14 Multi-Planet Systems
sorted by increasing star mass
as of March 2010
|
Star |
Type |
MSOL |
[Fe/H] |
Age (Gyr) |
Dist. (pc) |
P |
Mass |
a (AU) |
e |
Per. (days) |
|
GJ 581 1 |
M3 |
0.31 |
-0.26 2 |
2+ |
6.27 |
e |
1.94 E |
0.03 |
0 |
3.1 |
|
GJ 581 1 |
M3 |
0.31 |
-0.26 2 |
2+ |
6.27 |
b |
15.7 E |
0.04 |
0 |
5.4 |
|
GJ 581 1 |
M3 |
0.31 |
-0.26 2 |
2+ |
6.27 |
c |
5.36 E |
0.07 |
0.17 |
12.9 |
|
GJ 581 1 |
M3 |
0.31 |
-0.26 2 |
2+ |
6.27 |
d |
7.09 E |
0.22 |
0.38 |
66.8 |
|
GJ 876 3 |
M4 |
0.32 |
+0.02 2 |
1-5 |
4.70 |
d |
6.30 E |
0.02 |
0.14 |
1.94 |
|
GJ 876 |
M4 |
0.32 |
+0.02 2 |
- |
4.70 |
c |
0.83 J |
0.13 |
0.27 |
30.3 |
|
GJ 876 |
M4 |
0.32 |
+0.02 2 |
- |
4.70 |
b |
2.64 J |
0.21 |
0.03 |
61 |
|
HD 40307 4 |
K2 |
0.77 |
-0.31 |
2.60 |
12.80 |
b |
4.2 E |
0.05 |
0 |
4.31 |
|
HD 40307 3 |
K2 |
0.77 |
-0.31 |
2.60 |
12.80 |
c |
6.8 E |
0.08 |
0 |
9.62 |
|
HD 40307 3 |
K2 |
0.77 |
-0.31 |
2.60 |
12.80 |
d |
9.2 E |
0.13 |
0 |
20.5 |
|
HD 181433 5 |
K3 |
0.78 |
+0.33 |
- |
26.15 |
b |
7.5 E |
0.08 |
0.39 |
9.37 |
|
HD 181433 4 |
K3 |
0.78 |
0.33 |
- |
26.15 |
c |
0.64 J |
1.76 |
0.28 |
962 |
|
HD 181433 4 |
K3 |
0.78 |
0.33 |
- |
26.15 |
d |
0.54 J |
3.00 |
0.48 |
2172 |
|
HD 37124 |
G4 |
0.83 |
-0.44 |
10.12 |
33.24 |
b |
0.64 J |
0.53 |
0.06 |
154 |
|
HD 37124 |
G4 |
0.83 |
-0.44 |
10.12 |
33.24 |
d |
0.62 J |
1.64 |
0.14 |
844 |
|
HD 37124 |
G4 |
0.83 |
-0.44 |
10.12 |
33.24 |
c |
0.68 J |
3.19 |
0.20 |
2295 |
|
HD 69830 |
K0 |
0.87 |
-0.06 |
12.04 |
12.58 |
b |
10.2 E |
0.08 |
0.10 |
8.67 |
|
HD 69830 |
K0 |
0.87 |
-0.06 |
12.04 |
12.58 |
c |
11.9 E |
0.19 |
0.13 |
31.6 |
|
HD 69830 |
K0 |
0.87 |
-0.06 |
12.04 |
12.58 |
d |
18.2 E |
0.63 |
0.07 |
197 |
|
55 Cancri |
G8, M4 |
0.92 |
+0.32 |
7.24 |
12.53 |
e |
7.47 E |
0.04 |
0.26 |
2.79 |
|
55 Cancri |
G8, M4 |
0.92 |
+0.32 |
7.24 |
12.53 |
b |
0.82 J |
0.11 |
0.02 |
14.7 |
|
55 Cancri |
G8, M4 |
0.92 |
+0.32 |
7.24 |
12.53 |
c |
0.17 J |
0.24 |
0.05 |
44.4 |
|
55 Cancri |
G8, M4 |
0.92 |
+0.32 |
7.24 |
12.53 |
f |
0.14 J |
0.78 |
0.00 |
261 |
|
55 Cancri |
G8, M4 |
0.92 |
+0.32 |
7.24 |
12.53 |
d |
3.84 J |
5.84 |
0.06 |
5370 |
|
61 Virginis 6 |
G5 |
0.95 |
+0.05 |
6.3o |
8.52 |
b |
5.10 E |
0.05 |
0.12 |
4.22 |
|
61 Virginis |
G5 |
0.95 |
+0.05 |
6.3o |
8.52 |
c |
18.2 E |
0.22 |
0.14 |
38 |
|
61 Virginis |
G5 |
0.95 |
+0.05 |
6.3o |
8.52 |
d |
22.9 E |
0.48 |
0.35 |
123 |
|
HIP 14810 7 |
G5 |
0.99 |
+0.26 |
- |
52.88 |
b |
3.88 J |
0.07 |
0.14 |
6.67 |
|
HIP 14810 5 |
G5 |
0.99 |
+0.26 |
- |
52.88 |
c |
1.28 J |
0.55 |
0.16 |
148 |
|
HIP 14810 5 |
G5 |
0.99 |
+0.26 |
- |
52.88 |
d |
0.57 J |
1.89 |
0.17 |
952 |
|
47 Ursae |
G0 |
1.08 |
+0.043 |
6.48 |
14.08 |
b |
2.53 |
2.1 |
0.03 |
1078 |
|
47 U Majoris |
G0 |
1.08 |
+0.043 |
6.48 |
14.08 |
c |
0.54 |
3.6 |
0.09 |
2391 |
|
47 U Majoris |
G0 |
1.08 |
+0.043 |
6.48 |
14.08 |
d |
1.64 |
11.6 |
0.16 |
~14000 |
|
HD 125612 9 |
G3 |
1.11 |
+0.24 |
- |
52.82 |
c |
21.3 E |
- |
- |
4.15 |
|
HD 125612 7 |
G3 |
1.11 |
+0.24 |
- |
52.82 |
b |
3.2 J |
1.2 |
0.39 |
502 |
|
HD 125612 7 |
G3 |
1.11 |
+0.24 |
- |
52.82 |
d |
7.1 J |
- |
- |
4613 |
|
Mu Arae |
G3 |
1.15 |
+0.29 |
7.96 |
15.28 |
d |
11.0 E |
0.09 |
0.17 |
9.6 |
|
Mu Arae |
G3 |
1.15 |
+0.29 |
7.96 |
15.28 |
e |
0.55 J |
0.94 |
0.07 |
311 |
|
Mu Arae |
G3 |
1.15 |
+0.29 |
7.96 |
15.28 |
b |
1.67 J |
1.51 |
0.27 |
630 |
|
Mu Arae |
G3 |
1.15 |
+0.29 |
7.96 |
15.28 |
c |
1.18 J |
3.78 |
0.46 |
2490 |
|
HD 74156 10 |
G0 |
1.24 |
+0.13 |
3.72 |
64.56 |
b |
1.80 J |
0.29 |
0.64 |
51.6 |
|
HD 74156 6 |
G0 |
1.24 |
0.131 |
3.72 |
64.56 |
d |
0.40 J |
1.03 |
0.25 |
347 |
|
HD 74156 6 |
G0 |
1.24 |
0.131 |
3.72 |
64.56 |
c |
6.00 J |
3.35 |
0.58 |
2025 |
|
Upsilon |
F8, M4 |
1.32 |
+0.15 |
3.12 |
13.47 |
b |
0.67 J |
0.06 |
0.01 |
4.6 |
|
U. Andromedae |
F8, M4 |
1.32 |
+0.15 |
3.12 |
13.47 |
c |
1.92 J |
0.83 |
0.22 |
241 |
|
U. Andromedae |
F8, M4 |
1.32 |
+0.15 |
3.12 |
13.47 |
d |
4.13 J |
2.53 |
0.27 |
1278 |
|
Star |
Type |
MSOL |
[Fe/H] |
Age (Gyr) |
Dist. (pc) |
P |
Mass |
a (AU) |
e |
Per. (days) |
1 Mayor M, Bonfils X, Forveille T, Delfosse X, Udry S, Bertaux J-L, Beust H, Bouchy F, Lovis C, Pepe F, Perrier C, Queloz D, Santos N. (2009) The HARPS search for southern
extra-solar planets XVIII. An Earth-mass planet in the GJ 581 planetary system.
Astronomy
& Astrophysics, 507: 487-494.
2 Bailey J, Butler RP, Tinney
CG, Jones HRA, O’Toole S, Carter BD, Marcy GW. (2009) A Jupiter-like planet
orbiting the nearby M dwarf GJ 832. Astrophysical Journal, 690: 743-747.
3 Correia A, Couetdic J, Laskar J, Bonfils X, Mayor M, Bertaux JL,
et al. (2010) The HARPS search for southern extra-solar
planets XIX. Characterization and
dynamics of the GJ 876 planetary system. Astronomy & Astrophysics, in
press. (For the 2 outer planets, Correia et al.
provide true masses rather than minimum masses.)
4 Mayor M, Udry S, Lovis C, Pepe F, Queloz D, Benz D, Bertaux J-L, Bouchy F, Mordasini C, Segransan D. (2009) The HARPS search for southern
extra-solar planets XIII. A planetary system with 3 Super-Earths. Astronomy
& Astrophysics, 493: 639-644.
5 Bouchy F, Mayor M, Lovis C, Udry S, Benz W, Bertaux J-L, Delfosse X, Mordasini C, Pepe F, Queloz D, Segransan D. (2009) The
HARPS search for southern extra-solar planets XVII. Super-Earth and
Neptune-mass planets in multiple planet systems HD 47186 and HD 181433. Astronomy
& Astrophysics, 496: 527-531.
6 Vogt SS, Wittenmyer RA,
Butler RP, O’Toole S, Henry GW, Rivera E, Meschiari
S, Laughlin G, et al. (2010) A Super-Earth and two Neptunes orbiting the nearby
Sun-like star 61 Virginis. Astrophysical Journal, 708: 1366-1375.
7 Wright JT, Fischer DA, Ford EB, Veras
D, Wang J, Henry GW, Marcy GW, Howard AW, Johnson JA. (2009) A third giant planet
orbiting HIP 14810. Astrophysical Journal, 699:
L97-L101.
8 Gregory PC, Fischer DA. A Bayesian periodogram finds evidence for three planets in 47 Ursae Majoris. (2010) Monthly
Notices of the Royal Astronomical Society, in press.
9 Extrasolar Planets Encyclopaedia at http://exoplanet.eu
10 Bean JL, McArthur BE, Benedict GF, Armstrong A.
(2008) Detection of a third planet in the HD 74156 system using the Hobby-Eberly Telescope. Astrophysical Journal, 672:
1202-1208.
Star – star name; Type – spectral type; Msol – star mass in units of Solar mass; [Fe/H] – star metallicity; Age – star age in billions of years; Dist. – star distance in parsecs (1 pc
= 3.26 light years); P – planet
designation; Mass – minimum planet
mass in units of Jupiter mass (J) or Earth mass (E); a – planet semimajor axis in astronomical units (AU); e – orbital eccentricity; Per. – orbital period in days.
Spectral types are taken from the SIMBAD database. Except as noted, stellar
ages follow Takeda et al. 2007; other stellar data follow Butler et al. 2006;
planet data follow Wright et al. 2009.
Comprehensive Sources
Butler RP, Wright JT, Marcy GW, Fischer DA, Vogt SS, Tinney CG, Jones HRA, Carter BD, Johnson JA, McCarthy C.
(2006) “Catalog of Nearby Exoplanets.” Astrophysical Journal, 646: 505-522.
Online database at http://www.exoplanets.org.
Takeda G, Ford EB, Sills A, Rasio
RA, Fischer DA, Valenti JA. (2007) “Structure and
Evolution of Nearby Stars with Planets II. Physical Properties of ~1000 Cool
Stars from the SPOCS Catalog.” Astrophysical Journal Supplement Series,
168: 297-318.
Wright JT, Upadhyay S, Marcy GW,
Fischer DA, Ford EB, Johnson JA. (2009) “Ten New and Updated Multi-planet
Systems, and a Survey of Exoplanetary Systems.” Astrophysical Journal, 693:
1084-1099.