🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.8

Radius: 10.3

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.55 AU - 0.85 AU

Year: 384 Days

Day: 14.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,368,174 km

• M1: 128,205 km (0.074 R)
• M2: 461,958 km (0.109 R)
• M3: 1,061,397 km (0.046 R)
• M4: 1,450,651 km (0.074 R)
• M5: 1,970,653 km (0.082 R)
• M6: 2,551,242 km (0.097 R)
• M7: 3,212,315 km (0.098 R)
• M8: 3,676,816 km (0.057 R)
• M9: 4,042,434 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.8

Radius: 11.8

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.85 AU - 0.91 AU

Year: 542 Days

Day: 9 Hours

Environment

Temp: -146 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,368,174 km

• M1: 146,756 km (0.101 R)
• M2: 516,262 km (0.026 R)
• M3: 1,137,093 km (0.096 R)
• M4: 1,595,461 km (0.066 R)
• M5: 2,115,314 km (0.111 R)
• M6: 2,915,812 km (0.092 R)
• M7: 3,435,066 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.2

Radius: 13

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.93 AU - 1.43 AU

Year: 841 Days

Day: 14.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,368,174 km

• M1: 161,715 km (0.037 R)
• M2: 694,433 km (0.062 R)
• M3: 1,167,761 km (0.049 R)
• M4: 1,973,794 km (0.03 R)
• M5: 2,719,240 km (0.092 R)
• M6: 4,255,910 km (0.069 R)
• M7: 4,861,332 km (0.117 R)
• M8: 5,543,499 km (0.108 R)
• M9: 6,331,879 km (0.086 R)
• M10: 6,867,440 km (0.087 R)
• M11: 7,336,878 km (0.105 R)
• M12: 8,287,872 km (0.037 R)
• M13: 9,518,613 km (0.046 R)
• M14: 10,043,702 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.1

Radius: 9.8

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.63 AU - 2.67 AU

Year: 2068 Days

Day: 7.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,368,174 km

• M1: 121,922 km (0.076 R)
• M2: 481,556 km (0.115 R)
• M3: 802,593 km (0.046 R)
• M4: 1,953,599 km (0.086 R)
• M5: 2,287,202 km (0.066 R)
• M6: 3,786,322 km (0.076 R)
• M7: 4,494,967 km (0.087 R)
• M8: 5,164,567 km (0.068 R)
• M9: 5,831,923 km (0.097 R)
• M10: 7,156,014 km (0.096 R)
• M11: 9,739,121 km (0.086 R)
• M12: 11,628,242 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.3

Radius: 9.3

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.04 AU - 4.2 AU

Year: 5486 Days

Day: 6.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,368,174 km

• M1: 115,639 km (0.094 R)
• M2: 423,512 km (0.113 R)
• M3: 980,764 km (0.111 R)
• M4: 2,156,902 km (0.079 R)
• M5: 2,691,714 km (0.108 R)
• M6: 3,274,697 km (0.077 R)
• M7: 4,338,637 km (0.099 R)
• M8: 5,590,772 km (0.043 R)
• M9: 9,015,366 km (0.067 R)
• M10: 10,524,509 km (0.117 R)
• M11: 11,120,657 km (0.071 R)
• M12: 15,022,169 km (0.107 R)
• M13: 15,943,393 km (0.095 R)
• M14: 17,249,083 km (0.111 R)
• M15: 18,319,606 km (0.064 R)
• M16: 20,072,145 km (0.059 R)
• M17: 22,625,332 km (0.063 R)
• M18: 23,762,575 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.9

Radius: 3.7

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 8.38 AU - 9 AU

Year: 16805 Days

Day: 16.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,368,174 km

• M1: 46,076 km (0.101 R)
• M2: 482,453 km (0.06 R)
• M3: 850,613 km (0.042 R)
• M4: 6,389,624 km (0.11 R)
• M5: 6,930,421 km (0.092 R)
• M6: 9,161,673 km (0.027 R)
• M7: 9,889,616 km (0.091 R)
• M8: 14,009,093 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 538.9

Radius: 5.1

Gravity: 20.72 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 8.83 AU - 9.89 AU

Year: 18786 Days

Day: 20.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 66.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,368,174 km

• M1: 63,429 km (0.098 R)
• M2: 400,025 km (0.091 R)
• M3: 780,153 km (0.087 R)
• M4: 1,065,436 km (0.062 R)
• M5: 1,330,224 km (0.088 R)
• M6: 1,540,858 km (0.119 R)
• M7: 2,207,466 km (0.083 R)
• M8: 2,998,839 km (0.112 R)
• M9: 3,282,776 km (0.073 R)
• M10: 5,718,827 km (0.086 R)
• M11: 6,278,772 km (0.081 R)
• M12: 6,529,498 km (0.073 R)
• M13: 7,006,715 km (0.069 R)
• M14: 7,981,794 km (0.029 R)
• M15: 9,970,548 km (0.096 R)
• M16: 14,601,201 km (0.111 R)
• M17: 16,416,571 km (0.049 R)
• M18: 18,461,873 km (0.057 R)
• M19: 18,890,322 km (0.103 R)
• M20: 22,269,887 km (0.09 R)
• M21: 24,459,252 km (0.1 R)
• M22: 52,987,267 km (0.04 R)
• M23: 54,026,074 km (0.092 R)
• M24: 56,862,450 km (0.074 R)
• M25: 64,777,224 km (0.056 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 12,288 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit