sun every 84 years its

                     Atmospheric and interior structures are thought

                     to be almost identical to Neptune’s. Uranus was

                     discovered in 1781 by Sir William Herschel.

                     

                     Neptune is the second smallest planet its

                      Atmospheric and interior structure is

                     identical to Neptune.

                      Pluto is the smallest planet and the farthest

                      Away from the sun it orbits the sun every

                       248 years Pluto was the last to be discovered

                      as it was discovered in the 1930 it is a very

                      cold place.