| 7 | | == Distance == |
| | 7 | == Solar System == |
| | 8 | |
| | 9 | '''Saturn'''[http://solarsystem.nasa.gov/planets/profile.cfm?Object=Saturn 1] [http://en.wikipedia.org/wiki/Saturn 2] [[BR]] |
| | 10 | |
| | 11 | * 30 year orbit, on average 900 million miles from the Sun[[BR]] |
| | 12 | * 10 hour rotation[[BR]] |
| | 13 | * about 10 times Earth's diameter[[BR]] |
| | 14 | * you could pack about 500 Earths inside Saturn (hard to find the exact number--look up sphere packing and enter a world of pain)[[BR]] |
| | 15 | * has at least 61 moons[[BR]] |
| | 16 | * average density is below that of liquid water[[BR]] |
| | 17 | * composed of 96% Hydrogen, 3% Helium[[BR]] |
| | 18 | * upper atmosphere temperature is -290 deg F[[BR]] |
| | 19 | * the rings span 175,000 miles, 3/4 the Earth-Moon distance[[BR]] |
| | 20 | * the rings are made of water ice particles ranging size from microns to cars[[BR]] |
| | 21 | * the rings were probably formed in the early Solar System from the remains of a destroyed moon[[BR]] |
| | 22 | * the rings have a complex structure of gaps and subdivisions created by gravitational interaction with Saturn's moons and moonlets[[BR]] |
| | 23 | |
| | 24 | '''Titan'''[http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sat_Titan 1] [http://en.wikipedia.org/wiki/Titan_(moon) 2] [[BR]] |
| | 25 | |
| | 26 | * slight less than half the diameter of Earth, and slightly bigger than Mercury[[BR]] |
| | 27 | * 16 day orbit around Saturn[[BR]] |
| | 28 | * a dense atmosphere composed of 98% Nitrogen, with an orange smog made of organic compounds, that may partially resemble that of early Earth[[BR]] |
| | 29 | * air pressure at the surface is 1.5 times that on Earth -- like being at the bottom of a swimming pool[[BR]] |
| | 30 | * surface temperature is -290 F[[BR]] |
| | 31 | * has Methane versions of rain, snow, seas, rivers, and lakes[[BR]] |
| | 32 | * like on Earth, geological activity is driven by radioactive heat from the core[[BR]] |
| | 33 | * has "cryovolcanoes" -- volcanoes that spew ammonia and water instead of magma[[BR]] |
| | 34 | |
| | 35 | == Stars == |
