🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.95 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342

Radius: 11.8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.81 AU - 1.97 AU

Year: 1705 Days

Day: 13.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,686,966 km

• M1: 147,055 km (0.104 R)
• M2: 528,529 km (0.073 R)
• M3: 1,136,794 km (0.091 R)
• M4: 3,420,256 km (0.104 R)
• M5: 4,786,533 km (0.029 R)
• M6: 5,314,614 km (0.115 R)
• M7: 6,842,906 km (0.046 R)
• M8: 7,721,793 km (0.114 R)
• M9: 8,505,836 km (0.056 R)
• M10: 9,135,344 km (0.087 R)
• M11: 10,747,261 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.8

Radius: 12.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.98 AU - 2.46 AU

Year: 2170 Days

Day: 5.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,686,966 km

• M1: 160,369 km (0.085 R)
• M2: 574,456 km (0.099 R)
• M3: 1,070,074 km (0.045 R)
• M4: 2,052,333 km (0.118 R)
• M5: 2,587,744 km (0.1 R)
• M6: 3,171,924 km (0.099 R)
• M7: 4,186,347 km (0.106 R)
• M8: 4,625,865 km (0.115 R)
• M9: 5,076,005 km (0.062 R)
• M10: 6,343,249 km (0.102 R)
• M11: 6,925,484 km (0.094 R)
• M12: 7,757,248 km (0.038 R)
• M13: 8,281,888 km (0.082 R)
• M14: 8,859,784 km (0.071 R)
• M15: 9,935,842 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.6

Radius: 14.1

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.43 AU - 3.37 AU

Year: 3240 Days

Day: 9 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,686,966 km

• M1: 189,840 km (0.082 R)
• M2: 720,912 km (0.075 R)
• M3: 1,208,452 km (0.116 R)
• M4: 2,700,990 km (0.079 R)
• M5: 3,246,124 km (0.119 R)
• M6: 4,055,149 km (0.112 R)
• M7: 4,950,493 km (0.111 R)
• M8: 5,798,413 km (0.057 R)
• M9: 9,234,677 km (0.083 R)
• M10: 11,560,475 km (0.117 R)
• M11: 12,752,919 km (0.048 R)
• M12: 14,437,691 km (0.111 R)
• M13: 14,952,008 km (0.08 R)
• M14: 15,624,301 km (0.101 R)
• M15: 16,823,777 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.8

Radius: 13

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.73 AU - 3.31 AU

Year: 3443 Days

Day: 11.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,686,966 km

• M1: 161,715 km (0.06 R)
• M2: 823,536 km (0.083 R)
• M3: 1,242,710 km (0.075 R)
• M4: 2,063,403 km (0.096 R)
• M5: 3,041,175 km (0.095 R)
• M6: 3,458,254 km (0.044 R)
• M7: 3,932,928 km (0.12 R)
• M8: 5,151,253 km (0.098 R)
• M9: 5,625,478 km (0.074 R)
• M10: 8,069,309 km (0.088 R)
• M11: 8,482,648 km (0.078 R)
• M12: 9,112,306 km (0.069 R)
• M13: 12,954,278 km (0.089 R)
• M14: 16,363,165 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.7

Radius: 10.8

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.69 AU - 4.43 AU

Year: 4406 Days

Day: 8.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,686,966 km

• M1: 143,315 km (0.077 R)
• M2: 1,053,169 km (0.12 R)
• M3: 1,755,082 km (0.077 R)
• M4: 3,623,709 km (0.068 R)
• M5: 4,225,990 km (0.094 R)
• M6: 4,966,949 km (0.032 R)
• M7: 6,857,716 km (0.081 R)
• M8: 7,261,630 km (0.092 R)
• M9: 9,261,305 km (0.114 R)
• M10: 12,044,424 km (0.107 R)
• M11: 12,912,241 km (0.043 R)
• M12: 13,821,198 km (0.096 R)
• M13: 20,702,101 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.4

Radius: 11.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.79 AU - 4.05 AU

Year: 5091 Days

Day: 9.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,686,966 km

• M1: 141,819 km (0.061 R)
• M2: 618,886 km (0.107 R)
• M3: 1,092,663 km (0.045 R)
• M4: 2,120,999 km (0.048 R)
• M5: 2,565,903 km (0.04 R)
• M6: 3,127,194 km (0.109 R)
• M7: 3,686,840 km (0.102 R)
• M8: 4,473,575 km (0.067 R)
• M9: 6,682,238 km (0.098 R)
• M10: 7,153,770 km (0.109 R)
• M11: 8,163,705 km (0.099 R)
• M12: 8,776,757 km (0.091 R)
• M13: 10,465,269 km (0.096 R)
• M14: 12,976,269 km (0.053 R)
• M15: 13,862,187 km (0.11 R)
• M16: 15,645,095 km (0.088 R)
• M17: 16,478,505 km (0.097 R)
• M18: 21,701,714 km (0.111 R)
• M19: 24,097,823 km (0.105 R)
• M20: 24,834,892 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81

Radius: 3.7

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.91 AU - 11.51 AU

Year: 19849 Days

Day: 18.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,686,966 km

• M1: 106,962 km (0.102 R)
• M2: 379,979 km (0.08 R)
• M3: 969,993 km (0.04 R)
• M4: 1,504,655 km (0.114 R)
• M5: 2,147,477 km (0.066 R)
• M6: 3,588,105 km (0.054 R)
• M7: 6,424,929 km (0.117 R)
• M8: 7,064,610 km (0.096 R)
• M9: 7,668,088 km (0.058 R)
• M10: 10,191,056 km (0.091 R)
• M11: 13,050,320 km (0.108 R)
• M12: 14,602,398 km (0.113 R)
• M13: 15,207,072 km (0.11 R)
• M14: 17,321,189 km (0.027 R)
• M15: 18,343,841 km (0.114 R)
• M16: 18,763,911 km (0.118 R)
• M17: 19,406,135 km (0.066 R)
• M18: 20,733,966 km (0.029 R)
• M19: 21,113,346 km (0.114 R)
• M20: 22,998,877 km (0.08 R)
• M21: 32,167,581 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 70.8

Radius: 7.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 9.42 AU - 11.18 AU

Year: 21685 Days

Day: 18.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,686,966 km

• M1: 91,554 km (0.086 R)
• M2: 812,017 km (0.076 R)
• M3: 1,208,452 km (0.118 R)
• M4: 2,604,499 km (0.119 R)
• M5: 3,247,620 km (0.066 R)
• M6: 5,591,370 km (0.113 R)
• M7: 6,691,214 km (0.076 R)
• M8: 13,545,339 km (0.057 R)
• M9: 13,774,074 km (0.111 R)
• M10: 15,385,991 km (0.091 R)
• M11: 22,693,099 km (0.114 R)
• M12: 25,623,422 km (0.088 R)
• M13: 30,526,642 km (0.117 R)
• M14: 31,118,302 km (0.111 R)
• M15: 31,416,899 km (0.029 R)
• M16: 33,980,857 km (0.111 R)
• M17: 34,509,835 km (0.119 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: 267 - 11,067 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit