An 'orbit' is the route one body follows around another body. Like the Earth follows a specific path (..'orbit'..) around the sun, the moon follows a specific route around Earth, etc.,. The orbits of most planets are elliptical instead of perfectly round. Some artificial satellites in orbit around Earth have orbits that are very close to being perfectly circular.
2007-03-20 08:20:34
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answer #1
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answered by Chug-a-Lug 7
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An orbit is the path a smaller object takes around a larger object, as dictated by the larger object's gravitational pull.
For example, the Moon's orbit around the Earth keeps the moon about 238,400 miles away from Earth; The International Space Station's orbit is about 300 miles high.
2007-03-20 08:22:19
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answer #2
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answered by quantumclaustrophobe 7
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In physics, an orbit is the path that an object makes around another object while under the influence of a source of centripetal force, such as gravity.
Orbits were first analyzed mathematically by Johannes Kepler who formulated his results in his three laws of planetary motion. First, he found that the orbits of the planets in our solar system are elliptical, not circular (or epicyclic), as had previously been believed, and that the sun is not located at the center of the orbits, but rather at one focus. Second, he found that the orbital speed of each planet is not constant, as had previously been thought, but rather that the speed of the planet depends on the planet's distance from the sun. And third, Kepler found a universal relationship between the orbital properties of all the planets orbiting the sun. For each planet, the cube of the planet's distance from the sun, measured in astronomical units (AU), is equal to the square of the planet's orbital period, measured in Earth years. Jupiter, for example, is approximately 5.2 AU from the sun and its orbital period is 11.86 Earth years. So 5.2 cubed equals 11.86 squared, as predicted.
Isaac Newton demonstrated that Kepler's laws were derivable from his theory of gravitation and that, in general, the orbits of bodies responding to the force of gravity were conic sections. Newton showed that a pair of bodies follow orbits of dimensions that are in inverse proportion to their masses about their common center of mass. Where one body is much more massive than the other, it is a convenient approximation to take the center of mass as coinciding with the center of the more massive body.
2007-03-20 09:35:46
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answer #3
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answered by Anonymous
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An orbit is a path that goes around an object without touching it while under the influence of a centripetal force like gravity..
2007-03-20 08:22:17
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answer #4
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answered by The man 7
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In astronomy it occurs when one body "orbits" or moves around another body, usually in a circle or some type of ellipse. This happens because massive bodies warp space/time. The moon orbits around the earth.
2007-03-20 08:22:46
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answer #5
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answered by Jerry H 2
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the definition of orbit is: a path described by one body in its revolution about another (as by the earth about the sun or by an electron about an atomic nucleus). so an object orbiting another is really moving in a circle or elliptical motion.
2007-03-20 12:23:52
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answer #6
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answered by mcdonaldcj 6
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An astral object like our sun..it travels around our earth and orbits it.
2007-03-20 08:34:24
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answer #7
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answered by Anonymous
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rotates around something. The moon orbits the earth. eg.
2007-03-20 08:22:27
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answer #8
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answered by Fordman 7
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2016-05-18 19:40:52
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answer #9
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answered by william 2
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it is the circulation of an object around a certain central point. In our case; the Sun.
2007-03-20 08:23:08
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answer #10
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answered by Anonymous
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