These are lists of exoplanets. As of 1 November 2022, there are 5,246 confirmed exoplanets in 3,875 planetary systems, with 842 systems having more than one planet.[1] Most of these were discovered by the Kepler space telescope. There are an additional 2,054 potential exoplanets from Kepler's first mission yet to be confirmed, as well as 978 from its "Second Light" mission and 4,053 from the Transiting Exoplanet Survey Satellite (TESS) mission.[2]
This is a general list of exoplanets. For other lists, see lists of planets.
Artist's concept of the potentially habitable exoplanet Kepler-186f
For yearly lists on physical, orbital and other properties, as well as on discovery circumstances and other aspects, see §Specific exoplanet lists.
Nomenclature
Main article: Exoplanet naming convention
The convention for designating exoplanets is an extension of the system used for designating multiple-star systems as adopted by the International Astronomical Union (IAU). For exoplanets orbiting a single star, the IAU designation is formed by taking the designated or proper name of its parent star, and adding a lower case letter.[3] Letters are given in order of each planet's discovery around the parent star, so that the first planet discovered in a system is designated "b" (the parent star is considered to be "a") and later planets are given subsequent letters. If several planets in the same system are discovered at the same time, the closest one to the star gets the next letter, followed by the other planets in order of orbital size. A provisional IAU-sanctioned standard exists to accommodate the designation of circumbinary planets. A limited number of exoplanets have IAU-sanctioned proper names. Other naming systems exist.
Wright, J. T.; Fakhouri, O.; Marcy, G. W.; Han, E.; Feng, Y.; Johnson, John Asher; Howard, A. W.; Fischer, D. A.; Valenti, J. A. (2011-04-01). "The Exoplanet Orbit Database". Publications of the Astronomical Society of the Pacific. 123 (902): 412–422. arXiv:1012.5676. Bibcode:2011PASP..123..412W. doi:10.1086/659427. ISSN0004-6280. S2CID51769219.
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