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I Great oppositions of Mars

  1. Aug 20, 2016 #1
    Why do the Great oppositions of Mars always happen at the same time of the year? What is that time?
  2. jcsd
  3. Aug 20, 2016 #2


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    Why do you think they do?
  4. Aug 21, 2016 #3
    Because Mars´ orbit is elliptic. (So is Earth´s.)
  5. Aug 21, 2016 #4


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