List of multiplanetary systems


From the total of stars known to have exoplanets, there are a total of known multiplanetary systems, or stars with at least two confirmed planets, beyond the Solar System. About 280 of these have only two confirmed exoplanets, but some have a significantly larger number. The stars with the most confirmed planets are our Sun and Kepler-90 with 8 each confirmed planets, while the stars with the most confirmed exoplanets, after Kepler-90, is TRAPPIST-1, with 7 planets.
The multiplanetary systems are listed below according to the star's distance from Earth. Gliese 876, with 4 confirmed exoplanets, is the closest multiplanetary system at 15 light years from the Solar System. A total of 12 systems are known that are closer than 50 light years away, but most are much farther away. The farthest confirmed multiplanetary system is OGLE-2012-BLG-0026L, at 13,300 ly away.
The table below contains information about the coordinates, spectral and physical properties, and number of confirmed planets. The two most important stellar properties are mass and metallicity because they determine how these planetary systems form. Systems with higher mass and metallicity tend to have more planets and more massive planets. However, although low metallicity stars tend to have fewer massive planets, particularly hot-Jupiters, they also tend to have a larger number of close in planets, orbiting at less than 1 AU.

Multiplanetary systems



Stars orbited by objects on both sides of the 13 Jupiter mass dividing line.
Planets
per star
Number
of stars
Star list
--
82
  • Sun
  • Kepler-90
--
71
  • TRAPPIST-1
    		• --
    67
  • Kepler-11
  • Kepler-20
  • HD 10180
  • HD 34445
  • HD 40307
  • HIP 41378
  • HR 8832
    		• --
    516
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