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Astronomy -- Orbital Motion

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View Resource Oribital Elements: Describing an Orbit About the Sun in 3D

This animation illustrates the standard elements used to describe a 3D orbit of an object (such as an asteroid) about the Sun

http://phys23p.sl.psu.edu/phys_anim/astro/orbital_elements.a...
View Resource Seasons

This animation shows how the occurrence of seasons arises from the tilt of the earth's rotation axis and the orbit of the earth about the sun.

http://phys23p.sl.psu.edu/phys_anim/astro/seasons.avi
View Resource The Earth and Moon Orbit Each Other as they Orbit the Sun

This animation depicts the Earth and Moon orbiting each other, then pans back to show how the Earth-Moon system orbits the Sun.

http://phys23p.sl.psu.edu/phys_anim/astro/ems2.avi
View Resource The Moon's Path around the Sun (object size exaggerated)

This animation depicts the Earth and Moon orbiting each other, then pans back to show how the Earth-Moon system orbits the Sun. Although the size of the Sun, Earth and moon are exaggerated, the orbits are to scale.

http://phys23p.sl.psu.edu/phys_anim/astro/mos.avi

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