🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.68 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.5

Radius: 13.4

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.23 AU - 1.49 AU

Year: 1058 Days

Day: 8.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 131.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,006,424 km

• M1: 167,998 km (0.037 R)
• M2: 592,258 km (0.084 R)
• M3: 1,041,500 km (0.034 R)
• M4: 2,405,534 km (0.101 R)
• M5: 2,917,906 km (0.12 R)
• M6: 3,654,078 km (0.079 R)
• M7: 4,944,808 km (0.102 R)
• M8: 5,388,067 km (0.067 R)
• M9: 6,815,978 km (0.095 R)
• M10: 7,389,387 km (0.114 R)
• M11: 8,285,328 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.8

Radius: 14.6

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.56 AU - 1.78 AU

Year: 1439 Days

Day: 5.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,006,424 km

• M1: 181,612 km (0.118 R)
• M2: 847,173 km (0.105 R)
• M3: 1,346,231 km (0.112 R)
• M4: 1,897,649 km (0.118 R)
• M5: 2,639,804 km (0.094 R)
• M6: 3,131,981 km (0.095 R)
• M7: 3,719,452 km (0.12 R)
• M8: 4,342,377 km (0.07 R)
• M9: 4,951,839 km (0.081 R)
• M10: 5,528,838 km (0.044 R)
• M11: 6,008,449 km (0.091 R)
• M12: 6,540,868 km (0.081 R)
• M13: 8,300,887 km (0.077 R)
• M14: 9,118,289 km (0.084 R)
• M15: 10,461,678 km (0.079 R)
• M16: 11,199,046 km (0.094 R)
• M17: 12,777,902 km (0.119 R)
• M18: 14,035,272 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.2

Radius: 11.7

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.86 AU - 2.02 AU

Year: 1802 Days

Day: 12.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,006,424 km

• M1: 145,559 km (0.094 R)
• M2: 599,139 km (0.032 R)
• M3: 992,881 km (0.064 R)
• M4: 1,697,337 km (0.03 R)
• M5: 2,607,940 km (0.111 R)
• M6: 3,924,850 km (0.065 R)
• M7: 4,351,353 km (0.103 R)
• M8: 5,526,594 km (0.071 R)
• M9: 6,335,470 km (0.101 R)
• M10: 9,076,701 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.8

Radius: 9

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.6 AU - 3.22 AU

Year: 3310 Days

Day: 5.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,006,424 km

• M1: 111,899 km (0.042 R)
• M2: 397,930 km (0.104 R)
• M3: 688,898 km (0.053 R)
• M4: 1,073,664 km (0.102 R)
• M5: 1,581,549 km (0.073 R)
• M6: 2,037,074 km (0.042 R)
• M7: 2,487,813 km (0.032 R)
• M8: 3,381,510 km (0.103 R)
• M9: 4,306,025 km (0.087 R)
• M10: 5,010,182 km (0.118 R)
• M11: 5,587,181 km (0.093 R)
• M12: 6,976,048 km (0.102 R)
• M13: 8,260,046 km (0.076 R)
• M14: 10,185,969 km (0.119 R)
• M15: 11,217,746 km (0.071 R)
• M16: 13,248,387 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.6

Radius: 9.6

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.15 AU - 3.69 AU

Year: 4218 Days

Day: 7.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 81,006,424 km

• M1: 119,379 km (0.089 R)
• M2: 553,063 km (0.109 R)
• M3: 1,137,243 km (0.12 R)
• M4: 2,417,352 km (0.105 R)
• M5: 5,368,469 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.7

Radius: 10.4

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.54 AU - 5.6 AU

Year: 6515 Days

Day: 12.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,006,424 km

• M1: 129,402 km (0.089 R)
• M2: 603,328 km (0.076 R)
• M3: 1,150,408 km (0.074 R)
• M4: 1,477,877 km (0.097 R)
• M5: 1,924,277 km (0.12 R)
• M6: 2,459,688 km (0.105 R)
• M7: 2,827,101 km (0.118 R)
• M8: 3,231,015 km (0.09 R)
• M9: 3,829,855 km (0.071 R)
• M10: 5,027,386 km (0.055 R)
• M11: 5,802,453 km (0.047 R)
• M12: 6,655,310 km (0.077 R)
• M13: 7,060,272 km (0.07 R)
• M14: 8,374,788 km (0.106 R)
• M15: 10,918,101 km (0.115 R)
• M16: 11,244,973 km (0.061 R)
• M17: 13,346,075 km (0.06 R)
• M18: 17,791,226 km (0.08 R)
• M19: 21,418,526 km (0.057 R)
• M20: 23,135,909 km (0.119 R)
• M21: 27,525,410 km (0.106 R)
• M22: 30,189,150 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.6

Radius: 12.7

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.34 AU - 5.24 AU

Year: 6991 Days

Day: 7.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,006,424 km

• M1: 167,998 km (0.06 R)
• M2: 585,526 km (0.051 R)
• M3: 1,430,604 km (0.072 R)
• M4: 1,938,190 km (0.111 R)
• M5: 2,507,111 km (0.111 R)
• M6: 3,151,878 km (0.102 R)
• M7: 3,616,229 km (0.099 R)
• M8: 4,250,823 km (0.115 R)
• M9: 4,729,387 km (0.088 R)
• M10: 5,769,391 km (0.095 R)
• M11: 8,568,068 km (0.11 R)
• M12: 15,790,205 km (0.092 R)
• M13: 19,714,307 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.4

Radius: 3.4

Gravity: 59.2 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 10.18 AU - 10.38 AU

Year: 21980 Days

Day: 19.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,006,424 km

• M1: 42,336 km (0.118 R)
• M2: 412,591 km (0.097 R)
• M3: 580,290 km (0.116 R)
• M4: 709,692 km (0.044 R)
• M5: 1,532,032 km (0.104 R)
• M6: 2,184,877 km (0.044 R)
• M7: 2,847,296 km (0.11 R)
• M8: 3,425,193 km (0.099 R)
• M9: 3,573,444 km (0.044 R)
• M10: 4,698,720 km (0.089 R)
• M11: 5,032,024 km (0.105 R)
• M12: 7,128,937 km (0.101 R)
• M13: 7,668,836 km (0.087 R)
• M14: 12,933,334 km (0.115 R)
• M15: 13,660,230 km (0.099 R)
• M16: 14,957,543 km (0.093 R)
• M17: 17,269,578 km (0.088 R)
• M18: 20,383,607 km (0.112 R)
• M19: 20,577,786 km (0.068 R)
• M20: 20,871,147 km (0.026 R)
• M21: 25,164,606 km (0.08 R)
• M22: 26,639,790 km (0.108 R)
• M23: 29,265,831 km (0.061 R)
• M24: 32,190,320 km (0.095 R)
• M25: 33,117,677 km (0.115 R)
• M26: 35,303,751 km (0.056 R)
• M27: 36,147,782 km (0.054 R)
• M28: 37,584,071 km (0.058 R)
• M29: 39,357,405 km (0.073 R)
• M30: 40,570,195 km (0.078 R)
• M31: 42,120,776 km (0.094 R)
• M32: 43,871,670 km (0.105 R)
• M33: 49,414,271 km (0.105 R)
• M34: 52,443,478 km (0.091 R)
• M35: 53,173,815 km (0.113 R)
• M36: 59,855,604 km (0.075 R)
• M37: 64,538,167 km (0.078 R)
• M38: 70,560,678 km (0.115 R)
• M39: 77,889,627 km (0.207 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: 181 - 13,465 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit