While I'm honored by CNN's link to this page from their article about the new planet discovered around Epsilon Eridani, I feel I should point out that the system shown here is fictional. It was produced by a program of mine called StarGen.
-- Brons

Epsilon Eridani
11 Planets (size proportional to Sqrt(Radius))
Sun Rock Martian Martian Ice Ice Jovian Jovian Sub-Jovian Rock Sub-Jovian Rock See
Key
Stellar charactersistics
Stellar mass 0.85 solar masses
Stellar luminosity 0.34
Age 5.839 billion years
(19.161 billion left on main sequence)
Habitable ecosphere radius 0.583 AU

Planetary Overview
#TypeDist.MassRadius
1 Rock Rock 0.377 AU 0.064 EM 0.403 ER
2 Martian Martian 0.526 AU 0.444 EM 0.767 ER
3 Martian Martian 0.916 AU 0.076 EM 0.427 ER
4 Ice Ice 1.158 AU 2.365 EM 1.321 ER
5 Ice Ice 1.538 AU 0.525 EM 0.810 ER
6 Jovian Jovian 3.081 AU 76.938 EM 6.773 ER
7 Jovian Jovian 5.607 AU 226.769 EM 9.758 ER
8 Sub-Jovian Sub-Jovian 15.003 AU 2.876 EM 2.963 ER
9 Rock Rock 21.499 AU 0.155 EM 0.724 ER
10 Sub-Jovian Sub-Jovian 25.167 AU 15.402 EM 5.047 ER
11 Rock Rock 45.978 AU 0.198 EM 0.785 ER

Planet #1 Statistics
Planet typeRockRock
Tidally Locked 1 Face
Low-G, Hot, Airless, 1-Face
Distance from primary star5.6E+07 KM0.377 AU
Mass3.8E+23Kg0.064 Earth masses
Surface gravity384.0 cm/sec20.39 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature 60.5° Celcius
140.8° Fahrenheit		+46.5° C Earth temperature
+83.6° F Earth temperature
Normal temperature range
MinMax
-225.0° C
-372.9° F		 - 235.2° C
455.4° F
Equatorial radius2573.4 Km0.4 Earth radii
Density5.34 grams/cc0.97 Earth densities
Eccentricity of orbit0.052
Escape Velocity 4.4 Km/sec
Molecular weight retained96.0 and aboveXe
Axial tilt12°
Planetary albedo 0.07
Exospheric Temperature3038.80° K+1765.80° C Earth temperature
Length of year91.85 Earth days1.00 Local days
Length of day2204.47 hours
Boiling point of water-273.1° Celcius
-459.7° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.0


Planet #2 Statistics
Planet typeMartianMartian
Tidally Locked 1 Face
Low-G, Cold, Icy, Arid, Cloudy, Thin atmosphere (N2, Ar - unbreathable), 1-Face
Distance from primary star7.9E+07 KM0.526 AU
Mass2.7E+24Kg0.444 Earth masses
Surface gravity740.4 cm/sec20.75 Earth gees
Surface pressure 235 millibars0.232 Earth atmospheres
Surface temperature-19.2° Celcius
-2.6° Fahrenheit		-33.2° C Earth temperature
-59.8° F Earth temperature
Normal temperature range
NightDay
-193.7° C
-316.6° F		 - 58.3° C
136.9° F
MinMax
-208.5° C
-343.3° F		 - 80.1° C
176.2° F
Equatorial radius4889.1 Km0.77 Earth radii
Density5.42 grams/cc0.98 Earth densities
Eccentricity of orbit0.072
Escape Velocity 8.5 Km/sec
Molecular weight retained13.5 and aboveN, O, CH4, NH3, H2O, Ne, N2, CO...
Nitrogen 85.9%  202 mb (ipp: 148) 
Argon 14.1%  33 mb (ipp: 24) 
Axial tilt26°
Planetary albedo 0.53
Exospheric Temperature1564.94° K+291.94° C Earth temperature
Length of year151.09 Earth days1.00 Local days
Length of day3626.24 hours
Boiling point of water63.8° Celcius
146.8° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage97.3
Ice cover percentage31.2


Planet #3 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Unbreathably thin atmosphere
Distance from primary star1.4E+08 KM0.916 AU
Mass4.5E+23Kg0.076 Earth masses
Surface gravity406.8 cm/sec20.41 Earth gees
Surface pressure 7 millibars0.007 Earth atmospheres
Surface temperature-81.0° Celcius
-113.7° Fahrenheit		-95.0° C Earth temperature
-170.9° F Earth temperature
Normal temperature range
NightDay
-131.6° C
-204.9° F		 - -31.7° C
-25.1° F
MinMax
-154.3° C
-245.8° F		 - -8.7° C
16.4° F
Equatorial radius2724.3 Km0.43 Earth radii
Density5.34 grams/cc0.97 Earth densities
Eccentricity of orbit0.028
Escape Velocity 4.7 Km/sec
Molecular weight retained14.5 and aboveO, CH4, NH3, H2O, Ne, N2, CO, NO...
Axial tilt31°
Planetary albedo 0.44
Exospheric Temperature516.26° K-756.74° C Earth temperature
Length of year347.11 Earth days108.01 Local days
Length of day77.13 hours
Boiling point of water-0.5° Celcius
31.0° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.1
Ice cover percentage52.0


Planet #4 Statistics
Planet typeIceIce
High-G, Cold, Icy, Arid, Cloudless, Thick atmosphere
Distance from primary star1.7E+08 KM1.158 AU
Mass1.4E+25Kg2.365 Earth masses
Surface gravity1329.6 cm/sec21.36 Earth gees
Surface pressure 6667 millibars6.580 Earth atmospheres
Surface temperature-70.6° Celcius
-95.1° Fahrenheit		-84.6° C Earth temperature
-152.3° F Earth temperature
Normal temperature range
NightDay
-71.7° C
-97.1° F		 - -69.6° C
-93.2° F
MinMax
-82.0° C
-115.6° F		 - -59.8° C
-75.7° F
Equatorial radius8422.8 Km1.3 Earth radii
Density5.65 grams/cc1 Earth densities
Eccentricity of orbit0.098
Escape Velocity15.0 Km/sec
Molecular weight retained 1.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt21°
Planetary albedo 0.70
Exospheric Temperature322.76° K-950.24° C Earth temperature
Length of year493.69 Earth days892.67 Local days
1.35 Earth years
Length of day13.27 hours
Boiling point of water160.6° Celcius
321.1° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.3
Ice cover percentage99.4


Planet #5 Statistics
Planet typeIceIce
Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star2.3E+08 KM1.538 AU
Mass3.1E+24Kg0.525 Earth masses
Surface gravity784.3 cm/sec20.80 Earth gees
Surface pressure 328 millibars0.324 Earth atmospheres
Surface temperature-136.9° Celcius
-214.4° Fahrenheit		-150.9° C Earth temperature
-271.6° F Earth temperature
Normal temperature range
NightDay
-140.9° C
-221.7° F		 - -133.1° C
-207.5° F
MinMax
-161.5° C
-258.7° F		 - -114.2° C
-173.5° F
Equatorial radius5166.1 Km0.81 Earth radii
Density5.43 grams/cc0.98 Earth densities
Eccentricity of orbit0.031
Escape Velocity 9.0 Km/sec
Molecular weight retained 1.5 and aboveH2, He, N, O, CH4, NH3, H2O, Ne...
Axial tilt27°
Planetary albedo 0.70
Exospheric Temperature183.06° K-1089.94° C Earth temperature
Length of year755.38 Earth days1052.79 Local days
2.07 Earth years
Length of day17.22 hours
Boiling point of water71.5° Celcius
160.7° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage100.0


Planet #6 Statistics
Planet typeJovianJovian
Distance from primary star4.6E+08 KM3.081 AU
Mass4.6E+26Kg76.938 Earth masses
15.882 Earth masses dust
61.056 Earth masses gas
Equatorial radius43196.1 Km6.8 Earth radii
Density1.36 grams/cc0.25 Earth densities
Eccentricity of orbit0.066
Escape Velocity37.7 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt31°
Planetary albedo 0.50
Exospheric Temperature 45.59° K-1227.41° C Earth temperature
Length of year2142.46 Earth days5101.52 Local days
5.87 Earth years
Length of day10.08 hours


Planet #7 Statistics
Planet typeJovianJovian
Distance from primary star8.4E+08 KM5.607 AU
Mass1.4E+27Kg226.769 Earth masses
24.238 Earth masses dust
202.531 Earth masses gas
Equatorial radius62234.8 Km9.8 Earth radii
Density1.34 grams/cc0.24 Earth densities
Eccentricity of orbit0.103
Escape Velocity53.9 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt33°
Planetary albedo 0.50
Exospheric Temperature 13.77° K-1259.23° C Earth temperature
Length of year5258.14 Earth days14919.40 Local days
14.40 Earth years
Length of day8.46 hours


Planet #8 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star2.2E+09 KM15.003 AU
Mass1.7E+25Kg2.876 Earth masses
2.249 Earth masses dust
0.627 Earth masses gas
Equatorial radius18898.6 Km3 Earth radii
Density0.61 grams/cc0.11 Earth densities
Eccentricity of orbit0.075
Escape Velocity11.0 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt40°
Planetary albedo 0.54
Exospheric Temperature 1.92° K-1271.08° C Earth temperature
Length of year23022.95 Earth days24227.08 Local days
63.03 Earth years
Length of day22.81 hours


Planet #9 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star3.2E+09 KM21.499 AU
Mass9.3E+23Kg0.155 Earth masses
Surface gravity289.9 cm/sec20.30 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-229.8° Celcius
-381.7° Fahrenheit		-243.8° C Earth temperature
-438.9° F Earth temperature
+5.0° C greenhouse effect
Normal temperature range
NightDay
-235.1° C
-391.1° F		 - -224.5° C
-372.0° F
MinMax
-251.9° C
-421.4° F		 - -207.5° C
-341.4° F
Equatorial radius4619.4 Km0.72 Earth radii
Density2.25 grams/cc0.41 Earth densities
Eccentricity of orbit0.080
Escape Velocity 5.2 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt27°
Planetary albedo 0.15
Exospheric Temperature 0.94° K-1272.06° C Earth temperature
Length of year39493.61 Earth days33676.53 Local days
108.13 Earth years
Length of day28.15 hours
Boiling point of water-57.5° Celcius
-71.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.1


Planet #10 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star3.8E+09 KM25.167 AU
Mass9.2E+25Kg15.402 Earth masses
3.383 Earth masses dust
12.019 Earth masses gas
Equatorial radius32188.9 Km5 Earth radii
Density0.66 grams/cc0.12 Earth densities
Eccentricity of orbit0.059
Escape Velocity19.5 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt60°
Planetary albedo 0.52
Exospheric Temperature 0.68° K-1272.32° C Earth temperature
Length of year50018.98 Earth days71511.99 Local days
136.94 Earth years
Length of day16.79 hours


Planet #11 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star6.9E+09 KM45.978 AU
Mass1.2E+24Kg0.198 Earth masses
Surface gravity315.3 cm/sec20.32 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-243.5° Celcius
-406.3° Fahrenheit		-257.5° C Earth temperature
-463.5° F Earth temperature
Normal temperature range
NightDay
-246.8° C
-412.3° F		 - -240.0° C
-399.9° F
MinMax
-260.0° C
-436.1° F		 - -225.7° C
-374.2° F
Equatorial radius5009.4 Km0.79 Earth radii
Density2.25 grams/cc0.41 Earth densities
Eccentricity of orbit0.062
Escape Velocity 5.6 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt41°
Planetary albedo 0.15
Exospheric Temperature 0.20° K-1272.80° C Earth temperature
Length of year123511.69 Earth days109823.02 Local days
338.15 Earth years
Length of day26.99 hours
Boiling point of water-52.9° Celcius
-63.2° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.1


This page was created by StarGen.