🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248

Radius: 15

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.7 AU - 1.06 AU

Year: 550 Days

Day: 9 Hours

Environment

Temp: -163 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,666,131 km

• M1: 186,848 km (0.091 R)
• M2: 890,706 km (0.111 R)
• M3: 1,381,686 km (0.076 R)
• M4: 1,969,606 km (0.061 R)
• M5: 2,705,328 km (0.114 R)
• M6: 3,373,432 km (0.045 R)
• M7: 3,854,838 km (0.098 R)
• M8: 4,746,740 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.9

Radius: 12.2

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.2 AU - 1.4 AU

Year: 988 Days

Day: 11.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,666,131 km

• M1: 151,842 km (0.063 R)
• M2: 535,860 km (0.075 R)
• M3: 1,198,877 km (0.075 R)
• M4: 1,592,918 km (0.111 R)
• M5: 2,116,959 km (0.063 R)
• M6: 3,717,058 km (0.086 R)
• M7: 4,558,846 km (0.056 R)
• M8: 4,967,696 km (0.115 R)
• M9: 5,795,571 km (0.12 R)
• M10: 6,550,143 km (0.11 R)
• M11: 8,201,105 km (0.118 R)
• M12: 8,668,000 km (0.1 R)
• M13: 10,145,279 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.3

Radius: 10

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.28 AU - 1.4 AU

Year: 1034 Days

Day: 8.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,666,131 km

• M1: 126,709 km (0.108 R)
• M2: 475,272 km (0.118 R)
• M3: 861,983 km (0.087 R)
• M4: 2,246,062 km (0.096 R)
• M5: 2,613,774 km (0.099 R)
• M6: 4,222,998 km (0.075 R)
• M7: 4,823,185 km (0.083 R)
• M8: 5,134,797 km (0.089 R)
• M9: 5,538,263 km (0.112 R)
• M10: 7,273,149 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218

Radius: 11.8

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.17 AU - 1.71 AU

Year: 1152 Days

Day: 6.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,666,131 km

• M1: 146,756 km (0.091 R)
• M2: 666,907 km (0.064 R)
• M3: 1,161,179 km (0.06 R)
• M4: 1,577,061 km (0.115 R)
• M5: 3,140,957 km (0.089 R)
• M6: 4,068,613 km (0.026 R)
• M7: 5,800,657 km (0.089 R)
• M8: 6,957,498 km (0.083 R)
• M9: 7,523,576 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.4

Radius: 11.5

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.45 AU - 3.67 AU

Year: 4479 Days

Day: 8.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,666,131 km

• M1: 143,165 km (0.048 R)
• M2: 689,048 km (0.106 R)
• M3: 1,454,690 km (0.044 R)
• M4: 2,012,391 km (0.084 R)
• M5: 3,365,653 km (0.115 R)
• M6: 4,016,404 km (0.079 R)
• M7: 5,021,402 km (0.071 R)
• M8: 6,071,280 km (0.104 R)
• M9: 7,793,002 km (0.116 R)
• M10: 11,019,230 km (0.034 R)
• M11: 12,453,574 km (0.052 R)
• M12: 16,410,138 km (0.093 R)
• M13: 17,036,355 km (0.064 R)
• M14: 17,619,488 km (0.087 R)
• M15: 23,056,323 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.6

Radius: 7.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.25 AU - 7.01 AU

Year: 10121 Days

Day: 22.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,666,131 km

• M1: 101,278 km (0.087 R)
• M2: 1,970,054 km (0.062 R)
• M3: 2,776,686 km (0.051 R)
• M4: 3,322,120 km (0.088 R)
• M5: 4,552,862 km (0.119 R)
• M6: 6,663,837 km (0.113 R)
• M7: 7,707,432 km (0.116 R)
• M8: 12,361,571 km (0.075 R)
• M9: 14,974,448 km (0.118 R)
• M10: 15,902,852 km (0.032 R)
• M11: 17,574,459 km (0.112 R)
• M12: 19,169,770 km (0.092 R)
• M13: 19,487,367 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.6

Radius: 6.2

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.57 AU - 8.53 AU

Year: 12483 Days

Day: 17.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 17,666,131 km

• M1: 78,090 km (0.118 R)
• M2: 388,057 km (0.12 R)
• M3: 628,610 km (0.077 R)
• M4: 837,598 km (0.115 R)
• M5: 1,093,560 km (0.109 R)
• M6: 1,618,799 km (0.116 R)
• M7: 2,263,117 km (0.073 R)
• M8: 2,564,257 km (0.073 R)
• M9: 2,786,560 km (0.04 R)
• M10: 3,293,248 km (0.119 R)
• M11: 3,556,540 km (0.107 R)
• M12: 4,431,687 km (0.084 R)
• M13: 5,845,387 km (0.055 R)
• M14: 6,825,104 km (0.087 R)
• M15: 7,135,220 km (0.07 R)
• M16: 7,659,411 km (0.065 R)
• M17: 8,165,650 km (0.061 R)
• M18: 8,471,129 km (0.119 R)
• M19: 11,573,340 km (0.031 R)
• M20: 12,467,337 km (0.102 R)
• M21: 12,814,105 km (0.115 R)
• M22: 15,424,737 km (0.042 R)
• M23: 16,575,294 km (0.111 R)
• M24: 19,973,859 km (0.091 R)
• M25: 20,369,246 km (0.068 R)
• M26: 20,850,502 km (0.104 R)
• M27: 21,339,239 km (0.112 R)
• M28: 22,594,514 km (0.048 R)
• M29: 27,327,342 km (0.093 R)
• M30: 27,521,520 km (0.112 R)
• M31: 31,388,326 km (0.093 R)
• M32: 40,555,384 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.2

Radius: 6.8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.91 AU - 11.31 AU

Year: 18336 Days

Day: 23.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 17,666,131 km

• M1: 86,019 km (0.109 R)
• M2: 462,257 km (0.054 R)
• M3: 688,150 km (0.117 R)
• M4: 918,531 km (0.053 R)
• M5: 1,159,832 km (0.029 R)
• M6: 1,613,114 km (0.086 R)
• M7: 2,614,223 km (0.091 R)
• M8: 3,695,516 km (0.095 R)
• M9: 4,480,755 km (0.109 R)
• M10: 6,484,170 km (0.12 R)
• M11: 9,849,524 km (0.116 R)
• M12: 12,147,796 km (0.081 R)
• M13: 12,646,854 km (0.088 R)
• M14: 16,784,582 km (0.064 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 10,774 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit