Jovian vs. Terrestrial Planets
- The characteristics of the four closest planets to the
Sun are much different than those of the outer planets.
- Terrestrial Planets
- Mercury, Venus, Earth, Mars (Inner Planets)
- Small (about the size of the Earth)
- Rocky, usually with large iron cores
- Thin Carbon Dioxide or Nitrogen atmospheres
- Three satellites (one for Earth and two for Mars) in total.
- Jovian Planets
- Jupiter, Saturn, Uranus, Neptune (Outer Planets)
- Large (about 10 times the size of the Earth)
- No solid surface -- ``Gas Giants''
- Composition -- Hydrogen and Helium with traces/clouds of Methane, Water, Ammonia, and other complex molecules.
- More than one hundred satellites most made primarily of ice