What are the two current major approaches to detecting extrasolar planets indirectly??

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asked Jan 2, 2017 89.0k views

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Gordon Bean · Answer 1 · 2017-01-08T20:31:42+0000

Watching the light level dip as a planet moves across its star at a regular interval. Analyzing Spectra from the surface of the star in which matter may have been accreted onto it.. i. e. Carbon or heavier elements like tin.

What are the two current major approaches to detecting extrasolar planets indirectly??

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