- Source: List of multiplanetary systems
From the total of 4,949 stars known to have exoplanets (as of July 24, 2024), there are a total of 1007 known multiplanetary systems, or stars with at least two confirmed planets, beyond the Solar System. This list includes systems with at least three confirmed planets or two confirmed planets where additional candidates have been proposed. The stars with the most confirmed planets are the Sun (the Solar System's star) and Kepler-90, with 8 confirmed planets each, followed by TRAPPIST-1 with 7 planets.
The 1007 multiplanetary systems are listed below according to the star's distance from Earth. Proxima Centauri, the closest star to the Solar System, has three planets (b, c and d). The nearest system with four or more confirmed planets is Gliese 876, with four known. The farthest confirmed multiplanetary system is OGLE-2012-BLG-0026L, at 13,300 light-years (4,100 pc) away.
The table below contains information about the coordinates, spectral and physical properties, and the number of confirmed (unconfirmed) planets for systems with at least 2 planets and 1 not confirmed. 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 both planets and brown dwarfs
Stars orbited by objects on both sides of the ~13 Jupiter mass dividing line.
54 Piscium (HD 3651)
HD 168443
HD 4113 A
Gliese 229 A
Epsilon Indi A
HD 82943
Pi Mensae
HD 38529
HD 245134
KMT-2020-BLG-0414L
See also
Notes
References
Kata Kunci Pencarian:
- List of multiplanetary systems
- Lists of astronomical objects
- Lists of planets
- List of natural satellites
- List of exoplanets discovered before 2000
- Planetary system
- List of potentially habitable exoplanets
- Lists of stars
- CoRoT
- List of nearest terrestrial exoplanet candidates