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hyperphysics

Circular orbit

Gravity supplies the necessary centripetal force to hold a satellite in orbit about the earth. The circular orbit is a special case since orbits are generally ellipses, or hyperbolas.

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http://hyperphysics.phy-astr.gsu.edu/hbase/orbv.html#co

Orbit Xplorer

Orbit simulator software for school and college students and teachers. The orbit simulator allows laboratory exercises on gravitational physics, elliptical orbits, double stars, escape velocity, ...

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http://www.ottisoft.com/orbit_x.htm
hyperphysics

Orbit Concepts

Section of the excellent hyperphysics site dealing with orbits and the concepts connected to this.

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http://hyperphysics.phy-astr.gsu.edu/hbase/orbit.html#orbcon

Basics of the Geostationary Orbit

Detailed analysis of geostationary orbits, includees diagrams and the original 1945 description from Arthur C Clarke.

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Hits: 700

http://celestrak.com/columns/v04n07/

Satellite orbits

Student selects satellite velocity to try to keep satellite in earth orbit

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Hits: 945

http://lectureonline.cl.msu.edu/~mmp//kap7/orbiter/orbit.htm

Proper Time in Circular Orbits

Orbits in gravitational fields

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Hits: 745

http://mathpages.com/rr/s6-04/6-04.htm

Gravity and Orbits

A simulation to show how gravity affects orbits

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Hits: 580

http://phet.colorado.edu/en/simulation/gravity-and-orbits
hyperphysics

Orbit Velocity

This site takes you through the calculation of an orbit velocity.

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Hits: 862

http://hyperphysics.phy-astr.gsu.edu/hbase/orbv3.html#ov

Geostationary Orbit

Definition of a geostationary orbit with some accompanying calculations.

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Hits: 646

http://scienceworld.wolfram.com/physics/GeostationaryOrbit.html

Where, oh where, does that planet go?

An elementary quiz based on the position and orbits of the planets.

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Hits: 1285

http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/planet_go.html
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