I Why do Great Oppositions of Mars Always Happen at the Same Time of Year?

AI Thread Summary
Great oppositions of Mars occur at the same time each year due to the elliptical nature of both Mars's and Earth's orbits. This predictable timing allows for optimal viewing conditions when Mars is closest to Earth. The discussion references a simulation to illustrate these orbital dynamics. Understanding these patterns enhances appreciation for astronomical events. The consistent timing of these oppositions is a fascinating aspect of planetary motion.
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Why do the Great oppositions of Mars always happen at the same time of the year? What is that time?
 
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Why do you think they do?
 
Because Mars´ orbit is elliptic. (So is Earth´s.)
 

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