47 Ursae Majoris
12 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Rock Venusian Ice Jovian Jovian Jovian Sub-Jovian Ice Rock See
Key
Stellar charactersistics
Stellar mass 1.03 solar masses
Stellar luminosity 1.70
Age 3.927 billion years
(2.132 billion left on main sequence)
Habitable ecosphere radius 1.304 AU

Planetary Overview
#TypeDist.MassRadius
1 Rock Rock 0.362 AU 0.017 EM 0.260 ER
2 Rock Rock 0.429 AU 0.264 EM 0.646 ER
3 Rock Rock 0.649 AU 0.193 EM 0.582 ER
4 Rock Rock 0.997 AU 0.069 EM 0.414 ER
5 Venusian Venusian 1.041 AU 1.998 EM 1.251 ER
6 Ice Ice 2.213 AU 1.306 EM 1.091 ER
7 Jovian Jovian 3.497 AU 187.607 EM 8.301 ER
8 Jovian Jovian 9.398 AU 27.783 EM 5.164 ER
9 Jovian Jovian 14.340 AU 653.051 EM 13.434 ER
10 Sub-Jovian Sub-Jovian 22.222 AU 3.741 EM 3.091 ER
11 Ice Ice 43.781 AU 0.763 EM 1.220 ER
12 Rock Rock 48.345 AU 0.004 EM 0.214 ER

Planet #1 Statistics
Planet typeRockRock
Tidally Locked 1 Face
Low-G, Hot, Airless, 1-Face
Distance from primary star5.4E+07 KM0.362 AU
Mass1E+23Kg0.017 Earth masses
Surface gravity246.6 cm/sec20.25 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature236.2° Celcius
457.1° Fahrenheit		+222.2° C Earth temperature
+399.9° F Earth temperature
Normal temperature range
MinMax
-196.0° C
-320.8° F		 - 453.5° C
848.3° F
Equatorial radius1658.0 Km0.26 Earth radii
Density5.32 grams/cc0.96 Earth densities
Eccentricity of orbit0.008
Escape Velocity 2.9 Km/sec
Molecular weight retained1246.1 and above
Axial tilt13°
Planetary albedo 0.07
Exospheric Temperature16507.65° K+15234.65° C Earth temperature
Length of year78.41 Earth days1.00 Local days
Length of day1881.85 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
Tidally Locked 1 Face
Low-G, Hot, Airless, 1-Face
Distance from primary star6.4E+07 KM0.429 AU
Mass1.6E+24Kg0.264 Earth masses
Surface gravity620.3 cm/sec20.63 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature195.0° Celcius
382.9° Fahrenheit		+181.0° C Earth temperature
+325.7° F Earth temperature
Normal temperature range
MinMax
-206.8° C
-340.3° F		 - 403.5° C
758.3° F
Equatorial radius4120.3 Km0.65 Earth radii
Density5.39 grams/cc0.98 Earth densities
Eccentricity of orbit0.045
Escape Velocity 7.1 Km/sec
Molecular weight retained142.2 and above
Axial tilt23°
Planetary albedo 0.07
Exospheric Temperature11777.84° K+10504.84° C Earth temperature
Length of year101.00 Earth days1.00 Local days
Length of day2424.09 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 typeRockRock
Resonant Spin Locked
Low-G, Hot, Airless, 1-Face
Distance from primary star9.7E+07 KM0.649 AU
Mass1.2E+24Kg0.193 Earth masses
Surface gravity557.3 cm/sec20.57 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature107.2° Celcius
224.9° Fahrenheit		+93.2° C Earth temperature
+167.7° F Earth temperature
Normal temperature range
MinMax
-222.4° C
-368.2° F		 - 295.0° C
563.1° F
Equatorial radius3712.0 Km0.58 Earth radii
Density5.37 grams/cc0.97 Earth densities
Eccentricity of orbit0.231
Escape Velocity 6.4 Km/sec
Molecular weight retained76.6 and aboveSO3, Kr, Xe
Axial tilt26°
Planetary albedo 0.07
Exospheric Temperature5131.15° K+3858.15° C Earth temperature
Length of year188.35 Earth days1.60 Local days
Length of day2824.40 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 #4 Statistics
Planet typeRockRock
Low-G, Hot, Airless
Distance from primary star1.5E+08 KM0.997 AU
Mass4.1E+23Kg0.069 Earth masses
Surface gravity394.1 cm/sec20.40 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature 33.8° Celcius
92.8° Fahrenheit		+19.8° C Earth temperature
+35.6° F Earth temperature
Normal temperature range
NightDay
-20.9° C
-5.7° F		 - 87.4° C
189.3° F
MinMax
-50.1° C
-58.2° F		 - 116.0° C
240.8° F
Equatorial radius2640.1 Km0.41 Earth radii
Density5.34 grams/cc0.97 Earth densities
Eccentricity of orbit0.030
Escape Velocity 4.6 Km/sec
Molecular weight retained64.6 and aboveSO3, Kr, Xe
Axial tilt19°
Planetary albedo 0.07
Exospheric Temperature2176.74° K+903.74° C Earth temperature
Length of year358.33 Earth days198.30 Local days
Length of day43.37 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 #5 Statistics
Planet typeVenusianVenusian
High-G, Hot, Arid, Cloudy, Unbreathably thick atmosphere
Distance from primary star1.6E+08 KM1.041 AU
Mass1.2E+25Kg1.998 Earth masses
Surface gravity1251.4 cm/sec21.28 Earth gees
Surface pressure549500 millibars542.314 Earth atmospheres
Surface temperature1487.0° Celcius
2708.6° Fahrenheit		+1473.0° C Earth temperature
+2651.4° F Earth temperature
Normal temperature range
MinMax
1471.5° C
2680.6° F		 - 1478.5° C
2693.3° F
Equatorial radius7979.1 Km1.3 Earth radii
Density5.61 grams/cc1 Earth densities
Eccentricity of orbit0.071
Escape Velocity14.1 Km/sec
Molecular weight retained 6.2 and aboveN, O, CH4, NH3, H2O, Ne, N2, CO...
Axial tilt22°
Planetary albedo 0.52
Exospheric Temperature1998.31° K+725.31° C Earth temperature
Length of year382.07 Earth days662.56 Local days
1.05 Earth years
Length of day13.84 hours
Boiling point of water425.3° Celcius
797.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage100.0
Ice cover percentage 0.0


Planet #6 Statistics
Planet typeIceIce
Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star3.3E+08 KM2.213 AU
Mass7.8E+24Kg1.306 Earth masses
Surface gravity1076.3 cm/sec21.10 Earth gees
Surface pressure 1677 millibars1.656 Earth atmospheres
Surface temperature-89.7° Celcius
-129.5° Fahrenheit		-103.7° C Earth temperature
-186.7° F Earth temperature
Normal temperature range
NightDay
-91.9° C
-133.5° F		 - -87.7° C
-125.8° F
MinMax
-109.8° C
-165.6° F		 - -71.0° C
-95.9° F
Equatorial radius6956.5 Km1.1 Earth radii
Density5.54 grams/cc1 Earth densities
Eccentricity of orbit0.152
Escape Velocity12.2 Km/sec
Molecular weight retained 1.9 and aboveH2, He, N, O, CH4, NH3, H2O, Ne...
Axial tilt27°
Planetary albedo 0.70
Exospheric Temperature442.07° K-830.93° C Earth temperature
Length of year1184.46 Earth days1945.29 Local days
3.24 Earth years
Length of day14.61 hours
Boiling point of water114.7° Celcius
238.4° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.5
Ice cover percentage100.0


Planet #7 Statistics
Planet typeJovianJovian
Distance from primary star5.2E+08 KM3.497 AU
Mass1.1E+27Kg187.607 Earth masses
19.719 Earth masses dust
167.888 Earth masses gas
Equatorial radius52943.2 Km8.3 Earth radii
Density1.80 grams/cc0.33 Earth densities
Eccentricity of orbit0.008
Escape Velocity53.2 Km/sec
Molecular weight retained 0.1 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt21°
Planetary albedo 0.53
Exospheric Temperature176.94° K-1096.06° C Earth temperature
Length of year2353.12 Earth days7138.69 Local days
6.44 Earth years
Length of day7.91 hours


Planet #8 Statistics
Planet typeJovianJovian
Distance from primary star1.4E+09 KM9.398 AU
Mass1.7E+26Kg27.783 Earth masses
5.225 Earth masses dust
22.557 Earth masses gas
Equatorial radius32934.8 Km5.2 Earth radii
Density1.11 grams/cc0.2 Earth densities
Eccentricity of orbit0.323
Escape Velocity25.9 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt38°
Planetary albedo 0.46
Exospheric Temperature 24.50° K-1248.50° C Earth temperature
Length of year10368.24 Earth days19457.96 Local days
28.39 Earth years
Length of day12.79 hours


Planet #9 Statistics
Planet typeJovianJovian
Distance from primary star2.1E+09 KM14.340 AU
Mass3.9E+27Kg653.051 Earth masses
30.492 Earth masses dust
622.559 Earth masses gas
Equatorial radius85678.9 Km13 Earth radii
Density1.48 grams/cc0.27 Earth densities
Eccentricity of orbit0.109
Escape Velocity78.0 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt26°
Planetary albedo 0.50
Exospheric Temperature 10.52° K-1262.48° C Earth temperature
Length of year19524.59 Earth days68287.74 Local days
53.45 Earth years
Length of day6.86 hours


Planet #10 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star3.3E+09 KM22.222 AU
Mass2.2E+25Kg3.741 Earth masses
1.242 Earth masses dust
2.499 Earth masses gas
Equatorial radius19716.9 Km3.1 Earth radii
Density0.70 grams/cc0.13 Earth densities
Eccentricity of orbit0.000
Escape Velocity12.3 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt54°
Planetary albedo 0.45
Exospheric Temperature 4.38° K-1268.62° C Earth temperature
Length of year37699.62 Earth days43369.31 Local days
103.21 Earth years
Length of day20.86 hours


Planet #11 Statistics
Planet typeIceIce
Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star6.5E+09 KM43.781 AU
Mass4.6E+24Kg
0.763 Earth masses
0.446 Earth masses dust
0.318 Earth masses gas
Surface gravity502.6 cm/sec20.51 Earth gees
Surface pressure 143 millibars0.141 Earth atmospheres
Surface temperature-225.9° Celcius
-374.6° Fahrenheit		-239.9° C Earth temperature
-431.8° F Earth temperature
Normal temperature range
NightDay
-228.2° C
-378.8° F		 - -223.6° C
-370.5° F
MinMax
-244.6° C
-408.3° F		 - -208.5° C
-343.2° F
Equatorial radius7783.1 Km1.2 Earth radii
Density2.31 grams/cc0.42 Earth densities
Eccentricity of orbit0.057
Escape Velocity 8.8 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt35°
Planetary albedo 0.22
Exospheric Temperature 1.13° K-1271.87° C Earth temperature
Length of year104257.68 Earth days117049.24 Local days
285.44 Earth years
Length of day21.38 hours
Boiling point of water53.0° Celcius
127.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage100.0


Planet #12 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star7.2E+09 KM48.345 AU
Mass2.4E+22Kg0.004 Earth masses
Surface gravity84.4 cm/sec20.09 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-230.0° Celcius
-382.1° Fahrenheit		-244.0° C Earth temperature
-439.3° F Earth temperature
Normal temperature range
NightDay
-238.8° C
-397.8° F		 - -221.1° C
-366.0° F
MinMax
-252.8° C
-423.0° F		 - -206.4° C
-339.5° F
Equatorial radius1364.1 Km0.21 Earth radii
Density2.22 grams/cc0.4 Earth densities
Eccentricity of orbit0.001
Escape Velocity 1.5 Km/sec
Molecular weight retained 0.3 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt38°
Planetary albedo 0.15
Exospheric Temperature 0.93° K-1272.07° C Earth temperature
Length of year120976.68 Earth days55671.23 Local days
331.21 Earth years
Length of day52.15 hours
Boiling point of water-110.0° Celcius
-166.0° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage 0.0


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