Mercury 57910 k.m. Radius 2440 Mass 3.30e23 Density 5.43 g/cm3 Composotion not Known Surface terrestrial/rocky Temperature 440 K Orbit eccentric Year 87.97 days Mercury is the closest planet to the Sun and the eighth largest.It has been visited by only one spacecraft, Mariner 10. Only 45% of the surface was mapped. Venus 108200 k.m Radius 6052 Mass 4.87e24 Density 5.24 g/cm3 Composotion CO2 , N2 Surface terrestrial/rocky Temperature 730 K Orbit nearly circular Year 224.7 days Venus is the second planet from the Sun and the sixth largest. It is the brightest object in the sky except for the Sun and the Moon. Earth 149600 k.m. Radius 6378 Mass 5.97e24 Density 5.52 g/cm3 Composotion O2, N2, Ar Surface terrestrial/rocky Temperature 287 K Orbit nearly circular Year 365.26 days Earth is the third planet from the Sun,the densest and fifth largest major body in the solar system.It is the only planet whose English name does not derive from Greek/ Roman mythology. Mars 227940 k.m. Radius 3397 Mass 6.42e23 Density 3.93 g/cm3 Composotion CO2, N2, Ar Surface terrestrial/rocky Temperature 218 K Orbit Highly elliptical Year 686.98 days Mars is the fourth planet from the Sun and the seventh largest. Except for Earth, Mars has the most highly varied and interesting terrain of any of the terrestrial planets. Jupiter 778330 k.m. Radius 71492 Mass 1.90e27 Density 1.33 g/cm3 Composotion H2, He Surface jovian/gas Temperature 120 K Orbit highly eccentric Year 4332.71 days Jupiter is the fifth planet from the Sun and by far the largest and fourth brightest object . It is more than twice as massive as all the other planets combined (318 times Earth). Saturn 778330 k.m. Radius 60268 Mass 5.68e28 Density .69g/cm3 Composotion H2, He Surface jovian/gas Temperature 88 K Orbit highly eccentric Year 10759.50 days Saturn is the sixth planet from the Sun and the second largest. It is the least dense of the planets. Uranus 2870990 k.m. Radius 25559 Mass 8.68e25 Density 1.32 g/cm3 Composotion H2, He, CH4 Surface jovian/gas Temperature 59 K Orbit ecliptic Year 30685 days Uranus is the seventh planet from the Sun and the third largest (by diameter). It the first planet discovered in modern times. Neptune 4504300 k.m. Radius 24766 Mass 1.02e26 Density 1.64 g/cm3 Composotion H2, He, CH4 Surface jovian/gas Temperature 48 K Orbit eccentric Year 60190 days Neptune is the eighth planet from the Sun and the fourth largest (by diameter). It has an internal heat source -- it radiates about twice as much energy as it receives from the Sun. Pluto 5913520 k.m. Radius 1137 Mass 1.27e22 Density 2.06 g/cm3 Composotion N2, CH4, CO Surface not known yet Temperature 37 K Orbit highly eccentric Year 90800 days Pluto is the farthest planet from the Sun (usually) and by far the smallest. It rotates from the opposite direction from most of the other planets.It is the only planet that has not been visited by a spacecraft.

Solar Planet System :
A tour to our nine planets


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