🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.7

Radius: 8.7

Gravity: 13.05 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.67 AU - 0.85 AU

Year: 435 Days

Day: 13.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 14,210,042 km

• M1: 108,309 km (0.094 R)
• M2: 428,448 km (0.111 R)
• M3: 761,902 km (0.075 R)
• M4: 1,156,840 km (0.032 R)
• M5: 1,595,760 km (0.025 R)
• M6: 2,465,373 km (0.11 R)
• M7: 2,875,570 km (0.102 R)
• M8: 3,543,824 km (0.032 R)
• M9: 3,860,373 km (0.089 R)
• M10: 4,268,027 km (0.051 R)
• M11: 4,611,654 km (0.099 R)
• M12: 5,474,384 km (0.06 R)
• M13: 5,790,634 km (0.052 R)
• M14: 6,231,350 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.7

Radius: 9.1

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.79 AU - 0.85 AU

Year: 487 Days

Day: 10 Hours

Environment

Temp: -147 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 14,210,042 km

• M1: 113,395 km (0.105 R)
• M2: 437,125 km (0.099 R)
• M3: 951,143 km (0.043 R)
• M4: 1,289,683 km (0.089 R)
• M5: 1,843,644 km (0.118 R)
• M6: 2,236,189 km (0.1 R)
• M7: 2,684,085 km (0.094 R)
• M8: 3,435,964 km (0.069 R)
• M9: 4,219,707 km (0.084 R)
• M10: 4,623,023 km (0.1 R)
• M11: 5,200,920 km (0.079 R)
• M12: 5,542,302 km (0.087 R)
• M13: 5,862,292 km (0.094 R)
• M14: 6,481,029 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.1

Radius: 10.7

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.82 AU - 0.96 AU

Year: 551 Days

Day: 6.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,210,042 km

• M1: 133,142 km (0.037 R)
• M2: 500,554 km (0.076 R)
• M3: 1,427,014 km (0.116 R)
• M4: 2,000,872 km (0.046 R)
• M5: 2,458,641 km (0.091 R)
• M6: 3,661,109 km (0.081 R)
• M7: 4,049,016 km (0.06 R)
• M8: 4,393,091 km (0.091 R)
• M9: 4,938,525 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.7

Radius: 10.6

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.91 AU - 0.93 AU

Year: 579 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,210,042 km

• M1: 132,843 km (0.071 R)
• M2: 477,965 km (0.099 R)
• M3: 1,173,745 km (0.096 R)
• M4: 1,552,078 km (0.055 R)
• M5: 2,849,241 km (0.092 R)
• M6: 3,510,314 km (0.091 R)
• M7: 3,954,171 km (0.115 R)
• M8: 4,762,897 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.4

Radius: 13.1

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.93 AU - 0.93 AU

Year: 588 Days

Day: 5.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,210,042 km

• M1: 162,912 km (0.054 R)
• M2: 590,014 km (0.051 R)
• M3: 1,147,565 km (0.082 R)
• M4: 1,670,559 km (0.105 R)
• M5: 2,282,265 km (0.03 R)
• M6: 2,980,289 km (0.108 R)
• M7: 3,662,455 km (0.095 R)
• M8: 4,804,186 km (0.119 R)
• M9: 5,916,745 km (0.107 R)
• M10: 7,041,273 km (0.079 R)
• M11: 7,506,672 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.8

Radius: 14.2

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.17 AU - 1.19 AU

Year: 841 Days

Day: 12.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,210,042 km

• M1: 176,525 km (0.091 R)
• M2: 683,064 km (0.101 R)
• M3: 2,121,896 km (0.115 R)
• M4: 2,622,899 km (0.119 R)
• M5: 3,991,421 km (0.099 R)
• M6: 4,905,464 km (0.072 R)
• M7: 6,414,757 km (0.042 R)
• M8: 7,034,541 km (0.112 R)
• M9: 9,274,021 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339

Radius: 13.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.04 AU - 2.56 AU

Year: 2288 Days

Day: 11.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 14,210,042 km

• M1: 172,636 km (0.057 R)
• M2: 630,854 km (0.044 R)
• M3: 1,340,995 km (0.059 R)
• M4: 2,019,422 km (0.041 R)
• M5: 3,527,368 km (0.064 R)
• M6: 4,019,844 km (0.112 R)
• M7: 5,872,913 km (0.116 R)
• M8: 6,618,808 km (0.058 R)
• M9: 7,185,784 km (0.119 R)
• M10: 8,154,879 km (0.116 R)
• M11: 10,150,216 km (0.092 R)
• M12: 11,118,712 km (0.057 R)
• M13: 11,810,154 km (0.074 R)
• M14: 12,491,721 km (0.052 R)
• M15: 14,142,235 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.8

Radius: 14.8

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.41 AU - 3.99 AU

Year: 3755 Days

Day: 14.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 14,210,042 km

• M1: 184,155 km (0.059 R)
• M2: 732,282 km (0.115 R)
• M3: 1,217,427 km (0.1 R)
• M4: 2,290,044 km (0.079 R)
• M5: 2,887,837 km (0.066 R)
• M6: 3,861,719 km (0.078 R)
• M7: 5,335,707 km (0.077 R)
• M8: 6,246,309 km (0.095 R)
• M9: 7,769,066 km (0.038 R)
• M10: 10,436,546 km (0.113 R)
• M11: 12,766,233 km (0.092 R)
• M12: 16,100,172 km (0.117 R)
• M13: 17,329,866 km (0.05 R)
• M14: 19,452,660 km (0.072 R)
• M15: 21,395,936 km (0.068 R)
• M16: 22,024,696 km (0.117 R)
• M17: 23,687,327 km (0.056 R)
• M18: 25,510,027 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15.6

Radius: 6.2

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 6.27 AU - 6.59 AU

Year: 10696 Days

Day: 19 Hours

Environment

Temp: -230 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 14,210,042 km

• M1: 77,043 km (0.115 R)
• M2: 1,177,485 km (0.087 R)
• M3: 1,535,024 km (0.097 R)
• M4: 2,777,883 km (0.111 R)
• M5: 3,412,926 km (0.116 R)
• M6: 5,092,760 km (0.097 R)
• M7: 6,758,084 km (0.119 R)
• M8: 7,615,728 km (0.096 R)
• M9: 10,448,813 km (0.118 R)
• M10: 11,629,439 km (0.076 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 17,465 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit