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Elliptical Orbit

  1. Oct 25, 2008 #1
    1. The problem statement, all variables and given/known data
    The period of a comet orbit is 100 years. As its closests approach is 0.37 AU from the sun. What is the semi-major axis of the comet's orbit? How far does it get from the sun?


    2. Relevant equations

    (T1/T2)^2 = (s1/s2)^3

    3. The attempt at a solution
    I dont even know where to begin with this problem any help would be really appreciated.
     
  2. jcsd
  3. Oct 26, 2008 #2

    alphysicist

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    Homework Helper

    Hi myoplex,

    What does Kepler's laws have to say about periods and semi-major axis?
     
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