The Earth and Beyond

The Earth and Beyond



Physical data of planets in the solar system
Types of orbit of artificial satellites around Earth
Movements and orbits of planets and moons are determined by gravitational forces
How the solar system was formed
About meteors and meteorites


Physical data of the planets in the Solar System

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
mean distance from Sun (Earth = 1) 0.387 0.723 1 1.524 5.203 9.539 19.19 30.061 39.529
time taken to orbit Sun (years) 0.24 0.62 1 1.88 11.86 29.46 84.01 164.79 248.54
equatorial radius (km) 2439 6052 6378 3397 71490 60268 25559 25269 1160
mass of planet (Earth = 1) 0.06 0.82 1 0.11 317.89 95.18 14.53 17.14 0.002
number of observed satellites 0 0 1 2 16 18 15 ...