To fully characterize an exoplanet's density using transit data, what other observational technique must typically be combined?

Answer

The radial velocity method

Transit data provides the volume (via radius), but combining it with mass data, usually obtained via the radial velocity method, allows scientists to infer the planet's composition.

To fully characterize an exoplanet's density using transit data, what other observational technique must typically be combined?

#Videos

How to Detect EXOPLANETS - The Transit Method - YouTube

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