🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.9

Radius: 14.6

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.57 AU - 0.63 AU

Year: 310 Days

Day: 9.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,285,175 km

• M1: 191,635 km (0.088 R)
• M2: 683,812 km (0.109 R)
• M3: 1,633,160 km (0.095 R)
• M4: 2,110,078 km (0.043 R)
• M5: 2,732,256 km (0.09 R)
• M6: 3,200,946 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.5

Radius: 12.4

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.73 AU - 0.85 AU

Year: 468 Days

Day: 6 Hours

Environment

Temp: -172 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,285,175 km

• M1: 154,235 km (0.105 R)
• M2: 590,762 km (0.106 R)
• M3: 984,204 km (0.06 R)
• M4: 1,433,148 km (0.097 R)
• M5: 1,878,650 km (0.106 R)
• M6: 2,398,802 km (0.101 R)
• M7: 3,111,935 km (0.048 R)
• M8: 3,537,242 km (0.118 R)
• M9: 4,449,489 km (0.088 R)
• M10: 4,886,016 km (0.089 R)
• M11: 5,367,123 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359

Radius: 14

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.75 AU - 0.95 AU

Year: 523 Days

Day: 11.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,285,175 km

• M1: 174,132 km (0.085 R)
• M2: 610,359 km (0.076 R)
• M3: 1,220,719 km (0.056 R)
• M4: 1,711,400 km (0.102 R)
• M5: 2,344,498 km (0.087 R)
• M6: 3,035,490 km (0.104 R)
• M7: 4,974,877 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.7

Radius: 8.9

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.98 AU - 1.38 AU

Year: 855 Days

Day: 10.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,285,175 km

• M1: 110,702 km (0.081 R)
• M2: 396,883 km (0.076 R)
• M3: 727,943 km (0.04 R)
• M4: 1,139,487 km (0.118 R)
• M5: 1,595,910 km (0.059 R)
• M6: 1,939,387 km (0.047 R)
• M7: 2,361,253 km (0.12 R)
• M8: 2,658,055 km (0.111 R)
• M9: 3,180,451 km (0.088 R)
• M10: 3,715,862 km (0.083 R)
• M11: 4,250,823 km (0.101 R)
• M12: 5,509,690 km (0.106 R)
• M13: 6,398,600 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.2

Radius: 14.6

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.18 AU - 1.34 AU

Year: 943 Days

Day: 6.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,285,175 km

• M1: 181,612 km (0.064 R)
• M2: 757,414 km (0.101 R)
• M3: 1,451,997 km (0.055 R)
• M4: 2,796,283 km (0.091 R)
• M5: 3,786,173 km (0.062 R)
• M6: 7,273,448 km (0.116 R)
• M7: 8,639,427 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.3

Radius: 14.8

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.76 AU - 2.82 AU

Year: 2311 Days

Day: 13.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,285,175 km

• M1: 184,005 km (0.113 R)
• M2: 809,923 km (0.074 R)
• M3: 1,371,962 km (0.091 R)
• M4: 2,021,067 km (0.111 R)
• M5: 3,048,805 km (0.069 R)
• M6: 3,912,134 km (0.084 R)
• M7: 4,956,626 km (0.052 R)
• M8: 5,582,544 km (0.047 R)
• M9: 6,233,893 km (0.118 R)
• M10: 7,534,497 km (0.069 R)
• M11: 8,699,864 km (0.063 R)
• M12: 9,686,911 km (0.09 R)
• M13: 11,884,204 km (0.047 R)
• M14: 12,788,224 km (0.077 R)
• M15: 13,461,714 km (0.111 R)
• M16: 14,685,125 km (0.063 R)
• M17: 16,187,537 km (0.066 R)
• M18: 16,657,723 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.8

Radius: 12.5

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.9 AU - 5.48 AU

Year: 6773 Days

Day: 14.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,285,175 km

• M1: 157,078 km (0.034 R)
• M2: 901,776 km (0.092 R)
• M3: 1,387,371 km (0.062 R)
• M4: 1,857,856 km (0.093 R)
• M5: 2,284,210 km (0.098 R)
• M6: 3,317,782 km (0.065 R)
• M7: 4,050,213 km (0.086 R)
• M8: 4,587,718 km (0.109 R)
• M9: 5,558,907 km (0.062 R)
• M10: 6,158,645 km (0.035 R)
• M11: 6,766,461 km (0.091 R)
• M12: 8,341,128 km (0.032 R)
• M13: 10,239,974 km (0.112 R)
• M14: 10,708,964 km (0.1 R)
• M15: 12,945,452 km (0.066 R)
• M16: 15,908,686 km (0.049 R)
• M17: 19,156,456 km (0.095 R)
• M18: 20,749,075 km (0.088 R)
• M19: 22,981,225 km (0.07 R)
• M20: 23,950,170 km (0.109 R)
• M21: 24,778,195 km (0.117 R)
• M22: 25,199,313 km (0.105 R)
• M23: 27,198,538 km (0.091 R)
• M24: 34,035,012 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78.4

Radius: 3.5

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.49 AU - 7.83 AU

Year: 12776 Days

Day: 23.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,285,175 km

• M1: 45,179 km (0.114 R)
• M2: 222,452 km (0.072 R)
• M3: 1,035,666 km (0.094 R)
• M4: 1,834,070 km (0.104 R)
• M5: 3,012,752 km (0.102 R)
• M6: 3,979,752 km (0.093 R)
• M7: 4,496,613 km (0.118 R)
• M8: 5,004,049 km (0.085 R)
• M9: 7,908,791 km (0.106 R)
• M10: 8,645,710 km (0.043 R)
• M11: 9,507,992 km (0.059 R)
• M12: 11,817,484 km (0.083 R)
• M13: 16,550,012 km (0.12 R)
• M14: 17,263,295 km (0.105 R)
• M15: 18,308,535 km (0.116 R)
• M16: 21,070,262 km (0.113 R)
• M17: 26,348,374 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 546.6

Radius: 4.6

Gravity: 25.83 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 7.58 AU - 11.1 AU

Year: 19035 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,285,175 km

• M1: 68,516 km (0.059 R)
• M2: 296,802 km (0.114 R)
• M3: 563,086 km (0.088 R)
• M4: 823,985 km (0.073 R)
• M5: 1,149,061 km (0.107 R)
• M6: 1,507,348 km (0.109 R)
• M7: 1,704,069 km (0.103 R)
• M8: 2,012,091 km (0.035 R)
• M9: 3,007,665 km (0.117 R)
• M10: 3,771,512 km (0.114 R)
• M11: 4,456,670 km (0.091 R)
• M12: 5,112,058 km (0.048 R)
• M13: 6,569,142 km (0.084 R)
• M14: 7,415,566 km (0.056 R)
• M15: 10,504,912 km (0.099 R)
• M16: 12,626,210 km (0.115 R)
• M17: 17,692,491 km (0.098 R)
• M18: 20,121,662 km (0.058 R)
• M19: 23,359,259 km (0.057 R)
• M20: 28,042,420 km (0.09 R)
• M21: 34,728,547 km (0.103 R)
• M22: 43,605,535 km (0.089 R)
• M23: 48,480,780 km (0.095 R)
• M24: 48,971,013 km (0.111 R)
• M25: 57,270,553 km (0.102 R)
• M26: 64,469,651 km (0.113 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 17,160 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit