The occurrence and architecture of exoplanetary systems

Joshua N. Winn, Daniel C. Fabrycky

Research output: Contribution to journalReview articlepeer-review

628 Scopus citations


The basic geometry of the Solar System-the shapes, spacings, and orientations of the planetary orbits-has long been a subject of fascination as well as inspiration for planet-formation theories. For exoplanetary systems, those same properties have only recently come into focus. Here we review our current knowledge of the occurrence of planets around other stars, their orbital distances and eccentricities, the orbital spacings and mutual inclinations in multiplanet systems, the orientation of the host star's rotation axis, and the properties of planets in binary-star systems.

Original languageEnglish (US)
Pages (from-to)409-447
Number of pages39
JournalAnnual Review of Astronomy and Astrophysics
Issue number1
StatePublished - Aug 18 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Exoplanets
  • Extrasolar planets
  • Orbital properties
  • Planet formation


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