List of multiplanetary systems

Exoplanet candidates around stars

  • We know the solar system eight planets,
  • While in the distant planetary systems usually only a planet is detected. In 127 systems, there are two planetary,
  • In 27 systems of three planets,
  • In 9 systems, each with four planets
  • In 5 systems five planets
  • Systems in four of six planets,
  • And in the system Kepler -90 planetary seven

This companion distant stars are also called exoplanets. Their mass is usually between 0.1 and 10 Jupiter masses, but could in the past few years, several units were discovered, whose size is similar to Earth. Most known exoplanets orbit their central star closer than the planets in the solar system.

Abbreviations of References: EPE = "The Extrasolar Planets Encyclopaedia ", CNE = " Catalog of Nearby Exoplanets "

Planets around pulsars

So far, four planetary two Pulsarsystemen are known. The planet PSR B1620 - 26c is in orbit around a pulsar and a white dwarf orbiting a common center of gravity.

Planets around brown dwarfs

So far, two brown dwarfs are known to have a planetary system.

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