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extrasolar planets

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How many extrasolar planets have been discovered to date. Describe two ways of detecting extrasolar planets?

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Solution Summary

Ways of determining extrasolar planets are presented briefly.

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There are two main method for detecting extra solar planets:

1- This method is particularly useful when the plane of the rotation of the planet around its star is facing us (face-on). In this case since the planet actually does not rotate around the star but both star and the planet are rotating around their center of mass (which ...

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