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List of multiplanetary systems

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Title: List of multiplanetary systems  
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List of multiplanetary systems

Number of extrasolar planet discoveries per year through September 2014. Colors indicate method of detection.
  timing
  direct detection

From the total of 1257 stars known to have exoplanets (as of November 1), there are a total of 490 known multiplanetary systems,[1] or stars with at least two confirmed planets, beyond our Solar System. About 280 of these have only two confirmed exoplanets, but some have a significantly larger number. The star with the most confirmed planets is our Sun with 8 confirmed planets, while the stars with the most confirmed exoplanets are Kepler-90 and HD 10180 with 7 confirmed planets each; in 2012, two more exoplanet candidates have been suggested for HD 10180, which would bring the total to 9 exoplanets in that system.

The 490 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 our 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 it determines how these planetary systems form. The higher mass and metallicity tend to have more planets and more massive planets.

Contents

  • Multiplanetary systems 1
  • Stars orbited by both planets and brown dwarfs 2
  • Planetary system statistics 3
  • See also 4
  • References 5

Multiplanetary systems

Color indicates number of planets
2 3 4 5 6 7 8
  • Need to be added: Gliese 433, Gliese 785, HD 136352, Gliese 439, Gliese 253, HD 7449, HIP 49067, UZ Fornacis

Stars orbited by both planets and brown dwarfs

Stars orbited by objects on both sides of the 13 Jupiter mass dividing line.

Planetary system statistics

Planets
per star
Number
of stars
Star list
8 1
7 2
6 2
5 15
4 49
3 98
2 ~300

See also

For links to specific lists of extrasolar planets see:

Online archives:

References

  1. ^ Schneider, Jean (10 September 2011). "Interactive Extra-solar Planets Catalog".  
  2. ^ "[1310.5771] Characterization of the KOI-94 System with Transit Timing Variation Analysis: Implication for the Planet-Planet Eclipse". arxiv.org. 
  3. ^ http://www.openexoplanetcatalogue.com/system.html?id=Kepler-65
  4. ^ "[1501.06227] An ancient extrasolar system with five sub-Earth-size planets". arxiv.org. 
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