WASP-29b: A Saturn-sized Transiting Exoplanet

Research output: Contribution to journalArticlepeer-review


  • C. Hellier
  • D.~R. Anderson
  • A. Collier Cameron
  • M. Gillon
  • M. Lendl
  • P.~F.~L. Maxted
  • D. Queloz
  • B. Smalley
  • R.~G. West
  • D.~J.~A. Brown
  • B. Enoch
  • T.~A. Lister
  • F. Pepe
  • D. Pollacco
  • D. Ségransan
  • S. Udry

Colleges, School and Institutes


We report the discovery of a Saturn-sized planet transiting a V = 11.3, K4 dwarf star every 3.9 days. WASP-29b has a mass of 0.24 plusmn 0.02 M $_Jup$ and a radius of 0.79 plusmn 0.05 R $_Jup$, making it the smallest planet so far discovered by the WASP survey, and the exoplanet most similar in mass and radius to Saturn. The host star WASP-29 has an above-solar metallicity and fits a possible correlation for Saturn-mass planets such that planets with higher-metallicity host stars have higher core masses and thus smaller radii.


Original languageEnglish
Pages (from-to)L60-L63
JournalAstrophysical Journal Letters
Publication statusPublished - 1 Nov 2010


  • stars: individual: WASP-29, planetary systems