The plane in which the orbit of a planet lies is referred to its "orbital plane". Each of the nine planets has its own orbital plane. The term "inclination" refers to the angle at which the orbital plane is tilted with respect to a plane that is the standard of reference. Notice that the inclination of the Earth's orbital plane is 0. Explain why.
Honestly I have no idea why the plane is 0. My only guess is that the plane is not tilted, which would make it 0, but that does not seem like it would be the answer.
2007-09-19
04:16:47
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13 answers
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asked by
Liz
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Astronomy & Space