🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.52 AU - 0.74 AU

Year: 328 Days

Day: 16.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,162,749 km

• M1: 39,943 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.5

Radius: 13.1

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.78 AU - 1 AU

Year: 551 Days

Day: 11.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,162,749 km

• M1: 162,912 km (0.1 R)
• M2: 671,246 km (0.079 R)
• M3: 1,354,459 km (0.045 R)
• M4: 1,831,527 km (0.085 R)
• M5: 2,300,666 km (0.104 R)
• M6: 3,115,076 km (0.081 R)
• M7: 3,672,179 km (0.077 R)
• M8: 4,308,419 km (0.061 R)
• M9: 4,815,256 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.6

Radius: 8.8

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.7 AU - 1.84 AU

Year: 1545 Days

Day: 8.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,162,749 km

• M1: 109,506 km (0.115 R)
• M2: 468,690 km (0.11 R)
• M3: 954,883 km (0.05 R)
• M4: 1,373,907 km (0.118 R)
• M5: 1,659,340 km (0.108 R)
• M6: 2,146,729 km (0.092 R)
• M7: 3,484,882 km (0.079 R)
• M8: 4,110,201 km (0.063 R)
• M9: 5,844,490 km (0.116 R)
• M10: 6,997,740 km (0.087 R)
• M11: 7,562,172 km (0.079 R)
• M12: 9,873,759 km (0.119 R)
• M13: 11,019,379 km (0.098 R)
• M14: 11,362,407 km (0.087 R)
• M15: 12,251,467 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.7

Radius: 14.4

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.1 AU - 2.58 AU

Year: 2348 Days

Day: 7.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,162,749 km

• M1: 179,069 km (0.119 R)
• M2: 746,643 km (0.103 R)
• M3: 1,414,597 km (0.097 R)
• M4: 1,864,887 km (0.087 R)
• M5: 2,440,988 km (0.088 R)
• M6: 3,395,273 km (0.09 R)
• M7: 4,969,940 km (0.116 R)
• M8: 6,757,336 km (0.092 R)
• M9: 8,464,547 km (0.102 R)
• M10: 11,896,920 km (0.071 R)
• M11: 15,300,870 km (0.084 R)
• M12: 16,426,893 km (0.116 R)
• M13: 17,994,829 km (0.029 R)
• M14: 18,959,137 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.7

Radius: 10.7

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 5.05 AU - 5.31 AU

Year: 7734 Days

Day: 12.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,162,749 km

• M1: 133,142 km (0.081 R)
• M2: 726,298 km (0.109 R)
• M3: 1,413,849 km (0.054 R)
• M4: 2,003,564 km (0.1 R)
• M5: 2,530,598 km (0.092 R)
• M6: 5,586,583 km (0.05 R)
• M7: 5,933,201 km (0.099 R)
• M8: 6,600,557 km (0.062 R)
• M9: 6,952,561 km (0.07 R)
• M10: 9,292,421 km (0.114 R)
• M11: 10,521,218 km (0.112 R)
• M12: 17,382,824 km (0.047 R)
• M13: 21,689,447 km (0.053 R)
• M14: 29,978,964 km (0.039 R)
• M15: 31,937,649 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.7

Radius: 11.3

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 5.37 AU - 5.75 AU

Year: 8600 Days

Day: 12.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,162,749 km

• M1: 140,622 km (0.029 R)
• M2: 684,261 km (0.115 R)
• M3: 1,108,819 km (0.056 R)
• M4: 1,957,039 km (0.093 R)
• M5: 2,336,719 km (0.078 R)
• M6: 3,336,332 km (0.093 R)
• M7: 4,148,050 km (0.056 R)
• M8: 6,326,644 km (0.09 R)
• M9: 10,726,317 km (0.096 R)
• M10: 12,266,128 km (0.067 R)
• M11: 12,706,544 km (0.103 R)
• M12: 13,248,836 km (0.11 R)
• M13: 16,038,687 km (0.094 R)
• M14: 16,459,356 km (0.114 R)
• M15: 17,432,939 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.6

Radius: 10.6

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.44 AU - 5.86 AU

Year: 8810 Days

Day: 12 Hours

Environment

Temp: -209 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,162,749 km

• M1: 136,284 km (0.086 R)
• M2: 638,484 km (0.096 R)
• M3: 1,118,693 km (0.089 R)
• M4: 1,962,724 km (0.049 R)
• M5: 2,483,923 km (0.043 R)
• M6: 7,063,263 km (0.087 R)
• M7: 8,114,039 km (0.096 R)
• M8: 9,706,209 km (0.049 R)
• M9: 10,895,213 km (0.086 R)
• M10: 11,441,395 km (0.082 R)
• M11: 13,874,455 km (0.097 R)
• M12: 16,420,012 km (0.058 R)
• M13: 18,948,365 km (0.106 R)
• M14: 20,799,190 km (0.114 R)
• M15: 22,242,660 km (0.083 R)
• M16: 25,044,778 km (0.072 R)
• M17: 27,973,007 km (0.105 R)
• M18: 32,894,477 km (0.117 R)
• M19: 38,239,460 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.9

Radius: 5.5

Gravity: 10.81 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.43 AU - 6.51 AU

Year: 10796 Days

Day: 15.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 49,162,749 km

• M1: 68,366 km (0.109 R)
• M2: 255,064 km (0.098 R)
• M3: 510,727 km (0.119 R)
• M4: 728,542 km (0.082 R)
• M5: 998,715 km (0.081 R)
• M6: 1,206,956 km (0.061 R)
• M7: 1,814,173 km (0.104 R)
• M8: 2,475,246 km (0.091 R)
• M9: 3,110,589 km (0.092 R)
• M10: 3,375,078 km (0.112 R)
• M11: 3,726,483 km (0.083 R)
• M12: 4,102,123 km (0.076 R)
• M13: 6,979,189 km (0.079 R)
• M14: 10,049,387 km (0.072 R)
• M15: 10,432,656 km (0.119 R)
• M16: 11,640,958 km (0.113 R)
• M17: 11,903,951 km (0.11 R)
• M18: 12,661,515 km (0.042 R)
• M19: 12,883,668 km (0.096 R)
• M20: 14,512,938 km (0.102 R)
• M21: 14,940,788 km (0.067 R)
• M22: 19,544,214 km (0.081 R)
• M23: 24,150,183 km (0.084 R)
• M24: 26,885,580 km (0.112 R)
• M25: 27,160,690 km (0.09 R)
• M26: 29,333,450 km (0.111 R)
• M27: 30,611,315 km (0.064 R)
• M28: 31,619,305 km (0.067 R)
• M29: 32,545,166 km (0.093 R)
• M30: 34,021,249 km (0.059 R)
• M31: 35,983,673 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.1

Radius: 5.5

Gravity: 19.84 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.54 AU - 7.64 AU

Year: 11098 Days

Day: 15.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,162,749 km

• M1: 68,516 km (0.11 R)
• M2: 374,294 km (0.084 R)
• M3: 817,253 km (0.041 R)
• M4: 992,432 km (0.099 R)
• M5: 1,169,407 km (0.105 R)
• M6: 1,475,035 km (0.091 R)
• M7: 1,998,029 km (0.056 R)
• M8: 2,302,162 km (0.086 R)
• M9: 2,958,298 km (0.114 R)
• M10: 4,785,037 km (0.11 R)
• M11: 5,133,002 km (0.11 R)
• M12: 6,095,365 km (0.115 R)
• M13: 8,059,585 km (0.107 R)
• M14: 8,461,256 km (0.118 R)
• M15: 9,597,900 km (0.098 R)
• M16: 11,321,866 km (0.059 R)
• M17: 11,599,968 km (0.109 R)
• M18: 13,059,146 km (0.036 R)
• M19: 13,550,874 km (0.063 R)
• M20: 14,966,818 km (0.092 R)
• M21: 15,167,279 km (0.043 R)
• M22: 15,369,386 km (0.085 R)
• M23: 17,565,632 km (0.055 R)
• M24: 18,240,468 km (0.105 R)
• M25: 22,656,747 km (0.078 R)
• M26: 26,939,884 km (0.047 R)
• M27: 28,959,455 km (0.06 R)
• M28: 29,479,756 km (0.063 R)
• M29: 30,112,107 km (0.047 R)
• M30: 31,842,954 km (0.045 R)
• M31: 38,672,845 km (0.093 R)
• M32: 46,134,338 km (0.045 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 18,146 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit