Zeta Tucanae
11 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Terrestrial Sub-Jovian Ice Jovian Jovian Sub-Jovian Jovian Rock Rock See
Key
Stellar charactersistics
Stellar mass 0.98 solar masses
Stellar luminosity 1.30
Age 4.345 billion years
(3.193 billion left on main sequence)
Habitable ecosphere radius 1.140 AU

Planetary Overview
#TypeDist.MassRadius
1 Rock Rock 0.344 AU 0.194 EM 0.583 ER
2 Rock Rock 0.721 AU 0.472 EM 0.782 ER
3 Terrestrial Terrestrial 1.071 AU 1.121 EM 1.038 ER
4 Sub-Jovian Sub-Jovian 1.633 AU 5.134 EM 2.758 ER
5 Ice Ice 2.060 AU 1.234 EM 1.071 ER
6 Jovian Jovian 4.538 AU 513.571 EM 11.507 ER
7 Jovian Jovian 10.609 AU 62.877 EM 6.694 ER
8 Sub-Jovian Sub-Jovian 17.380 AU 6.832 EM 3.651 ER
9 Jovian Jovian 26.686 AU 58.934 EM 7.093 ER
10 Rock Rock 40.295 AU 0.272 EM 0.871 ER
11 Rock Rock 49.528 AU 0.032 EM 0.428 ER

Planet #1 Statistics
Planet typeRockRock
Resonant Spin Locked
Low-G, Hot, Airless, 1-Face
Distance from primary star5.1E+07 KM0.344 AU
Mass1.2E+24Kg0.194 Earth masses
Surface gravity558.6 cm/sec20.57 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature215.4° Celcius
419.7° Fahrenheit		+201.4° C Earth temperature
+362.5° F Earth temperature
Normal temperature range
NightDay
-175.1° C
-283.3° F		 - 423.4° C
794.0° F
MinMax
-188.8° C
-307.8° F		 - 427.4° C
801.3° F
Equatorial radius3720.5 Km0.58 Earth radii
Density5.37 grams/cc0.97 Earth densities
Eccentricity of orbit0.199
Escape Velocity 6.4 Km/sec
Molecular weight retained208.1 and above
Axial tilt24°
Planetary albedo 0.07
Exospheric Temperature13973.59° K+12700.59° C Earth temperature
Length of year74.49 Earth days1.50 Local days
Length of day1193.47 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 typeRockRock
Low-G, Hot, Airless
Distance from primary star1.1E+08 KM0.721 AU
Mass2.8E+24Kg0.472 Earth masses
Surface gravity756.0 cm/sec20.77 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature 64.3° Celcius
147.8° Fahrenheit		+50.3° C Earth temperature
+90.6° F Earth temperature
Normal temperature range
NightDay
0.3° C
32.6° F		 - 126.5° C
259.7° F
MinMax
-34.3° C
-29.8° F		 - 159.7° C
319.4° F
Equatorial radius4987.6 Km0.78 Earth radii
Density5.42 grams/cc0.98 Earth densities
Eccentricity of orbit0.189
Escape Velocity 8.7 Km/sec
Molecular weight retained26.2 and aboveN2, CO, NO, O2, H2S, Ar, CO2, N2O...
Axial tilt24°
Planetary albedo 0.07
Exospheric Temperature3182.51° K+1909.51° C Earth temperature
Length of year225.94 Earth days115.79 Local days
Length of day46.83 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 #3 Statistics
Planet typeTerrestrialTerrestrial
Warm (N2, O2 - breathable)
Distance from primary star1.6E+08 KM1.071 AU
Mass6.7E+24Kg1.121 Earth masses
Surface gravity1020.1 cm/sec21.04 Earth gees
Surface pressure 1299 millibars1.282 Earth atmospheres
Surface temperature 17.8° Celcius
64.0° Fahrenheit		+3.8° C Earth temperature
+6.8° F Earth temperature
Normal temperature range
NightDay
13.6° C
56.5° F		 - 21.6° C
71.0° F
MinMax
-8.0° C
17.7° F		 - 42.1° C
107.7° F
Equatorial radius6620.2 Km1 Earth radii
Density5.51 grams/cc1 Earth densities
Eccentricity of orbit0.084
Escape Velocity11.6 Km/sec
Molecular weight retained 6.7 and aboveN, O, CH4, NH3, H2O, Ne, N2, CO...
Nitrogen 79.5%  1033 mb (ipp: 983) 
Oxygen 19.6%  255 mb (ipp: 243) 
Argon  0.8%  11 mb (ipp: 10) 
Axial tilt18°
Planetary albedo 0.37
Exospheric Temperature1443.75° K+170.75° C Earth temperature
Length of year408.74 Earth days635.03 Local days
1.12 Earth years
Length of day15.45 hours
Boiling point of water107.2° Celcius
225.0° Fahrenheit
Hydrosphere percentage75.4
Cloud cover percentage65.3
Ice cover percentage 2.6


Planet #4 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star2.4E+08 KM1.633 AU
Mass3.1E+25Kg5.134 Earth masses
3.639 Earth masses dust
1.495 Earth masses gas
Equatorial radius17590.8 Km2.8 Earth radii
Density1.35 grams/cc0.24 Earth densities
Eccentricity of orbit0.016
Escape Velocity15.3 Km/sec
Molecular weight retained 1.6 and aboveH2, He, N, O, CH4, NH3, H2O, Ne...
Axial tilt16°
Planetary albedo 0.54
Exospheric Temperature620.62° K-652.38° C Earth temperature
Length of year769.91 Earth days1162.50 Local days
2.11 Earth years
Length of day15.89 hours


Planet #5 Statistics
Planet typeIceIce
Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star3.1E+08 KM2.060 AU
Mass7.4E+24Kg1.234 Earth masses
Surface gravity1055.0 cm/sec21.08 Earth gees
Surface pressure 1574 millibars1.553 Earth atmospheres
Surface temperature-96.1° Celcius
-141.0° Fahrenheit		-110.1° C Earth temperature
-198.2° F Earth temperature
Normal temperature range
NightDay
-98.3° C
-145.0° F		 - -94.0° C
-137.3° F
MinMax
-114.5° C
-174.2° F		 - -79.0° C
-110.2° F
Equatorial radius6829.7 Km1.1 Earth radii
Density5.53 grams/cc1 Earth densities
Eccentricity of orbit0.040
Escape Velocity12.0 Km/sec
Molecular weight retained 1.7 and aboveH2, He, N, O, CH4, NH3, H2O, Ne...
Axial tilt29°
Planetary albedo 0.70
Exospheric Temperature390.05° K-882.95° C Earth temperature
Length of year1090.74 Earth days1773.25 Local days
2.99 Earth years
Length of day14.76 hours
Boiling point of water112.8° Celcius
235.0° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.3
Ice cover percentage100.0


Planet #6 Statistics
Planet typeJovianJovian
Distance from primary star6.8E+08 KM4.538 AU
Mass3.1E+27Kg513.571 Earth masses
34.917 Earth masses dust
478.654 Earth masses gas
Equatorial radius73392.3 Km12 Earth radii
Density1.85 grams/cc0.34 Earth densities
Eccentricity of orbit0.025
Escape Velocity74.7 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt40°
Planetary albedo 0.46
Exospheric Temperature 80.38° K-1192.62° C Earth temperature
Length of year3563.46 Earth days12902.79 Local days
9.76 Earth years
Length of day6.63 hours


Planet #7 Statistics
Planet typeJovianJovian
Distance from primary star1.6E+09 KM10.609 AU
Mass3.8E+26Kg62.877 Earth masses
8.005 Earth masses dust
54.872 Earth masses gas
Equatorial radius42693.0 Km6.7 Earth radii
Density1.15 grams/cc0.21 Earth densities
Eccentricity of orbit0.237
Escape Velocity34.3 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt34°
Planetary albedo 0.46
Exospheric Temperature 14.70° K-1258.30° C Earth temperature
Length of year12749.01 Earth days27766.78 Local days
34.90 Earth years
Length of day11.02 hours


Planet #8 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star2.6E+09 KM17.380 AU
Mass4.1E+25Kg6.832 Earth masses
1.893 Earth masses dust
4.938 Earth masses gas
Equatorial radius23284.5 Km3.7 Earth radii
Density0.77 grams/cc0.14 Earth densities
Eccentricity of orbit0.126
Escape Velocity15.3 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt47°
Planetary albedo 0.46
Exospheric Temperature 5.48° K-1267.52° C Earth temperature
Length of year26734.16 Earth days35190.63 Local days
73.19 Earth years
Length of day18.23 hours


Planet #9 Statistics
Planet typeJovianJovian
Distance from primary star4E+09 KM26.686 AU
Mass3.5E+26Kg58.934 Earth masses
5.594 Earth masses dust
53.340 Earth masses gas
Equatorial radius45241.5 Km7.1 Earth radii
Density0.91 grams/cc0.16 Earth densities
Eccentricity of orbit0.138
Escape Velocity32.2 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt48°
Planetary albedo 0.54
Exospheric Temperature 2.32° K-1270.68° C Earth temperature
Length of year50858.18 Earth days101197.30 Local days
139.24 Earth years
Length of day12.06 hours


Planet #10 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star6E+09 KM40.295 AU
Mass1.6E+24Kg0.272 Earth masses
Surface gravity351.2 cm/sec20.36 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-228.8° Celcius
-379.9° Fahrenheit		-242.8° C Earth temperature
-437.1° F Earth temperature
Normal temperature range
NightDay
-233.8° C
-388.8° F		 - -223.8° C
-370.9° F
MinMax
-249.8° C
-417.6° F		 - -208.0° C
-342.5° F
Equatorial radius5556.8 Km0.87 Earth radii
Density2.26 grams/cc0.41 Earth densities
Eccentricity of orbit0.121
Escape Velocity 6.2 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt44°
Planetary albedo 0.15
Exospheric Temperature 1.02° K-1271.98° C Earth temperature
Length of year94377.01 Earth days88567.17 Local days
258.39 Earth years
Length of day25.57 hours
Boiling point of water-48.1° Celcius
-54.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.1


Planet #11 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star7.4E+09 KM49.528 AU
Mass1.9E+23Kg0.032 Earth masses
Surface gravity169.6 cm/sec20.17 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-233.3° Celcius
-387.9° Fahrenheit		-247.3° C Earth temperature
-445.1° F Earth temperature
+0.7° C greenhouse effect
Normal temperature range
NightDay
-239.3° C
-398.8° F		 - -227.1° C
-376.8° F
MinMax
-252.3° C
-422.2° F		 - -214.1° C
-353.3° F
Equatorial radius2729.3 Km0.43 Earth radii
Density2.22 grams/cc0.4 Earth densities
Eccentricity of orbit0.060
Escape Velocity 3.0 Km/sec
Molecular weight retained 0.1 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt54°
Planetary albedo 0.15
Exospheric Temperature 0.67° K-1272.33° C Earth temperature
Length of year128607.07 Earth days83878.32 Local days
352.10 Earth years
Length of day36.80 hours
Boiling point of water-84.3° Celcius
-119.7° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.0


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