🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437

Radius: 8.3

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.13 AU - 1.47 AU

Year: 1042 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,108,558 km

• M1: 103,223 km (0.06 R)
• M2: 369,806 km (0.054 R)
• M3: 772,523 km (0.119 R)
• M4: 1,121,086 km (0.118 R)
• M5: 1,884,036 km (0.075 R)
• M6: 2,688,423 km (0.115 R)
• M7: 3,045,065 km (0.072 R)
• M8: 3,502,984 km (0.096 R)
• M9: 5,495,627 km (0.095 R)
• M10: 5,788,989 km (0.091 R)
• M11: 6,428,520 km (0.11 R)
• M12: 6,865,645 km (0.037 R)
• M13: 7,345,854 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.5

Radius: 11.7

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.26 AU - 3.3 AU

Year: 3258 Days

Day: 12 Hours

Environment

Temp: -201 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,108,558 km

• M1: 145,559 km (0.1 R)
• M2: 598,242 km (0.073 R)
• M3: 1,799,962 km (0.09 R)
• M4: 2,198,790 km (0.086 R)
• M5: 2,739,287 km (0.084 R)
• M6: 3,123,454 km (0.096 R)
• M7: 3,603,962 km (0.101 R)
• M8: 4,067,267 km (0.082 R)
• M9: 4,594,001 km (0.069 R)
• M10: 5,114,452 km (0.081 R)
• M11: 5,701,624 km (0.041 R)
• M12: 10,549,343 km (0.084 R)
• M13: 11,772,156 km (0.085 R)
• M14: 12,701,906 km (0.083 R)
• M15: 13,679,977 km (0.107 R)
• M16: 14,918,947 km (0.054 R)
• M17: 17,206,747 km (0.07 R)
• M18: 17,798,407 km (0.111 R)
• M19: 18,403,530 km (0.037 R)
• M20: 22,607,081 km (0.114 R)
• M21: 23,968,720 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445

Radius: 14

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.11 AU - 3.29 AU

Year: 4024 Days

Day: 10.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,108,558 km

• M1: 174,132 km (0.104 R)
• M2: 750,533 km (0.091 R)
• M3: 1,320,650 km (0.053 R)
• M4: 3,082,913 km (0.094 R)
• M5: 8,041,334 km (0.095 R)
• M6: 8,980,360 km (0.104 R)
• M7: 14,504,860 km (0.091 R)
• M8: 15,318,672 km (0.104 R)
• M9: 16,324,419 km (0.065 R)
• M10: 17,771,629 km (0.083 R)
• M11: 19,914,469 km (0.116 R)
• M12: 21,565,730 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.7

Radius: 12.9

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.32 AU - 4.52 AU

Year: 6532 Days

Day: 14.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,108,558 km

• M1: 160,668 km (0.07 R)
• M2: 709,543 km (0.083 R)
• M3: 1,201,720 km (0.114 R)
• M4: 1,951,504 km (0.108 R)
• M5: 2,639,954 km (0.095 R)
• M6: 3,610,844 km (0.115 R)
• M7: 4,238,108 km (0.089 R)
• M8: 5,917,793 km (0.118 R)
• M9: 7,680,205 km (0.111 R)
• M10: 9,357,048 km (0.119 R)
• M11: 10,544,107 km (0.04 R)
• M12: 11,877,024 km (0.1 R)
• M13: 13,949,104 km (0.116 R)
• M14: 15,325,105 km (0.087 R)
• M15: 17,525,241 km (0.098 R)
• M16: 21,743,452 km (0.083 R)
• M17: 23,666,234 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.5

Radius: 10.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.76 AU - 5.4 AU

Year: 6890 Days

Day: 11.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,108,558 km

• M1: 131,796 km (0.104 R)
• M2: 614,099 km (0.079 R)
• M3: 1,494,184 km (0.09 R)
• M4: 2,865,996 km (0.041 R)
• M5: 3,354,433 km (0.078 R)
• M6: 3,943,549 km (0.053 R)
• M7: 4,373,793 km (0.116 R)
• M8: 4,835,302 km (0.086 R)
• M9: 7,118,166 km (0.084 R)
• M10: 7,868,698 km (0.076 R)
• M11: 12,841,631 km (0.111 R)
• M12: 13,469,194 km (0.117 R)
• M13: 14,672,709 km (0.077 R)
• M14: 18,252,885 km (0.072 R)
• M15: 18,979,332 km (0.106 R)
• M16: 19,383,695 km (0.115 R)
• M17: 22,005,548 km (0.087 R)
• M18: 23,439,892 km (0.107 R)
• M19: 26,243,655 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863.7

Radius: 5.8

Gravity: 25.67 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.74 AU - 8.94 AU

Year: 13978 Days

Day: 16.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,108,558 km

• M1: 78,090 km (0.036 R)
• M2: 645,664 km (0.078 R)
• M3: 890,107 km (0.095 R)
• M4: 2,481,529 km (0.075 R)
• M5: 3,064,064 km (0.06 R)
• M6: 4,304,529 km (0.112 R)
• M7: 4,897,385 km (0.11 R)
• M8: 5,177,732 km (0.1 R)
• M9: 5,656,146 km (0.083 R)
• M10: 6,490,453 km (0.096 R)
• M11: 12,689,191 km (0.073 R)
• M12: 13,900,784 km (0.077 R)
• M13: 14,463,122 km (0.113 R)
• M14: 17,103,525 km (0.114 R)
• M15: 19,434,259 km (0.102 R)
• M16: 19,695,906 km (0.113 R)
• M17: 43,990,002 km (0.09 R)
• M18: 56,749,653 km (0.104 R)
• M19: 58,908,500 km (0.105 R)
• M20: 60,008,343 km (0.085 R)
• M21: 61,121,651 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 503.7

Radius: 3.9

Gravity: 33.12 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 7.39 AU - 8.11 AU

Year: 15166 Days

Day: 21.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,108,558 km

• M1: 48,619 km (0.078 R)
• M2: 244,892 km (0.099 R)
• M3: 375,790 km (0.058 R)
• M4: 599,887 km (0.104 R)
• M5: 1,528,292 km (0.077 R)
• M6: 1,900,791 km (0.12 R)
• M7: 3,727,829 km (0.114 R)
• M8: 5,530,334 km (0.098 R)
• M9: 6,558,221 km (0.077 R)
• M10: 6,679,695 km (0.088 R)
• M11: 6,802,814 km (0.052 R)
• M12: 9,033,467 km (0.087 R)
• M13: 14,113,362 km (0.105 R)
• M14: 14,521,017 km (0.105 R)
• M15: 18,388,720 km (0.11 R)
• M16: 19,038,872 km (0.12 R)
• M17: 19,203,729 km (0.106 R)
• M18: 20,993,069 km (0.09 R)
• M19: 34,475,727 km (0.075 R)
• M20: 41,230,669 km (0.1 R)
• M21: 41,368,598 km (0.098 R)
• M22: 50,059,786 km (0.047 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 17,417 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit