🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.61 AU - 0.71 AU

Year: 352 Days

Day: 27.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,981,360 km

• M1: 174,282 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.3

Radius: 11.9

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.65 AU - 0.79 AU

Year: 401 Days

Day: 6.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,981,360 km

• M1: 147,952 km (0.058 R)
• M2: 629,508 km (0.117 R)
• M3: 1,034,768 km (0.099 R)
• M4: 1,626,877 km (0.084 R)
• M5: 2,063,254 km (0.09 R)
• M6: 2,533,290 km (0.092 R)
• M7: 2,915,064 km (0.053 R)
• M8: 3,555,343 km (0.058 R)
• M9: 4,123,516 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.8

Radius: 11.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.1 AU - 1.32 AU

Year: 873 Days

Day: 9.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 95.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,981,360 km

• M1: 140,622 km (0.098 R)
• M2: 542,292 km (0.032 R)
• M3: 1,047,933 km (0.11 R)
• M4: 1,411,606 km (0.109 R)
• M5: 2,007,155 km (0.092 R)
• M6: 2,547,652 km (0.052 R)
• M7: 3,119,415 km (0.088 R)
• M8: 4,120,823 km (0.105 R)
• M9: 4,587,120 km (0.083 R)
• M10: 5,124,325 km (0.117 R)
• M11: 5,859,449 km (0.079 R)
• M12: 7,058,776 km (0.115 R)
• M13: 7,944,993 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.8

Radius: 11.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.51 AU - 2.01 AU

Year: 1532 Days

Day: 15 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,981,360 km

• M1: 147,055 km (0.113 R)
• M2: 631,901 km (0.111 R)
• M3: 1,155,793 km (0.062 R)
• M4: 1,658,891 km (0.101 R)
• M5: 2,961,140 km (0.111 R)
• M6: 3,501,787 km (0.04 R)
• M7: 3,934,424 km (0.117 R)
• M8: 4,385,910 km (0.077 R)
• M9: 4,764,842 km (0.093 R)
• M10: 6,817,773 km (0.086 R)
• M11: 7,399,859 km (0.11 R)
• M12: 7,964,591 km (0.113 R)
• M13: 8,504,938 km (0.069 R)
• M14: 9,716,980 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.1

Radius: 10.6

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.57 AU - 3.15 AU

Year: 3173 Days

Day: 14.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,981,360 km

• M1: 131,796 km (0.099 R)
• M2: 640,129 km (0.119 R)
• M3: 1,228,049 km (0.041 R)
• M4: 1,923,529 km (0.11 R)
• M5: 2,413,612 km (0.047 R)
• M6: 2,796,732 km (0.074 R)
• M7: 3,239,093 km (0.062 R)
• M8: 3,894,481 km (0.027 R)
• M9: 4,287,924 km (0.119 R)
• M10: 5,104,130 km (0.065 R)
• M11: 5,992,292 km (0.076 R)
• M12: 6,886,439 km (0.105 R)
• M13: 7,697,409 km (0.071 R)
• M14: 8,534,708 km (0.098 R)
• M15: 9,354,654 km (0.116 R)
• M16: 9,783,850 km (0.072 R)
• M17: 10,349,031 km (0.117 R)
• M18: 10,893,268 km (0.059 R)
• M19: 11,456,504 km (0.091 R)
• M20: 16,013,405 km (0.12 R)
• M21: 16,628,551 km (0.088 R)
• M22: 18,025,197 km (0.115 R)
• M23: 18,386,326 km (0.111 R)
• M24: 21,993,131 km (0.112 R)
• M25: 22,336,608 km (0.104 R)
• M26: 24,252,956 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838

Radius: 13.5

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.11 AU - 5.15 AU

Year: 5506 Days

Day: 8.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,981,360 km

• M1: 167,998 km (0.104 R)
• M2: 904,170 km (0.098 R)
• M3: 1,662,631 km (0.062 R)
• M4: 2,123,542 km (0.054 R)
• M5: 3,438,806 km (0.112 R)
• M6: 4,175,127 km (0.094 R)
• M7: 5,241,161 km (0.096 R)
• M8: 6,218,634 km (0.118 R)
• M9: 7,681,851 km (0.105 R)
• M10: 11,524,122 km (0.062 R)
• M11: 12,642,067 km (0.106 R)
• M12: 13,664,718 km (0.101 R)
• M13: 15,093,228 km (0.118 R)
• M14: 16,182,002 km (0.116 R)
• M15: 17,000,452 km (0.057 R)
• M16: 17,780,156 km (0.089 R)
• M17: 18,313,173 km (0.058 R)
• M18: 19,411,221 km (0.113 R)
• M19: 20,047,910 km (0.075 R)
• M20: 21,738,366 km (0.115 R)
• M21: 29,273,012 km (0.031 R)
• M22: 29,736,466 km (0.044 R)
• M23: 32,919,161 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.3

Radius: 13.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 3.86 AU - 5.18 AU

Year: 6304 Days

Day: 9.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,981,360 km

• M1: 167,998 km (0.118 R)
• M2: 1,263,803 km (0.093 R)
• M3: 2,429,918 km (0.12 R)
• M4: 3,255,848 km (0.081 R)
• M5: 4,781,148 km (0.093 R)
• M6: 5,514,776 km (0.112 R)
• M7: 10,209,905 km (0.113 R)
• M8: 16,643,810 km (0.117 R)
• M9: 18,723,969 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.9

Radius: 3.1

Gravity: 93.33 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.08 AU - 7.78 AU

Year: 11968 Days

Day: 22.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,981,360 km

• M1: 38,596 km (0.044 R)
• M2: 720,463 km (0.12 R)
• M3: 855,101 km (0.05 R)
• M4: 1,018,014 km (0.089 R)
• M5: 1,321,398 km (0.081 R)
• M6: 1,449,603 km (0.066 R)
• M7: 1,665,623 km (0.11 R)
• M8: 3,383,305 km (0.104 R)
• M9: 6,903,493 km (0.096 R)
• M10: 8,440,611 km (0.041 R)
• M11: 8,832,857 km (0.026 R)
• M12: 9,813,022 km (0.063 R)
• M13: 10,692,657 km (0.11 R)
• M14: 14,185,020 km (0.118 R)
• M15: 14,391,016 km (0.105 R)
• M16: 16,714,271 km (0.104 R)
• M17: 23,207,566 km (0.056 R)
• M18: 25,765,092 km (0.044 R)
• M19: 26,692,449 km (0.11 R)
• M20: 27,963,133 km (0.083 R)
• M21: 30,056,606 km (0.1 R)
• M22: 34,925,268 km (0.116 R)
• M23: 41,262,085 km (0.081 R)
• M24: 45,587,857 km (0.073 R)
• M25: 46,790,474 km (0.114 R)
• M26: 50,047,519 km (0.098 R)
• M27: 51,005,095 km (0.11 R)
• M28: 54,285,178 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512.1

Radius: 4.7

Gravity: 23.18 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.77 AU - 8.77 AU

Year: 14208 Days

Day: 24.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 54,981,360 km

• M1: 58,493 km (0.072 R)
• M2: 378,782 km (0.109 R)
• M3: 545,583 km (0.091 R)
• M4: 744,249 km (0.064 R)
• M5: 1,425,817 km (0.079 R)
• M6: 2,274,785 km (0.111 R)
• M7: 2,663,889 km (0.112 R)
• M8: 2,954,708 km (0.064 R)
• M9: 4,801,044 km (0.107 R)
• M10: 6,324,250 km (0.036 R)
• M11: 8,998,312 km (0.058 R)
• M12: 10,176,395 km (0.045 R)
• M13: 10,337,213 km (0.073 R)
• M14: 10,997,837 km (0.062 R)
• M15: 11,803,571 km (0.103 R)
• M16: 11,981,144 km (0.053 R)
• M17: 12,647,902 km (0.082 R)
• M18: 13,403,072 km (0.09 R)
• M19: 13,726,502 km (0.091 R)
• M20: 18,022,803 km (0.119 R)
• M21: 18,179,732 km (0.051 R)
• M22: 19,140,300 km (0.105 R)
• M23: 19,467,769 km (0.115 R)
• M24: 20,134,228 km (0.074 R)
• M25: 21,955,582 km (0.073 R)
• M26: 22,768,796 km (0.03 R)
• M27: 23,229,109 km (0.083 R)
• M28: 26,626,626 km (0.063 R)
• M29: 29,900,126 km (0.087 R)
• M30: 31,123,388 km (0.09 R)
• M31: 31,576,371 km (0.09 R)
• M32: 33,907,105 km (0.075 R)
• M33: 34,870,815 km (0.087 R)
• M34: 37,871,000 km (0.111 R)
• M35: 42,132,744 km (0.069 R)
• M36: 48,650,724 km (0.044 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 19,636 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit