70 Ophiuchi B
7 Planets (size proportional to Sqrt(Radius))
Sun Rock Martian Ice Ice Martian Martian Martian See
Key
Stellar charactersistics
Stellar mass 0.70 solar masses
Stellar luminosity 0.09
Age 5.441 billion years
(75.599 billion left on main sequence)
Habitable ecosphere radius 0.294 AU

Planetary Overview
#TypeDist.MassRadius
1 Rock Rock 0.309 AU 0.007 EM 0.194 ER
2 Martian Martian 0.383 AU 0.225 EM 0.613 ER
3 Ice Ice 0.809 AU 0.925 EM 0.975 ER
4 Ice Ice 0.971 AU 0.343 EM 0.704 ER
5 Martian Martian 1.293 AU 1.083 EM 1.366 ER
6 Martian Martian 1.469 AU 0.347 EM 0.943 ER
7 Martian Martian 2.272 AU 4.612 EM 2.151 ER

Planet #1 Statistics
Planet typeRockRock
Tidally Locked 1 Face
Low-G, Cold, Airless, 1-Face
Distance from primary star4.6E+07 KM0.309 AU
Mass4.2E+22Kg0.007 Earth masses
Surface gravity183.6 cm/sec20.19 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-11.2° Celcius
11.8° Fahrenheit
-25.2° C Earth temperature
-45.4° F Earth temperature
+9.9° C greenhouse effect
Normal temperature range
MinMax
-233.1° C
-387.6° F
- 142.1° C
287.7° F
Equatorial radius1236.1 Km0.19 Earth radii
Density5.32 grams/cc0.96 Earth densities
Eccentricity of orbit0.050
Escape Velocity 2.1 Km/sec
Molecular weight retained158.5 and above
Axial tilt23°
Planetary albedo 0.07
Exospheric Temperature1154.79° K-118.21° C Earth temperature
Length of year74.86 Earth days1.00 Local days
Length of day1796.61 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, Cloudless, Unbreathably thin atmosphere (Ne - unbreathable), 1-Face
Distance from primary star5.7E+07 KM0.383 AU
Mass1.3E+24Kg0.225 Earth masses
Surface gravity587.8 cm/sec20.60 Earth gees
Surface pressure 73 millibars0.072 Earth atmospheres
Surface temperature-81.2° Celcius
-114.1° Fahrenheit
-95.2° C Earth temperature
-171.3° F Earth temperature
Normal temperature range
NightDay
-225.7° C
-374.3° F
- 9.6° C
49.2° F
MinMax
-236.5° C
-393.7° F
- 26.1° C
79.1° F
Equatorial radius3910.2 Km0.61 Earth radii
Density5.38 grams/cc0.97 Earth densities
Eccentricity of orbit0.008
Escape Velocity 6.8 Km/sec
Molecular weight retained10.2 and aboveN, O, CH4, NH3, H2O, Ne, N2, CO...
Neon 100.0%  73 mb (ipp: 11) 
Axial tilt13°
Planetary albedo 0.65
Exospheric Temperature750.46° K-522.54° C Earth temperature
Length of year103.42 Earth days1.00 Local days
Length of day2482.19 hours
Boiling point of water39.5° Celcius
103.2° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.5
Ice cover percentage91.1


Planet #3 Statistics
Planet typeIceIce
Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star1.2E+08 KM0.809 AU
Mass5.5E+24Kg0.925 Earth masses
Surface gravity953.9 cm/sec20.97 Earth gees
Surface pressure 1236 millibars1.220 Earth atmospheres
Surface temperature-131.8° Celcius
-205.2° Fahrenheit
-145.8° C Earth temperature
-262.4° F Earth temperature
Normal temperature range
NightDay
-134.1° C
-209.4° F
- -129.6° C
-201.3° F
MinMax
-151.3° C
-240.3° F
- -113.8° C
-172.8° F
Equatorial radius6218.3 Km0.97 Earth radii
Density5.49 grams/cc0.99 Earth densities
Eccentricity of orbit0.068
Escape Velocity10.9 Km/sec
Molecular weight retained 1.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt24°
Planetary albedo 0.70
Exospheric Temperature168.05° K-1104.95° C Earth temperature
Length of year317.71 Earth days434.80 Local days
Length of day17.54 hours
Boiling point of water105.8° Celcius
222.4° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage100.0


Planet #4 Statistics
Planet typeIceIce
Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star1.5E+08 KM0.971 AU
Mass2E+24Kg0.343 Earth masses
Surface gravity677.8 cm/sec20.69 Earth gees
Surface pressure 170 millibars0.167 Earth atmospheres
Surface temperature-153.8° Celcius
-244.9° Fahrenheit
-167.8° C Earth temperature
-302.1° F Earth temperature
Normal temperature range
NightDay
-159.2° C
-254.5° F
- -148.7° C
-235.7° F
MinMax
-180.8° C
-293.4° F
- -128.9° C
-200.0° F
Equatorial radius4489.9 Km0.7 Earth radii
Density5.40 grams/cc0.98 Earth densities
Eccentricity of orbit0.073
Escape Velocity 7.8 Km/sec
Molecular weight retained 1.2 and aboveH2, He, N, O, CH4, NH3, H2O, Ne...
Axial tilt29°
Planetary albedo 0.70
Exospheric Temperature116.75° K-1156.25° C Earth temperature
Length of year417.53 Earth days496.52 Local days
1.14 Earth years
Length of day20.18 hours
Boiling point of water56.6° Celcius
133.9° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage100.0


Planet #5 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star1.9E+08 KM1.293 AU
Mass6.5E+24Kg1.083 Earth masses
Surface gravity569.1 cm/sec20.58 Earth gees
Surface pressure 908 millibars0.896 Earth atmospheres
Surface temperature-142.8° Celcius
-225.0° Fahrenheit
-156.8° C Earth temperature
-282.2° F Earth temperature
Normal temperature range
NightDay
-145.6° C
-230.1° F
- -140.2° C
-220.3° F
MinMax
-163.9° C
-263.1° F
- -123.4° C
-190.2° F
Equatorial radius8712.5 Km1.4 Earth radii
Density2.34 grams/cc0.42 Earth densities
Eccentricity of orbit0.087
Escape Velocity10.0 Km/sec
Molecular weight retained 0.4 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt27°
Planetary albedo 0.41
Exospheric Temperature 65.84° K-1207.16° C Earth temperature
Length of year641.57 Earth days762.92 Local days
1.76 Earth years
Length of day20.18 hours
Boiling point of water97.2° Celcius
207.0° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage47.2


Planet #6 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Unbreathably thin atmosphere
Distance from primary star2.2E+08 KM1.469 AU
Mass2.1E+24Kg0.347 Earth masses
Surface gravity381.7 cm/sec20.39 Earth gees
Surface pressure 93 millibars0.092 Earth atmospheres
Surface temperature-156.0° Celcius
-248.8° Fahrenheit
-170.0° C Earth temperature
-306.0° F Earth temperature
Normal temperature range
NightDay
-163.8° C
-262.8° F
- -148.5° C
-235.4° F
MinMax
-185.6° C
-302.1° F
- -128.3° C
-199.0° F
Equatorial radius6017.0 Km0.94 Earth radii
Density2.27 grams/cc0.41 Earth densities
Eccentricity of orbit0.072
Escape Velocity 6.8 Km/sec
Molecular weight retained 0.7 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt30°
Planetary albedo 0.32
Exospheric Temperature 51.02° K-1221.98° C Earth temperature
Length of year776.76 Earth days755.85 Local days
2.13 Earth years
Length of day24.66 hours
Boiling point of water44.2° Celcius
111.5° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage31.7


Planet #7 Statistics
Planet typeMartianMartian
Cold, Icy, Arid, Cloudless, Unbreathably thick atmosphere
Distance from primary star3.4E+08 KM2.272 AU
Mass2.8E+25Kg4.612 Earth masses
Surface gravity977.6 cm/sec21.00 Earth gees
Surface pressure16461 millibars16.246 Earth atmospheres
Surface temperature-140.2° Celcius
-220.3° Fahrenheit
-154.2° C Earth temperature
-277.5° F Earth temperature
Normal temperature range
MinMax
-146.9° C
-232.3° F
- -133.8° C
-208.9° F
Equatorial radius13715.9 Km2.2 Earth radii
Density2.55 grams/cc0.46 Earth densities
Eccentricity of orbit0.083
Escape Velocity16.4 Km/sec
Molecular weight retained 0.1 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt32°
Planetary albedo 0.60
Exospheric Temperature 21.33° K-1251.67° C Earth temperature
Length of year1494.26 Earth days2339.47 Local days
4.09 Earth years
Length of day15.33 hours
Boiling point of water197.1° Celcius
386.8° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage81.2


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