🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.42 AU - 0.68 AU

Year: 259 Days

Day: 14.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,109,347 km

• M1: 37,399 km (0.097 R)
• M2: 178,021 km (0.055 R)

Asteroid Belt

Center: 0.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.1

Radius: 13.3

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.91 AU - 1.43 AU

Year: 805 Days

Day: 10.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,109,347 km

• M1: 165,455 km (0.088 R)
• M2: 629,508 km (0.099 R)
• M3: 1,161,328 km (0.098 R)
• M4: 1,609,823 km (0.117 R)
• M5: 2,088,985 km (0.103 R)
• M6: 2,721,036 km (0.113 R)
• M7: 3,211,268 km (0.066 R)
• M8: 3,952,376 km (0.115 R)
• M9: 4,404,461 km (0.107 R)
• M10: 5,085,131 km (0.117 R)
• M11: 6,614,470 km (0.107 R)
• M12: 7,323,863 km (0.098 R)
• M13: 7,792,703 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.1

Radius: 9.6

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.17 AU - 1.39 AU

Year: 921 Days

Day: 13.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,109,347 km

• M1: 125,213 km (0.071 R)
• M2: 465,249 km (0.118 R)
• M3: 839,693 km (0.083 R)
• M4: 1,521,410 km (0.096 R)
• M5: 1,872,816 km (0.044 R)
• M6: 2,278,525 km (0.114 R)
• M7: 3,302,822 km (0.075 R)
• M8: 3,684,446 km (0.061 R)
• M9: 4,189,339 km (0.053 R)
• M10: 4,652,045 km (0.1 R)
• M11: 5,009,733 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.9

Radius: 14.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.61 AU - 2.33 AU

Year: 1758 Days

Day: 13.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,109,347 km

• M1: 189,092 km (0.082 R)
• M2: 789,877 km (0.081 R)
• M3: 1,518,867 km (0.044 R)
• M4: 2,586,697 km (0.118 R)
• M5: 3,068,103 km (0.085 R)
• M6: 4,006,530 km (0.049 R)
• M7: 4,524,887 km (0.091 R)
• M8: 5,830,577 km (0.037 R)
• M9: 6,499,429 km (0.104 R)
• M10: 7,909,239 km (0.113 R)
• M11: 8,789,174 km (0.038 R)
• M12: 10,610,079 km (0.028 R)
• M13: 12,335,092 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.3

Radius: 14.7

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.06 AU - 2.44 AU

Year: 2146 Days

Day: 8.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,109,347 km

• M1: 182,809 km (0.107 R)
• M2: 880,533 km (0.077 R)
• M3: 1,474,885 km (0.093 R)
• M4: 1,938,489 km (0.091 R)
• M5: 2,856,272 km (0.12 R)
• M6: 3,881,018 km (0.118 R)
• M7: 4,598,938 km (0.12 R)
• M8: 5,079,297 km (0.088 R)
• M9: 6,418,048 km (0.116 R)
• M10: 7,451,171 km (0.043 R)
• M11: 8,939,221 km (0.096 R)
• M12: 9,599,546 km (0.118 R)
• M13: 11,119,460 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.3

Radius: 8

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.16 AU - 3.88 AU

Year: 4199 Days

Day: 14.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,109,347 km

• M1: 125,064 km (0.088 R)
• M2: 374,443 km (0.09 R)
• M3: 652,396 km (0.079 R)
• M4: 920,476 km (0.072 R)
• M5: 1,352,066 km (0.098 R)
• M6: 1,679,386 km (0.108 R)
• M7: 2,510,851 km (0.035 R)
• M8: 4,093,596 km (0.071 R)
• M9: 6,309,290 km (0.068 R)
• M10: 8,132,888 km (0.095 R)
• M11: 9,566,933 km (0.116 R)
• M12: 10,695,500 km (0.119 R)
• M13: 11,205,479 km (0.078 R)
• M14: 14,715,045 km (0.109 R)
• M15: 17,116,091 km (0.086 R)
• M16: 18,651,414 km (0.085 R)
• M17: 19,829,946 km (0.064 R)
• M18: 20,991,573 km (0.107 R)
• M19: 22,266,147 km (0.093 R)
• M20: 24,237,548 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.2

Radius: 12.7

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 4.31 AU - 6.53 AU

Year: 8023 Days

Day: 6.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,109,347 km

• M1: 157,975 km (0.074 R)
• M2: 711,338 km (0.042 R)
• M3: 2,446,224 km (0.09 R)
• M4: 3,264,974 km (0.089 R)
• M5: 3,923,653 km (0.054 R)
• M6: 8,848,564 km (0.097 R)
• M7: 10,131,965 km (0.111 R)
• M8: 13,701,968 km (0.113 R)
• M9: 14,542,110 km (0.116 R)
• M10: 15,289,052 km (0.088 R)
• M11: 16,658,022 km (0.106 R)
• M12: 17,894,897 km (0.063 R)
• M13: 23,799,974 km (0.107 R)
• M14: 25,995,921 km (0.1 R)
• M15: 29,983,901 km (0.073 R)
• M16: 32,123,300 km (0.034 R)
• M17: 37,507,627 km (0.116 R)
• M18: 39,388,521 km (0.089 R)
• M19: 40,109,732 km (0.061 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.5

Radius: 9

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.43 AU - 6.47 AU

Year: 8090 Days

Day: 11.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 36,109,347 km

• M1: 157,227 km (0.112 R)
• M2: 730,187 km (0.095 R)
• M3: 1,143,377 km (0.119 R)
• M4: 1,564,495 km (0.111 R)
• M5: 2,556,777 km (0.119 R)
• M6: 2,994,052 km (0.063 R)
• M7: 3,684,745 km (0.077 R)
• M8: 4,068,164 km (0.072 R)
• M9: 4,611,654 km (0.105 R)
• M10: 5,748,747 km (0.075 R)
• M11: 7,694,566 km (0.05 R)
• M12: 9,112,904 km (0.098 R)
• M13: 9,816,313 km (0.112 R)
• M14: 11,281,475 km (0.054 R)
• M15: 12,353,493 km (0.107 R)
• M16: 15,420,100 km (0.087 R)
• M17: 20,032,501 km (0.085 R)
• M18: 20,398,567 km (0.079 R)
• M19: 21,144,462 km (0.118 R)
• M20: 21,908,159 km (0.049 R)
• M21: 23,980,239 km (0.092 R)
• M22: 24,643,108 km (0.107 R)
• M23: 25,832,710 km (0.104 R)
• M24: 26,617,351 km (0.09 R)
• M25: 27,869,335 km (0.084 R)
• M26: 29,915,535 km (0.068 R)
• M27: 30,394,099 km (0.117 R)
• M28: 31,072,824 km (0.1 R)
• M29: 33,373,939 km (0.085 R)
• M30: 34,723,611 km (0.052 R)
• M31: 35,252,289 km (0.094 R)
• M32: 35,893,765 km (0.081 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 18,942 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit