Astronomy & Space Science · AST-621
Exoplanet Demographics, Rogue Worlds & Circumbinary Planets: Foundations
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Overview
Core model: Exoplanet Demographics, Rogue Worlds & Circumbinary Planets
Exoplanet demographics studies planet occurrence as a function of size, mass, period, stellar type, metallicity, and system architecture. Surveys reveal that planetary systems are extraordinarily diverse and include compact multiplanet systems, planets orbiting binaries, and likely free-floating or rogue planetary-mass objects.
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References & evidence
Source library for this chapter
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- 01Exoplanet FactsOpen source ↗
NASA Science
View claim-by-claim traceability3 verified claims
Exoplanet demographics studies planet occurrence as a function of size, mass, period, stellar type, metallicity, and system architecture.
supported · checked Sep 22, 2026Observed demographics reflect formation efficiency, disk evolution, migration, dynamical instability, atmospheric loss, and stellar environment.
supported · checked Sep 22, 2026Kepler and TESS establish high occurrence rates for small close-in planets, microlensing probes colder planets and unbound candidates, and circumbinary transits demonstrate stable planetary orbits around stellar pairs.
supported · checked Sep 22, 2026