the first series of extrasolar planets that were discovered were found by the method radial velocity variations.
the first series of extrasolar planets that were discovered were found by the method radial velocity variations.
the first series of extrasolar planets that were discovered were found by which method?
radial velocity variations
the first planet was discovered in 2001 from the lick and keck observatories using precision measurements of the star's radial velocity variations. the periodicity in this variation allowed astronomers to extract information about the planet's orbit and minimum mass. a second planet was discovered by the same team two years later. both planets are greater in mass than jupiter.









































the system is dynamically unstable. "either this system is being observed during a relatively rare state, or additional planets are affecting the observed radial velocities and/or the system’s secular eccentricity evolution."









































section::::see also.









































bullet::::- list of extrasolar planets









































section::::external links.
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extrasolar planets encyclopaedia









































the extrasolar planets encyclopaedia is an astronomy website, founded in paris, france at the meudon observatory by jean schneider in february 1995, which maintains a database of all the currently known and candidate extrasolar planets, with individual pages for each planet and a full list interactive catalog spreadsheet. the main catalogue comprises databases of all of the currently confirmed extrasolar planets as well as a database of unconfirmed planet detections. the databases are frequently updated with new data from peer-reviewed publications and conferences.
extrasolar planets encyclopaedia