🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.5

Radius: 11.9

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.77 AU - 0.79 AU

Year: 438 Days

Day: 11.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,073,400 km

• M1: 147,952 km (0.092 R)
• M2: 528,529 km (0.031 R)
• M3: 916,885 km (0.072 R)
• M4: 1,372,860 km (0.081 R)
• M5: 1,766,900 km (0.109 R)
• M6: 2,463,129 km (0.11 R)
• M7: 3,044,317 km (0.072 R)
• M8: 3,812,053 km (0.101 R)
• M9: 5,096,051 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.3

Radius: 14.6

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.95 AU - 1.45 AU

Year: 836 Days

Day: 10.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,073,400 km

• M1: 181,911 km (0.12 R)
• M2: 741,407 km (0.117 R)
• M3: 1,246,300 km (0.097 R)
• M4: 1,840,652 km (0.085 R)
• M5: 2,463,578 km (0.036 R)
• M6: 3,119,116 km (0.101 R)
• M7: 3,678,013 km (0.084 R)
• M8: 4,748,236 km (0.072 R)
• M9: 5,261,357 km (0.114 R)
• M10: 5,954,893 km (0.071 R)
• M11: 6,709,016 km (0.091 R)
• M12: 7,647,892 km (0.116 R)
• M13: 8,175,075 km (0.109 R)
• M14: 9,415,241 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.2

Radius: 9.8

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.62 AU - 2.26 AU

Year: 1718 Days

Day: 11 Hours

Environment

Temp: -198 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,073,400 km

• M1: 121,922 km (0.078 R)
• M2: 521,199 km (0.092 R)
• M3: 834,008 km (0.055 R)
• M4: 1,317,508 km (0.033 R)
• M5: 2,282,564 km (0.035 R)
• M6: 2,653,567 km (0.053 R)
• M7: 3,108,345 km (0.11 R)
• M8: 3,582,271 km (0.089 R)
• M9: 3,913,181 km (0.095 R)
• M10: 4,560,790 km (0.104 R)
• M11: 4,970,688 km (0.069 R)
• M12: 5,511,934 km (0.101 R)
• M13: 6,161,787 km (0.111 R)
• M14: 9,068,324 km (0.109 R)
• M15: 9,592,066 km (0.035 R)
• M16: 10,465,269 km (0.076 R)
• M17: 10,904,189 km (0.116 R)
• M18: 12,556,647 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.2

Radius: 10.1

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.32 AU - 2.7 AU

Year: 2528 Days

Day: 13.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,073,400 km

• M1: 127,308 km (0.111 R)
• M2: 504,594 km (0.053 R)
• M3: 968,347 km (0.084 R)
• M4: 2,407,628 km (0.115 R)
• M5: 7,906,846 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.7

Radius: 9.5

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.66 AU - 2.8 AU

Year: 2868 Days

Day: 8.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,073,400 km

• M1: 118,182 km (0.074 R)
• M2: 489,634 km (0.112 R)
• M3: 798,553 km (0.099 R)
• M4: 1,128,866 km (0.1 R)
• M5: 1,584,391 km (0.094 R)
• M6: 1,974,841 km (0.079 R)
• M7: 2,414,510 km (0.088 R)
• M8: 2,851,784 km (0.097 R)
• M9: 3,359,819 km (0.085 R)
• M10: 3,947,888 km (0.114 R)
• M11: 5,103,681 km (0.067 R)
• M12: 6,825,852 km (0.11 R)
• M13: 7,350,192 km (0.117 R)
• M14: 8,479,806 km (0.085 R)
• M15: 8,868,910 km (0.111 R)
• M16: 10,505,660 km (0.102 R)
• M17: 10,831,185 km (0.12 R)
• M18: 11,289,703 km (0.088 R)
• M19: 11,979,498 km (0.079 R)
• M20: 12,606,014 km (0.114 R)
• M21: 13,827,481 km (0.073 R)
• M22: 14,169,312 km (0.103 R)
• M23: 15,177,452 km (0.06 R)
• M24: 15,488,915 km (0.092 R)
• M25: 17,848,522 km (0.111 R)
• M26: 19,143,890 km (0.064 R)
• M27: 20,564,023 km (0.037 R)
• M28: 22,386,274 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18

