🌌 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: 195.1

Radius: 9.3

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.99 AU - 1.61 AU

Year: 942 Days

Day: 12.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,530,290 km

• M1: 117,285 km (0.06 R)
• M2: 414,984 km (0.088 R)
• M3: 898,485 km (0.087 R)
• M4: 1,837,211 km (0.095 R)
• M5: 2,325,648 km (0.067 R)
• M6: 3,044,466 km (0.083 R)
• M7: 3,425,043 km (0.052 R)
• M8: 3,770,764 km (0.109 R)
• M9: 4,653,691 km (0.108 R)
• M10: 5,259,412 km (0.103 R)
• M11: 5,756,227 km (0.032 R)
• M12: 6,397,403 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138

Radius: 13

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.54 AU - 2.4 AU

Year: 1758 Days

Day: 6.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,530,290 km

• M1: 163,361 km (0.075 R)
• M2: 816,804 km (0.057 R)
• M3: 1,256,772 km (0.045 R)
• M4: 1,815,969 km (0.083 R)
• M5: 2,367,685 km (0.098 R)
• M6: 2,944,086 km (0.11 R)
• M7: 3,976,760 km (0.081 R)
• M8: 6,749,856 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.1

Radius: 9.9

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.68 AU - 2.6 AU

Year: 1990 Days

Day: 9.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,530,290 km

• M1: 123,119 km (0.102 R)
• M2: 469,139 km (0.114 R)
• M3: 843,433 km (0.083 R)
• M4: 1,261,260 km (0.114 R)
• M5: 1,871,469 km (0.119 R)
• M6: 2,349,285 km (0.113 R)
• M7: 3,992,917 km (0.109 R)
• M8: 4,724,301 km (0.077 R)
• M9: 5,259,861 km (0.026 R)
• M10: 5,885,330 km (0.113 R)
• M11: 7,313,242 km (0.108 R)
• M12: 8,248,677 km (0.107 R)
• M13: 10,503,267 km (0.048 R)
• M14: 10,991,554 km (0.108 R)
• M15: 11,812,248 km (0.114 R)
• M16: 13,012,023 km (0.119 R)
• M17: 13,885,525 km (0.073 R)
• M18: 15,944,291 km (0.088 R)
• M19: 16,741,049 km (0.068 R)
• M20: 17,149,302 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.8

Radius: 11

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.06 AU - 2.56 AU

Year: 2232 Days

Day: 12.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 55.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,530,290 km

• M1: 147,952 km (0.105 R)
• M2: 504,594 km (0.117 R)
• M3: 859,739 km (0.095 R)
• M4: 1,426,715 km (0.077 R)
• M5: 1,927,269 km (0.095 R)
• M6: 2,332,530 km (0.086 R)
• M7: 2,912,371 km (0.097 R)
• M8: 3,690,430 km (0.108 R)
• M9: 4,147,900 km (0.096 R)
• M10: 4,958,721 km (0.081 R)
• M11: 5,993,788 km (0.07 R)
• M12: 6,733,550 km (0.085 R)
• M13: 8,897,782 km (0.069 R)
• M14: 9,387,416 km (0.091 R)
• M15: 10,278,720 km (0.081 R)
• M16: 10,672,462 km (0.096 R)
• M17: 11,836,483 km (0.069 R)
• M18: 12,469,581 km (0.057 R)
• M19: 13,041,793 km (0.108 R)
• M20: 13,717,227 km (0.09 R)
• M21: 15,978,698 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.7

Radius: 12.6

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.46 AU - 3.38 AU

Year: 3173 Days

Day: 12.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,530,290 km

• M1: 162,014 km (0.084 R)
• M2: 775,515 km (0.094 R)
• M3: 1,678,638 km (0.115 R)
• M4: 2,103,795 km (0.05 R)
• M5: 2,887,538 km (0.065 R)
• M6: 3,938,912 km (0.058 R)
• M7: 4,407,752 km (0.064 R)
• M8: 5,181,023 km (0.07 R)
• M9: 7,337,925 km (0.1 R)
• M10: 8,185,696 km (0.09 R)
• M11: 8,881,626 km (0.103 R)
• M12: 11,207,723 km (0.114 R)
• M13: 13,153,692 km (0.079 R)
• M14: 13,962,867 km (0.091 R)
• M15: 15,419,352 km (0.035 R)
• M16: 21,415,234 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.9

Radius: 12.2

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.99 AU - 6.15 AU

Year: 7258 Days

Day: 11.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,530,290 km

• M1: 152,141 km (0.034 R)
• M2: 841,937 km (0.106 R)
• M3: 1,316,611 km (0.047 R)
• M4: 1,739,524 km (0.07 R)
• M5: 2,146,580 km (0.077 R)
• M6: 2,565,753 km (0.115 R)
• M7: 3,059,426 km (0.068 R)
• M8: 3,660,062 km (0.03 R)
• M9: 5,153,946 km (0.104 R)
• M10: 5,976,285 km (0.109 R)
• M11: 9,813,022 km (0.086 R)
• M12: 16,846,515 km (0.079 R)
• M13: 17,413,491 km (0.052 R)
• M14: 18,386,625 km (0.073 R)
• M15: 20,798,293 km (0.048 R)
• M16: 28,042,420 km (0.045 R)
• M17: 30,478,173 km (0.054 R)
• M18: 32,274,544 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.4

Radius: 14.6

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.34 AU - 5.9 AU

Year: 7366 Days

Day: 10.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,530,290 km

• M1: 186,249 km (0.041 R)
• M2: 676,930 km (0.113 R)
• M3: 1,367,325 km (0.061 R)
• M4: 2,475,246 km (0.108 R)
• M5: 3,310,750 km (0.118 R)
• M6: 5,266,144 km (0.111 R)
• M7: 7,164,541 km (0.045 R)
• M8: 8,906,459 km (0.079 R)
• M9: 12,487,533 km (0.046 R)
• M10: 14,996,439 km (0.073 R)
• M11: 15,881,310 km (0.119 R)
• M12: 22,261,061 km (0.107 R)
• M13: 24,603,913 km (0.104 R)
• M14: 27,384,937 km (0.116 R)
• M15: 29,189,387 km (0.101 R)
• M16: 30,269,783 km (0.117 R)
• M17: 31,785,658 km (0.117 R)
• M18: 34,750,089 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 74.7

Radius: 6.8

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 8.33 AU - 13.89 AU

Year: 23545 Days

Day: 21.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,530,290 km

• M1: 173,384 km (0.095 R)
• M2: 693,985 km (0.075 R)
• M3: 907,461 km (0.065 R)
• M4: 1,154,896 km (0.104 R)
• M5: 2,083,898 km (0.111 R)
• M6: 9,817,510 km (0.096 R)
• M7: 12,358,430 km (0.102 R)
• M8: 14,806,599 km (0.039 R)
• M9: 15,754,002 km (0.116 R)
• M10: 17,560,396 km (0.026 R)
• M11: 22,712,996 km (0.113 R)
• M12: 24,314,740 km (0.106 R)
• M13: 30,663,824 km (0.073 R)
• M14: 34,761,758 km (0.072 R)
• M15: 35,201,576 km (0.114 R)
• M16: 36,656,864 km (0.092 R)
• M17: 37,919,171 km (0.071 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 11,578 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit