Be more specific??
a relatively body rotating around a large celetrial body (planet, star) in orbits. Depending on the total energy of the smaller body (in terms of altitude and velocity), the orbit could be circular, elliptical, parabolic, and hyperbolic. Where circular orbit requires least energy (slowest) and hyperbolic requires the most energy (fastest).
Hope this helps.
2007-04-12 15:29:15
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answer #1
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answered by kairvette 1
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Orbit is 1. the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
2. the usual course of one's life or range of one's activities.
3. the sphere of power or influence, as of a nation or person: a small nation in the Russian orbit.
4. Physics. (in Bohr theory) the path traced by an electron revolving around the nucleus of an atom.
5. an orb or sphere.
6. Anatomy. a. the bony cavity of the skull that contains the eye; eye socket.
b. the eye.
7. Zoology. the part surrounding the eye of a bird or insect.
–verb (used with object) 8. to move or travel around in an orbital or elliptical path: The earth orbits the sun once every 365.25 days.
9. to send into orbit, as a satellite.
–verb (used without object) 10. to go or travel in an orbit.
2007-04-12 15:24:02
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answer #2
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answered by LuvNatalie 3
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The reason objects remain in orbit (as opposed to either falling towards the object with greater mass or going into space) is because:
1. Gravity tends to pull the object in.
2. But the satellite's own forward momentum tends to counteract that effect.
When both of these effects counteract, the object remains in orbit.
In essence, what is happening is that one force pulls the satellite down, but another causes it to move forward. The "net" effect is that the satellite remains in orbit.
In order for any object from space to achieve orbit, it must have theproperties outlined above. Because that balance is so hard to achieve randomly, few objects that are not manmade achieve orbit. Humans have perfected the orbit of manmade satellites through the use of careful calculations and trajectories.
See the following site for more information, in particular the section titled 'Understanding Orbits'.
http://en.wikipedia.org/wiki/Orbit
2007-04-12 15:33:22
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answer #3
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answered by bloggerdude2005 5
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An orbit is one continuous, never ending fall. The Earth is round, so the ground is not really flat. If you are going fast enough over the ground, almost 18,000 miles per hour, then the ground curves down out from under you as fast as you fall, so you never hit the ground. You could never go that fast in the atmosphere because the wind would slow you down right away, but in the airless vacuum of space you can.
2007-04-12 15:27:55
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answer #4
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answered by campbelp2002 7
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its come from the energy of the object which orbit the other object if the energy be a positive value the orbits (for example) comes parabola if the energy value be negative the orbit it elliptic, and of course it depends on the first velocity of the object if it be more than escape velocity it makes an parabolic orbit or an straight line ( i mean by energy the potential energy (-GM1M2/r))
2007-04-12 19:11:46
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answer #5
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answered by suerena 2
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