Radius: 10.2

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.83 AU - 5.31 AU

Year: 7258 Days

Day: 14.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,073,400 km

• M1: 151,842 km (0.101 R)
• M2: 535,860 km (0.064 R)
• M3: 871,856 km (0.102 R)
• M4: 2,710,564 km (0.05 R)
• M5: 3,489,370 km (0.06 R)
• M6: 5,803,201 km (0.096 R)
• M7: 7,596,580 km (0.083 R)
• M8: 7,990,022 km (0.053 R)
• M9: 10,292,184 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.8

Radius: 3.1

Gravity: 36.19 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.01 AU - 8.87 AU

Year: 12903 Days

Day: 23.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,073,400 km

• M1: 38,596 km (0.101 R)
• M2: 224,098 km (0.087 R)
• M3: 417,378 km (0.065 R)
• M4: 618,737 km (0.054 R)
• M5: 763,248 km (0.026 R)
• M6: 1,054,067 km (0.084 R)
• M7: 1,298,210 km (0.1 R)
• M8: 1,413,849 km (0.102 R)
• M9: 1,636,451 km (0.082 R)
• M10: 1,881,941 km (0.107 R)
• M11: 2,426,477 km (0.106 R)
• M12: 3,091,590 km (0.083 R)
• M13: 4,533,115 km (0.06 R)
• M14: 5,431,599 km (0.094 R)
• M15: 5,530,783 km (0.109 R)
• M16: 6,591,133 km (0.112 R)
• M17: 6,818,372 km (0.053 R)
• M18: 6,934,011 km (0.038 R)
• M19: 7,050,847 km (0.034 R)
• M20: 8,205,892 km (0.116 R)
• M21: 11,578,576 km (0.1 R)
• M22: 12,474,518 km (0.116 R)
• M23: 12,822,033 km (0.094 R)
• M24: 13,057,351 km (0.069 R)
• M25: 13,719,172 km (0.098 R)
• M26: 14,340,003 km (0.047 R)
• M27: 16,799,990 km (0.118 R)
• M28: 17,295,010 km (0.108 R)
• M29: 18,388,421 km (0.074 R)
• M30: 19,527,160 km (0.063 R)
• M31: 20,391,387 km (0.115 R)
• M32: 21,445,304 km (0.112 R)
• M33: 30,167,308 km (0.116 R)
• M34: 35,070,678 km (0.093 R)
• M35: 36,228,116 km (0.109 R)
• M36: 36,816,186 km (0.034 R)
• M37: 42,398,430 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.1

Radius: 3

Gravity: 36.68 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 10.32 AU - 11.42 AU

Year: 22786 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,073,400 km

• M1: 38,596 km (0.089 R)
• M2: 303,684 km (0.12 R)
• M3: 1,017,415 km (0.071 R)
• M4: 1,303,297 km (0.097 R)
• M5: 2,922,394 km (0.109 R)
• M6: 5,464,810 km (0.094 R)
• M7: 6,003,363 km (0.112 R)
• M8: 7,184,887 km (0.063 R)
• M9: 7,735,706 km (0.105 R)
• M10: 8,069,608 km (0.119 R)
• M11: 9,287,784 km (0.08 R)
• M12: 12,661,066 km (0.072 R)
• M13: 18,820,011 km (0.112 R)
• M14: 23,511,699 km (0.103 R)
• M15: 26,498,420 km (0.066 R)
• M16: 27,694,455 km (0.102 R)
• M17: 33,711,731 km (0.116 R)
• M18: 38,036,455 km (0.111 R)
• M19: 56,327,488 km (0.057 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 14,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit