Untitled Document
Home
See also exoExplorer Planets
Exoplanet Habitable Zone Candidates
Estimates of habitable zone migration and duration of exoplanet residency therein
This service provided by planetarybiology.com
Based on data feed from Exoplanets Encyclopaedia
Using methods from Astronomical Circumstances chapter
Note: habitable zone histories are estimated based on star mass.
Variations in spectral quality would result in variations in habitable zone migration
but are not accounted for here.
Last update: 2008-07-01
Untitled Document

r
a
n
k
Star NameStar
Dist.
(pc)
Spectral
Type
Metall-
icity
Star
Mass
(sol
mass)
Main
Sequnce
Duration
(Gyr)
Lumin-
osity
at ZAMS
(sol L)
HabZone
Inner
Radius
at ZAMS
(AU)
HabZone
Outer
Radius
at ZAMS
(AU)
Lumin-
osity
at MSE
(sol L)
HabZone
Inner
Radius
at MSE
(AU)
HabZone
Outer
Radius
at MSE
(AU)
Planet
Name
Planet
Mass
(J
mass)
Orbit of
Greatest
Opp.
(AU)
Planet
Semi
axis
(AU)
Orbital
Ecc.
Orbital
Period
(sidereal
days)
Planet Start
Category
Planet's
Residency
in Habitable
Zone
(Gyr)
0Sol0G2 V0.021100.710.8031.1571.8581.31.667Earth0.003151.15710.017365.26warm start5.53
1GL 5816.26M3-0.330.31807.9700.050.070.010.080.12Gl 581 c0.01580.070.0730.1612.932inner cold start612.43
2HD 9308328.9K3 V0.150.738.10.130.340.50.340.560.8HD 93083 b0.370.50.4770.14143.58warm start28.42
3HD 6983012.6K0V-0.050.8617.60.350.560.810.910.911.31HD 69830 d0.0580.810.630.07197warm start6.01
4HD 2036727G00.11.048.630.860.881.272.241.432.06HD 20367 b1.071.271.250.23500warm start6.78
5HD 11478322K00.330.9213.670.480.660.951.251.071.54HD 114783 b0.990.951.20.1501outer cold start5.71
6HIP 7545831.5K2 III0.031.058.330.90.91.32.341.462.1HIP 75458 b8.821.31.2750.7124511.098warm start6.5
7HD 16069115.3G3 IV-V0.281.087.491.020.961.392.681.562.25HD 160691 b1.671.391.50.31654.5inner cold start5.15
8HD 10887468.5G50.141100.710.81.161.861.31.87HD 108874 b1.361.161.0510.07395.4warm start6.45
9HD 9910960.5K00.3150.9313.130.50.680.971.321.091.58HD 99109 b0.5020.971.1050.09439.3outer cold start8.33
10HD 2307934.8F8/G0 V-0.241.16.991.121.011.452.921.632.35HD 23079 b2.611.451.650.1738.459outer cold start4.41
11HD 14193733.46G2/G3 V0.161100.710.81.161.861.31.87HD 141937 b9.71.161.520.41653.22outer cold start3.48
12HD 15070627.2G0-0.130.9412.610.530.6911.381.121.62HD 150706 b110.820.38264warm start5.7
13HD 15535842.7G0-0.680.8716.860.370.580.830.960.931.35HD 155358 b0.890.830.6280.112195warm start4.56
14HD 22258242G5-0.011100.710.81.161.861.31.87HD 222582 b5.111.161.350.76572outer cold start5.75
15HD 7352699G6 V0.281.029.280.780.841.212.041.361.96HD 73526 c2.51.211.050.14377.8warm start5.17
16HD 10077752.8K00.271100.710.81.161.861.31.87HD 100777 b1.161.161.030.36383.7warm start6.09
17HD 1069732.56G5 IV0.11.155.921.381.121.613.611.812.61HD 10697 b6.121.612.130.111077.906outer cold start2
18HD 12831116.6K00.080.823.090.250.470.680.640.771.1HD 128311 b2.180.681.0990.25448.6outer cold start0.1
19HD 14751312.9G3/G5V-0.030.9213.670.480.660.951.251.071.54HD 147513 b10.951.260.52540.4outer cold start4.5
20HD 411344G5V0.20.9910.380.680.781.131.771.271.83HD 4113 b1.561.131.280.903526.62outer cold start6.62
21HD 9278832.82G50.241.068.040.940.921.332.451.492.15HD 92788 b3.861.330.970.27377.7warm start1.47
22HD 2078236.02G2 V-0.051100.710.81.161.861.31.87HD 20782 b1.81.161.360.92585.86outer cold start5.6
23HD 17102890G0-0.490.9910.380.680.781.131.771.271.83HD 171028 b1.831.131.290.61538outer cold start6.45
24Ups And13.47F8 V0.091.274.082.211.422.045.782.293.3Ups And d3.952.042.510.2421274.6outer cold start1.92
25HD 21324040.75G4 IV0.231.224.741.831.291.864.782.083HD 213240 b4.51.862.030.45951inner cold start3.21
26HD 15535842.7G0-0.680.8716.860.370.580.830.960.931.35HD 155358 c0.5040.831.2240.176530.3outer cold start2.55
27HD 18801552.6G5IV0.291.097.241.070.991.422.81.592.3HD 188015 b1.261.421.190.15456.46warm start3.57
28HD 18326353G2IV0.31.175.551.51.171.683.921.892.72HD 183263 b3.691.681.520.38634.23warm start3.54
29HD 6521634.3G5 V-0.120.9213.670.480.660.951.251.071.54HD 65216 b1.210.951.370.41613.1outer cold start2.52
30HD 12561252.82G3V0.241.16.991.121.011.452.921.632.35HD 125612 b3.21.451.20.39502warm start3.27
31HD 13611852.3F9 V-0.0651.244.461.971.341.935.162.173.12HD 136118 b11.91.932.30.371209outer cold start2.37
3216 Cyg B21.41G2.5 V0.081.019.630.740.821.191.951.331.9216 Cyg B b1.681.191.680.689799.5outer cold start2.07
33HD 19022866.11G5IV-0.241.33.742.471.52.166.462.423.49HD 190228 b4.992.162.310.431127inner cold start2.6
34HD 21027721.29G00.191.097.241.070.991.422.81.592.3HD 210277 b1.231.421.10.472442.1warm start2.38
35HD 7057345.7G1-1.5V-0.181100.710.81.161.861.31.87HD 70573 b6.11.161.760.4851.8outer cold start0.98
36Gamma Cephei11.8K2 V01.42.833.511.792.579.192.894.16Gamma Cephei b1.62.572.0440.115902.9warm start1.09
37HD 19688533F8V0.291.333.432.751.582.287.22.563.69HD 196885 b2.962.282.630.4621349outer cold start2.05
38HD 420377.5G50.221.068.040.940.921.332.451.492.15HD 4203 b1.651.331.090.46400.944warm start3.62
39HD 13240671G0V0.181.097.241.070.991.422.81.592.3HD 132406 b5.611.421.980.34974outer cold start1.76
40HD 1150653.82G0V0.311.195.211.621.211.754.251.962.83HD 11506 b4.851.752.350.221280outer cold start1.6
41HD 1064717.3F8V-0.031.077.760.980.941.362.561.532.2HD 10647 b0.911.362.10.181040outer cold start0.56
42HD 14241534.2G1 V0.211.097.241.070.991.422.81.592.3HD 142415 b1.621.421.050.5386.3warm start1.57
43HD 2359652F80.321.274.082.211.422.045.782.293.3HD 23596 b7.192.042.720.3141558outer cold start1.31
44HD 19064754.2G50.241.16.991.121.011.452.921.632.35HD 190647 b1.91.452.070.181038.1outer cold start1.43
45HD 18708544.98G0 V0.051.224.741.831.291.864.782.083HD 187085 b0.751.862.050.47986inner cold start3.17
46HD 1617559.8G00.231.353.252.951.642.367.732.653.82HD 16175 b4.52.362.070.48856warm start1.89
47HD 19605046.9G3 V01.175.551.51.171.683.921.892.72HD 196050 b31.682.50.281289outer cold start0.74
48HD 3852942.43G4 IV0.3131.392.913.391.762.538.882.844.09HD 38529 c12.72.533.680.362174.3outer cold start0.5
49HD 16983036.32F8 V0.211.42.833.511.792.579.192.894.16HD 169830 c4.042.573.60.332102outer cold start0.67
50HD 21643533.3G0 V0.151.254.332.051.361.975.362.213.18HD 216435 b1.491.972.70.341442.919outer cold start1.17
51HD 15986852.7G5V01.097.241.070.991.422.81.592.3HD 159868 b1.71.4220.69986outer cold start1.63
52HD 17046964.97G5IV0.31.146.121.321.11.583.461.772.56HD 170469 b0.671.582.240.111145outer cold start1.31
53HD 4535049G5 IV0.291.029.280.780.841.212.041.361.96HD 45350 b1.791.211.920.778890.76outer cold start0.32
54HD 15485768.5G5V-0.231.175.551.51.171.683.921.892.72HD 154857 b1.81.681.20.47409warm start0.66
55HD 2312789.1G2V0.341.136.321.271.071.553.321.742.5HD 23127 b1.51.552.40.441214outer cold start0.42
Sorted by rank(ASC)

Habitable Zone zones
Note: Stars get brighter and hotter as they get older.
As a result, the Habitable Zone migrates outward.
ZAMS = Zero Age Main Sequqence. MSE = Main Sequence End.
MinimumMaximumNoteworthy

Simple Ranking Criteria
  1. Star Distannce: closest = best
  2. Main Sequence Duration: longest = best
  3. Planet Mass: largest = best (for all gas giants; more promising hosts for large, rocky moons.)
  4. Offset of actual orbit from Orbit-of-Greatest-Opportunity: smallest = best
  5. Orbital eccentricity: smallest = best
  6. Planet's Residency in Habitable Zone: longest = best
Untitled Document
20 warm start planets5 inner cold start planets31 outer cold start planets

Noteworthy Papers
  1. Jones B., Sleep P. & Underwood D., 2006
    Habitability of known exoplanetary systems based on measured stellar properties
    ApJ. , - , - (preprint).
Untitled Document

Visualization of Orbital Positions
0Earth

1Gl 581 c

2HD 93083 b

3HD 69830 d

4HD 20367 b

5HD 114783 b

6HIP 75458 b

7HD 160691 b

8HD 108874 b

9HD 99109 b

10HD 23079 b

11HD 141937 b

12HD 150706 b

13HD 155358 b

14HD 222582 b

15HD 73526 c

16HD 100777 b

17HD 10697 b

18HD 128311 b

19HD 147513 b

20HD 4113 b

21HD 92788 b

22HD 20782 b

23HD 171028 b

24Ups And d

25HD 213240 b

26HD 155358 c

27HD 188015 b

28HD 183263 b

29HD 65216 b

30HD 125612 b

31HD 136118 b

3216 Cyg B b

33HD 190228 b

34HD 210277 b

35HD 70573 b

36Gamma Cephei b

37HD 196885 b

38HD 4203 b

39HD 132406 b

40HD 11506 b

41HD 10647 b

42HD 142415 b

43HD 23596 b

44HD 190647 b

45HD 187085 b

46HD 16175 b

47HD 196050 b

48HD 38529 c

49HD 169830 c

50HD 216435 b

51HD 159868 b

52HD 170469 b

53HD 45350 b

54HD 154857 b

55HD 23127 b


planetarybiology.com


08:47 AM, CDT, Jul 04, 2008