HR 4523
13 Planets (size proportional to Sqrt(Radius))
Sun Rock Rock Rock Rock Rock Martian Sub-Jovian Rock Martian Jovian Martian Jovian Sub-Jovian See
Key
Stellar charactersistics
Stellar mass 0.80 solar masses
Stellar luminosity 0.82
Age 5.623 billion years
(4.133 billion left on main sequence)
Habitable ecosphere radius 0.906 AU

Planetary Overview
#TypeDist.MassRadius
1 Rock Rock 0.292 AU 0.026 EM 0.298 ER
2 Rock Rock 0.370 AU 0.002 EM 0.120 ER
3 Rock Rock 0.450 AU 0.077 EM 0.430 ER
4 Rock Rock 0.537 AU 0.307 EM 0.679 ER
5 Rock Rock 0.789 AU 0.034 EM 0.326 ER
6 Martian Martian 1.027 AU 0.169 EM 0.558 ER
7 Sub-Jovian Sub-Jovian 1.564 AU 15.293 EM 3.852 ER
8 Rock Rock 3.047 AU 0.003 EM 0.141 ER
9 Martian Martian 4.056 AU 1.500 EM 1.516 ER
10 Jovian Jovian 5.286 AU 332.252 EM 10.463 ER
11 Martian Martian 6.614 AU 0.711 EM 1.193 ER
12 Jovian Jovian 12.734 AU 268.886 EM 10.585 ER
13 Sub-Jovian Sub-Jovian 24.921 AU 13.398 EM 4.667 ER

Planet #1 Statistics
Planet typeRockRock
Tidally Locked 1 Face
Low-G, Hot, Airless, 1-Face
Distance from primary star4.4E+07 KM0.292 AU
Mass1.5E+23Kg0.026 Earth masses
Surface gravity282.9 cm/sec20.29 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature199.2° Celcius
390.5° Fahrenheit		+185.2° C Earth temperature
+333.3° F Earth temperature
Normal temperature range
NightDay
-186.7° C
-304.1° F		 - 404.5° C
760.1° F
MinMax
-197.2° C
-322.9° F		 - 407.8° C
766.0° F
Equatorial radius1901.0 Km0.3 Earth radii
Density5.33 grams/cc0.96 Earth densities
Eccentricity of orbit0.015
Escape Velocity 3.3 Km/sec
Molecular weight retained707.6 and above
Axial tilt15°
Planetary albedo 0.07
Exospheric Temperature12209.18° K+10936.18° C Earth temperature
Length of year64.57 Earth days1.00 Local days
Length of day1549.64 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 star5.5E+07 KM0.370 AU
Mass9.9E+21Kg0.002 Earth masses
Surface gravity113.4 cm/sec20.12 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature146.9° Celcius
296.4° Fahrenheit		+132.9° C Earth temperature
+239.2° F Earth temperature
Normal temperature range
MinMax
-211.8° C
-349.2° F		 - 343.8° C
650.8° F
Equatorial radius763.9 Km0.12 Earth radii
Density5.31 grams/cc0.96 Earth densities
Eccentricity of orbit0.008
Escape Velocity 1.3 Km/sec
Molecular weight retained2747.2 and above
Axial tilt24°
Planetary albedo 0.07
Exospheric Temperature7635.83° K+6362.83° C Earth temperature
Length of year91.81 Earth days1.00 Local days
Length of day2203.45 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 star6.7E+07 KM0.450 AU
Mass4.6E+23Kg0.077 Earth masses
Surface gravity410.0 cm/sec20.42 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature107.4° Celcius
225.3° Fahrenheit		+93.4° C Earth temperature
+168.1° F Earth temperature
Normal temperature range
MinMax
-218.4° C
-361.1° F		 - 294.7° C
562.5° F
Equatorial radius2745.4 Km0.43 Earth radii
Density5.34 grams/cc0.97 Earth densities
Eccentricity of orbit0.155
Escape Velocity 4.7 Km/sec
Molecular weight retained142.5 and above
Axial tilt27°
Planetary albedo 0.07
Exospheric Temperature5143.99° K+3870.99° C Earth temperature
Length of year123.47 Earth days1.37 Local days
Length of day2165.78 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
Tidally Locked 1 Face
Low-G, Hot, Airless, 1-Face
Distance from primary star8E+07 KM0.537 AU
Mass1.8E+24Kg0.307 Earth masses
Surface gravity652.6 cm/sec20.67 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature 75.6° Celcius
168.0° Fahrenheit		+61.6° C Earth temperature
+110.8° F Earth temperature
Normal temperature range
MinMax
-227.7° C
-377.8° F		 - 255.0° C
491.0° F
Equatorial radius4328.7 Km0.68 Earth radii
Density5.39 grams/cc0.98 Earth densities
Eccentricity of orbit0.008
Escape Velocity 7.5 Km/sec
Molecular weight retained40.1 and aboveCO2, N2O, NO2, O3, SO2, SO3, Kr, Xe
Axial tilt13°
Planetary albedo 0.07
Exospheric Temperature3626.58° K+2353.58° C Earth temperature
Length of year160.48 Earth days1.00 Local days
Length of day3851.43 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 typeRockRock
Resonant Spin Locked
Low-G, Airless, 1-Face
Distance from primary star1.2E+08 KM0.789 AU
Mass2E+23Kg0.034 Earth masses
Surface gravity310.0 cm/sec20.32 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature 14.3° Celcius
57.8° Fahrenheit		+0.3° C Earth temperature
+0.6° F Earth temperature
Normal temperature range
MinMax
-234.8° C
-390.6° F		 - 176.9° C
350.5° F
Equatorial radius2081.3 Km0.33 Earth radii
Density5.33 grams/cc0.97 Earth densities
Eccentricity of orbit0.127
Escape Velocity 3.6 Km/sec
Molecular weight retained80.9 and aboveKr, Xe
Axial tilt26°
Planetary albedo 0.07
Exospheric Temperature1674.90° K+401.90° C Earth temperature
Length of year286.45 Earth days1.29 Local days
Length of day5328.87 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 #6 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Unbreathably thin atmosphere
Distance from primary star1.5E+08 KM1.027 AU
Mass1E+24Kg0.169 Earth masses
Surface gravity533.7 cm/sec20.54 Earth gees
Surface pressure 36 millibars0.036 Earth atmospheres
Surface temperature-56.0° Celcius
-68.9° Fahrenheit		-70.0° C Earth temperature
-126.1° F Earth temperature
Normal temperature range
NightDay
-74.3° C
-101.7° F		 - -38.3° C
-36.9° F
MinMax
-101.4° C
-150.5° F		 - -12.1° C
10.2° F
Equatorial radius3558.6 Km0.56 Earth radii
Density5.37 grams/cc0.97 Earth densities
Eccentricity of orbit0.046
Escape Velocity 6.2 Km/sec
Molecular weight retained16.3 and aboveNH3, H2O, Ne, N2, CO, NO, O2, H2S...
Axial tilt18°
Planetary albedo 0.55
Exospheric Temperature989.24° K-283.76° C Earth temperature
Length of year425.17 Earth days417.37 Local days
1.16 Earth years
Length of day24.45 hours
Boiling point of water26.5° Celcius
79.7° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 1.1
Ice cover percentage72.5


Planet #7 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star2.3E+08 KM1.564 AU
Mass9.1E+25Kg15.293 Earth masses
7.815 Earth masses dust
7.478 Earth masses gas
Equatorial radius24565.0 Km3.9 Earth radii
Density1.47 grams/cc0.27 Earth densities
Eccentricity of orbit0.236
Escape Velocity22.3 Km/sec
Molecular weight retained 0.6 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt30°
Planetary albedo 0.48
Exospheric Temperature426.97° K-846.03° C Earth temperature
Length of year798.41 Earth days1490.21 Local days
2.19 Earth years
Length of day12.86 hours


Planet #8 Statistics
Planet typeRockRock
Low-G, Cold, Airless
Distance from primary star4.6E+08 KM3.047 AU
Mass1.6E+22Kg0.003 Earth masses
Surface gravity134.0 cm/sec20.14 Earth gees
Surface pressure 0 millibars0.000 Earth atmospheres
Surface temperature-126.8° Celcius
-196.3° Fahrenheit		-140.8° C Earth temperature
-253.5° F Earth temperature
Normal temperature range
NightDay
-152.1° C
-241.7° F		 - -101.6° C
-150.9° F
MinMax
-177.2° C
-286.9° F		 - -76.7° C
-106.0° F
Equatorial radius902.2 Km0.14 Earth radii
Density5.31 grams/cc0.96 Earth densities
Eccentricity of orbit0.188
Escape Velocity 1.6 Km/sec
Molecular weight retained29.0 and aboveNO, O2, H2S, Ar, CO2, N2O, NO2, O3...
Axial tilt35°
Planetary albedo 0.07
Exospheric Temperature112.45° K-1160.55° C Earth temperature
Length of year2171.72 Earth days1250.03 Local days
5.95 Earth years
Length of day41.70 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 #9 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Normal atmosphere
Distance from primary star6.1E+08 KM4.056 AU
Mass9E+24Kg1.500 Earth masses
Surface gravity639.9 cm/sec20.65 Earth gees
Surface pressure 1526 millibars1.507 Earth atmospheres
Surface temperature-140.1° Celcius
-220.2° Fahrenheit		-154.1° C Earth temperature
-277.4° F Earth temperature
Normal temperature range
NightDay
-142.2° C
-224.0° F		 - -138.1° C
-216.6° F
MinMax
-158.1° C
-252.6° F		 - -123.6° C
-190.4° F
Equatorial radius9669.1 Km1.5 Earth radii
Density2.37 grams/cc0.43 Earth densities
Eccentricity of orbit0.167
Escape Velocity11.1 Km/sec
Molecular weight retained 0.3 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt41°
Planetary albedo 0.41
Exospheric Temperature 63.44° K-1209.56° C Earth temperature
Length of year3336.26 Earth days4226.28 Local days
9.13 Earth years
Length of day18.95 hours
Boiling point of water111.9° Celcius
233.4° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage46.6


Planet #10 Statistics
Planet typeJovianJovian
Distance from primary star7.9E+08 KM5.286 AU
Mass2E+27Kg332.252 Earth masses
26.611 Earth masses dust
305.642 Earth masses gas
Equatorial radius66734.2 Km10 Earth radii
Density1.60 grams/cc0.29 Earth densities
Eccentricity of orbit0.016
Escape Velocity63.0 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt44°
Planetary albedo 0.54
Exospheric Temperature 37.36° K-1235.64° C Earth temperature
Length of year4959.41 Earth days15884.61 Local days
13.58 Earth years
Length of day7.49 hours


Planet #11 Statistics
Planet typeMartianMartian
Low-G, Cold, Icy, Arid, Cloudless, Thin atmosphere
Distance from primary star9.9E+08 KM6.614 AU
Mass4.3E+24Kg0.711 Earth masses
Surface gravity490.3 cm/sec20.50 Earth gees
Surface pressure 343 millibars0.339 Earth atmospheres
Surface temperature-173.5° Celcius
-280.3° Fahrenheit		-187.5° C Earth temperature
-337.5° F Earth temperature
Normal temperature range
NightDay
-177.1° C
-286.8° F		 - -170.2° C
-274.3° F
MinMax
-193.9° C
-317.1° F		 - -154.9° C
-246.9° F
Equatorial radius7606.8 Km1.2 Earth radii
Density2.31 grams/cc0.42 Earth densities
Eccentricity of orbit0.035
Escape Velocity 8.6 Km/sec
Molecular weight retained 0.2 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt45°
Planetary albedo 0.35
Exospheric Temperature 23.86° K-1249.14° C Earth temperature
Length of year6946.52 Earth days7702.30 Local days
19.02 Earth years
Length of day21.65 hours
Boiling point of water72.5° Celcius
162.6° Fahrenheit
Hydrosphere percentage 0.0
Cloud cover percentage 0.0
Ice cover percentage35.7


Planet #12 Statistics
Planet typeJovianJovian
Distance from primary star1.9E+09 KM12.734 AU
Mass1.6E+27Kg268.886 Earth masses
18.357 Earth masses dust
250.529 Earth masses gas
Equatorial radius67509.7 Km11 Earth radii
Density1.25 grams/cc0.23 Earth densities
Eccentricity of orbit0.029
Escape Velocity56.4 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt31°
Planetary albedo 0.50
Exospheric Temperature 6.44° K-1266.56° C Earth temperature
Length of year18546.96 Earth days52826.52 Local days
50.78 Earth years
Length of day8.43 hours


Planet #13 Statistics
Planet typeSub-JovianSub-Jovian
Distance from primary star3.7E+09 KM24.921 AU
Mass8E+25Kg13.398 Earth masses
2.879 Earth masses dust
10.519 Earth masses gas
Equatorial radius29768.7 Km4.7 Earth radii
Density0.72 grams/cc0.13 Earth densities
Eccentricity of orbit0.001
Escape Velocity18.9 Km/sec
Molecular weight retained 0.0 and aboveH, H2, He, N, O, CH4, NH3, H2O...
Axial tilt37°
Planetary albedo 0.54
Exospheric Temperature 1.68° K-1271.32° C Earth temperature
Length of year50804.10 Earth days73251.22 Local days
139.09 Earth years
Length of day16.65 hours


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