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List of multiplanetary systems

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The following are lists of stars with confirmed extrasolar planets. Note that the masses of the planets are (for the most part) lower bounds only. If a planet is detected by the spectral line displacement method, no information is gained about the inclination of the planet's plane of orbit around its star, and a value for this is needed to calculate the mass. It has become customary to arbitrarily assume that the plane is exactly lined up with the line of sight from Earth (this produces the lowest possible mass consistent with the spectral line measurements). The planets are listed with indications of their approximate masses as multiples of Jupiter's mass (MJ, = 1.898 x 10 kg) or multiples of Earth's mass (ME, = 5.9737 x 10 kg), and some also have approximate distances in astronomical units (1 AU = 1.496 x 10 km) from their parent stars. For more information on how planets may be detected, see extrasolar planet.


Main sequence stars

StarMass of planet, distance from primary, and orbital period
(if known)
mu Arae 14 ME (<2 AU)
HD 83443 .35 MJ
.16 MJ
HD 16141 .215 MJ
HD 168746 .24 MJ
HD 46375 .249 MJ
HD 108147 .34 MJ
HD 75289 .42 MJ
51 Pegasi .47 MJ (0.25AU)
BD -10 3166 .48 MJ
HD 6434 .48 MJ
HD 187123 .52 MJ
HD 209458 .69 MJ
Upsilon Andromedae .71 MJ (0.06AU)
2.11 MJ (0.83AU)
4.61 MJ (2.5AU)
GSC 02652-01324
2MASS 19040985+3637574
TrES-1: .75 MJ (0.0393AU) (3.030065 days)
HD 192263 .76 MJ
Epsilon Eridani .86 MJ
HD 38529 .81 MJ
HD 179949 .84 MJ
55 Cancri .84 MJ (0.25AU)
>5? MJ
HD 82943 .88 MJ
1.63 MJ
HD 121504 .89 MJ
HD 37124 1.04 MJ
HD 130322 1.08 MJ
Rho Coronae Borealis 1.1 MJ (0.5AU)
HD 52265 1.05 MJ
HD 177830 1.28 MJ
HD 217107 1.282 MJ
HD 210277 1.24 MJ
HD 27442 1.43 MJ
16 Cygni B 1.5 MJ (1.5AU)
HD 74156 1.56 MJ
>7.5 MJ
HD 134987 1.58 MJ
HD 160691 1.97 MJ
HD 19994 2.0 MJ
GJ 876 (Gliese 876) 1.98 MJ
.56 MJ
HD 92788 3.8 MJ
HD 8574 2.23 MJ
HR 810 2.24 MJ
47 Ursae Majoris 2.54 MJ (2AU)
.76 MJ
HD 12661 2.83 MJ
HD 169830 2.94 MJ
14 Herculis 3.3 MJ
GJ 3021 3.37 MJ
HD 80606 3.90 MJ
HD 195019 3.43 MJ
HD 213240 3.7 MJ
GJ 86 4 MJ
Tau Boötis 3.87 MJ (0.25AU)
HD 50554 4.9 MJ
HD 190228 4.99 MJ
HD 168443 7.2 MJ
17.1 MJ
HD 222582 5.4 MJ
HD 28185 5.6 MJ
HD 178911 B 6.47 MJ
HD 10697 6.59 MJ
70 Virginis 6.6 MJ (0.5AU)
HD 106252 6.81 MJ
HD 89744 7.2 MJ
HD 141937 9.7 MJ
HD 11476211 MJ (0.5AU)

Other stars

StarMass of planet, distance from primary, and orbital period
(if known)
PSR B1620-26PSR B1620-26c: (2.1 MJ) (23 AU) (100 years)
PSR 1257+12 PSR 1257+12 A: (0.015 ME) (0.19 AU) (25.34 days)
PSR 1257+12 B: (3.4 ME) (0.36 AU) (66.54 days)
PSR 1257+12 C: (2.8 ME) (0.47 AU) (98.22 days)

See also

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