🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.2

Radius: 11

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.61 AU - 0.75 AU

Year: 374 Days

Day: 13.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,404,840 km

• M1: 136,882 km (0.093 R)
• M2: 513,869 km (0.088 R)
• M3: 874,250 km (0.107 R)
• M4: 1,220,270 km (0.11 R)
• M5: 1,892,563 km (0.099 R)
• M6: 2,535,834 km (0.08 R)
• M7: 3,056,135 km (0.106 R)
• M8: 3,622,662 km (0.05 R)
• M9: 4,325,473 km (0.068 R)
• M10: 4,731,481 km (0.115 R)
• M11: 5,396,294 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.2

Radius: 14.1

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.32 AU - 1.38 AU

Year: 1046 Days

Day: 12.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 38,404,840 km

• M1: 175,329 km (0.097 R)
• M2: 724,054 km (0.042 R)
• M3: 1,765,255 km (0.069 R)
• M4: 2,630,679 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382

Radius: 8.6

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.65 AU - 2.85 AU

Year: 3041 Days

Day: 12.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,404,840 km

• M1: 107,112 km (0.102 R)
• M2: 436,975 km (0.065 R)
• M3: 727,046 km (0.109 R)
• M4: 1,005,298 km (0.119 R)
• M5: 2,142,840 km (0.097 R)
• M6: 2,543,463 km (0.084 R)
• M7: 3,861,570 km (0.105 R)
• M8: 4,605,221 km (0.063 R)
• M9: 5,000,010 km (0.067 R)
• M10: 5,275,569 km (0.037 R)
• M11: 6,781,870 km (0.112 R)
• M12: 7,769,964 km (0.108 R)
• M13: 8,046,869 km (0.034 R)
• M14: 9,921,331 km (0.036 R)
• M15: 12,234,114 km (0.064 R)
• M16: 14,326,240 km (0.108 R)
• M17: 14,837,416 km (0.072 R)
• M18: 17,159,325 km (0.095 R)
• M19: 17,841,940 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.1

Radius: 14.5

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.65 AU - 3.81 AU

Year: 3871 Days

Day: 12.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,404,840 km

• M1: 180,415 km (0.082 R)
• M2: 808,128 km (0.073 R)
• M3: 1,406,519 km (0.085 R)
• M4: 2,243,220 km (0.104 R)
• M5: 2,866,146 km (0.075 R)
• M6: 3,545,170 km (0.103 R)
• M7: 4,242,147 km (0.115 R)
• M8: 7,427,534 km (0.094 R)
• M9: 8,190,334 km (0.106 R)
• M10: 9,413,296 km (0.075 R)
• M11: 9,872,861 km (0.107 R)
• M12: 10,837,468 km (0.059 R)
• M13: 11,688,530 km (0.093 R)
• M14: 12,401,065 km (0.115 R)
• M15: 13,864,282 km (0.105 R)
• M16: 14,816,323 km (0.113 R)
• M17: 16,243,636 km (0.064 R)
• M18: 20,881,918 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.5

Radius: 11.8

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.68 AU - 5.02 AU

Year: 7123 Days

Day: 6.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 38,404,840 km

• M1: 146,905 km (0.078 R)
• M2: 787,932 km (0.08 R)
• M3: 2,189,066 km (0.081 R)
• M4: 2,924,489 km (0.116 R)
• M5: 5,944,122 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.8

Radius: 12.5

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 4.04 AU - 6 AU

Year: 7500 Days

Day: 10.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,404,840 km

• M1: 156,180 km (0.08 R)
• M2: 557,551 km (0.11 R)
• M3: 1,469,949 km (0.096 R)
• M4: 1,879,099 km (0.095 R)
• M5: 3,711,074 km (0.097 R)
• M6: 4,431,837 km (0.054 R)
• M7: 6,523,963 km (0.113 R)
• M8: 13,098,191 km (0.099 R)
• M9: 15,559,375 km (0.092 R)
• M10: 20,545,622 km (0.112 R)
• M11: 24,016,143 km (0.119 R)
• M12: 25,542,340 km (0.102 R)
• M13: 26,952,450 km (0.077 R)
• M14: 27,859,611 km (0.101 R)
• M15: 28,506,772 km (0.078 R)
• M16: 29,448,640 km (0.037 R)
• M17: 32,704,189 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.3

Radius: 6.5

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.22 AU - 7.16 AU

Year: 10270 Days

Day: 22.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,404,840 km

• M1: 86,468 km (0.106 R)
• M2: 319,691 km (0.109 R)
• M3: 620,981 km (0.08 R)
• M4: 894,446 km (0.11 R)
• M5: 1,166,415 km (0.096 R)
• M6: 2,259,825 km (0.054 R)
• M7: 4,446,797 km (0.085 R)
• M8: 5,447,008 km (0.106 R)
• M9: 5,838,207 km (0.053 R)
• M10: 6,913,516 km (0.063 R)
• M11: 7,403,599 km (0.094 R)
• M12: 7,689,181 km (0.086 R)
• M13: 9,785,646 km (0.05 R)
• M14: 10,014,381 km (0.091 R)
• M15: 11,588,599 km (0.08 R)
• M16: 12,235,759 km (0.077 R)
• M17: 13,135,740 km (0.069 R)
• M18: 13,367,467 km (0.117 R)
• M19: 17,737,221 km (0.118 R)
• M20: 19,783,720 km (0.091 R)
• M21: 21,147,753 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 141.1

Radius: 3.6

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.22 AU - 10.28 AU

Year: 15802 Days

Day: 23.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,404,840 km

• M1: 71,807 km (0.111 R)
• M2: 1,176,587 km (0.099 R)
• M3: 1,512,883 km (0.072 R)
• M4: 1,647,521 km (0.114 R)
• M5: 2,555,431 km (0.105 R)
• M6: 3,031,302 km (0.053 R)
• M7: 3,540,383 km (0.08 R)
• M8: 4,129,948 km (0.1 R)
• M9: 8,125,109 km (0.104 R)
• M10: 9,591,019 km (0.094 R)
• M11: 19,174,109 km (0.073 R)
• M12: 25,919,626 km (0.109 R)
• M13: 27,178,642 km (0.103 R)
• M14: 30,110,461 km (0.096 R)
• M15: 32,830,001 km (0.099 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 15,733 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit