When working with ranges it is important to know existing distances. Here is a base line on distances;
Average Distances
Contrails: 6-12km
Weather Balloon: 40km
Troposphere: 12km (lowest layer of Earth’s atmosphere)
Stratosphere: 12km to 50/55km (Second lowest layer of Earth’s atmosphere)
Mesosphere: 50km-80/85km (Third highest layer of Earth’s atmosphere)
Thermosphere: 80km-1000km
International Space Station: 330km -410km
Moon (average): 384,400km (Closest: 363,104km, Farthest: 405,696km)
Mercury from Sun: .387AU (57 million km)
Venus: .722AU (108 million km)
Earth: 1AU (150 million km)
Mars: 1.52AU (228 million km)
Jupiter: 5.2AU (779 million km)
Saturn: 9.58AU (1.43 billion km)
Uranus: 19.2AU (2.88 billion km)
Neptune: 30.1AU (4.5 billion km)
Kuiper Belt: 30-50AU
Pluto: 39.5AU (5.91 billion km)
Heliopause: 123AU (18 billion km)
OORT Cloud: 5000-100000AU
Proxima Centauri: 271,000AU (4.22ly)
Alpha Centauri A&B: 4.35AU
Milky Way: 100000 lightyears (30kpc) in diameter, 1,000 light years (0.3kpc) thick
Distance Measurements
Astronomical Unit: 149,597,871km (Average distance between earth and sun)
Light Second: 299,792,458m (distance light travels in a second)
Light Minute: 17,987,547.5km (distance light travels in a minute)
Light Hour: 1,079,252,848,800m (distance light travels in an hour)
AU per Light Year: 6,239.7263
Radio Signal speed: 300,000 km a second (travels at light speed)
Speed of Light: 300,000 km per second
Parsec (pc): 3.26 light years
Kiloparsec (kpc): 1,000 parsecs or 3,262 light years
Megaparsec (Mpc): 1,000,000 parsecs or 3.26 million light years
Gigaparsec (Gpc): 1,000,000,000 parsecs (or 1,000 Mpc) 3.26 billion light years
http://en.wikipedia.org/wiki/Light-year
http://en.wikipedia.org/wiki/Parsec
http://en.wikipedia.org/wiki/Atmosphere_of_Earth
http://en.wikipedia.org/wiki/Atmosphere_of_Earth
http://en.wikipedia.org/wiki/Atmosphere_of_Earth
http://en.wikipedia.org/wiki/Atmosphere_of_Earth
