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Lists of exoplanets

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This is a general list of exoplanets. For other lists, see lists of planets.
Artist's concept of the potentially habitable exoplanet Kepler-186f

This is a list of exoplanets. As of 23 July 2020, there are 4,197 confirmed exoplanets,[1] the majority of which were discovered by the Kepler space telescope. There are an additional 2,418 potential exoplanets from Kepler's first mission yet to be confirmed, as well as 889 from its "Second Light" mission and 1,288 from the Transiting Exoplanet Survey Satellite (TESS) mission.[2]

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 naming 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 "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.

Methods of detection

Astrometry: 1 (0.0%)Direct imaging: 50 (1.2%)Radial velocity: 810 (19.3%)Transit: 3,187 (75.9%)Transit-timing variation: 21 (0.5%)Eclipse timing variation: 16 (0.4%)Microlensing: 96 (2.3%)Pulsar timing variation: 7 (0.2%)Pulsation timing variation: 2 (0.0%)Orbital brightness modulation: 6 (0.1%)Disk kinematics: 1 (0.0%)
  •   Astrometry: 1 (0.0%)
  •   Direct imaging: 50 (1.2%)
  •   Radial velocity: 810 (19.3%)
  •   Transit: 3,187 (75.9%)
  •   Transit-timing variation: 21 (0.5%)
  •   Eclipse timing variation: 16 (0.4%)
  •   Microlensing: 96 (2.3%)
  •   Pulsar timing variation: 7 (0.2%)
  •   Pulsation timing variation: 2 (0.0%)
  •   Orbital brightness modulation: 6 (0.1%)
  •   Disk kinematics: 1 (0.0%)
Observation method for confirmed exoplanets[2]


Specific exoplanet lists

Distribution of confirmed exoplanets vs. distance from Solar System


See also

References

  1. ^ "NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 13 September 2019.
  2. ^ a b "Exoplanet and Candidate Statistics". NASA Exoplanet Archive. NASA Exoplanet Science Institute. Retrieved 13 September 2019.
  3. ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 29 January 2017.
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