🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.1

Radius: 13.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.45 AU - 0.63 AU

Year: 274 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,336,269 km

• M1: 171,738 km (0.049 R)
• M2: 706,401 km (0.078 R)
• M3: 1,204,562 km (0.076 R)
• M4: 1,769,593 km (0.115 R)
• M5: 2,246,960 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.2

Radius: 12.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.64 AU - 0.66 AU

Year: 362 Days

Day: 14.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,336,269 km

• M1: 159,172 km (0.113 R)
• M2: 653,294 km (0.097 R)
• M3: 1,473,689 km (0.065 R)
• M4: 2,017,477 km (0.119 R)
• M5: 2,511,599 km (0.103 R)
• M6: 3,045,214 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.9

Radius: 10.4

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.97 AU - 1.33 AU

Year: 851 Days

Day: 13.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,336,269 km

• M1: 129,402 km (0.108 R)
• M2: 471,233 km (0.04 R)
• M3: 864,975 km (0.109 R)
• M4: 1,233,285 km (0.099 R)
• M5: 1,737,280 km (0.092 R)
• M6: 2,211,206 km (0.114 R)
• M7: 2,677,503 km (0.085 R)
• M8: 3,278,587 km (0.109 R)
• M9: 3,719,153 km (0.064 R)
• M10: 4,396,532 km (0.112 R)
• M11: 5,414,246 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.6

Radius: 13.8

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.38 AU - 1.56 AU

Year: 1230 Days

Day: 11.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,336,269 km

• M1: 171,589 km (0.115 R)
• M2: 604,375 km (0.072 R)
• M3: 1,199,326 km (0.078 R)
• M4: 1,697,786 km (0.116 R)
• M5: 2,488,112 km (0.03 R)
• M6: 3,217,401 km (0.084 R)
• M7: 4,704,105 km (0.112 R)
• M8: 6,052,431 km (0.075 R)
• M9: 7,465,083 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.3

Radius: 10.4

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.37 AU - 1.91 AU

Year: 1450 Days

Day: 10.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,336,269 km

• M1: 130,001 km (0.08 R)
• M2: 596,746 km (0.093 R)
• M3: 984,952 km (0.094 R)
• M4: 1,427,463 km (0.079 R)
• M5: 2,137,903 km (0.098 R)
• M6: 2,709,367 km (0.101 R)
• M7: 3,175,664 km (0.078 R)
• M8: 3,781,086 km (0.065 R)
• M9: 4,987,743 km (0.117 R)
• M10: 8,380,323 km (0.105 R)
• M11: 8,805,929 km (0.1 R)
• M12: 9,471,490 km (0.039 R)
• M13: 11,191,118 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.4

Radius: 12.3

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.52 AU - 2.94 AU

Year: 3114 Days

Day: 9.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,336,269 km

• M1: 153,039 km (0.093 R)
• M2: 824,434 km (0.052 R)
• M3: 1,547,291 km (0.107 R)
• M4: 4,382,619 km (0.116 R)
• M5: 4,838,145 km (0.108 R)
• M6: 5,915,549 km (0.109 R)
• M7: 13,194,831 km (0.087 R)
• M8: 14,107,229 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.4

Radius: 10.7

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.77 AU - 5.45 AU

Year: 7973 Days

Day: 9.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,336,269 km

• M1: 144,512 km (0.093 R)
• M2: 533,765 km (0.054 R)
• M3: 910,303 km (0.064 R)
• M4: 1,762,413 km (0.116 R)
• M5: 2,108,732 km (0.097 R)
• M6: 2,822,613 km (0.04 R)
• M7: 9,041,396 km (0.112 R)
• M8: 9,926,417 km (0.107 R)
• M9: 11,166,434 km (0.105 R)
• M10: 15,451,515 km (0.088 R)
• M11: 17,692,641 km (0.092 R)
• M12: 19,013,590 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 106.6

Radius: 3.8

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 5.65 AU - 6.03 AU

Year: 9742 Days

Day: 23.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,336,269 km

• M1: 129,253 km (0.091 R)
• M2: 471,532 km (0.077 R)
• M3: 723,306 km (0.119 R)
• M4: 868,116 km (0.112 R)
• M5: 2,723,429 km (0.108 R)
• M6: 5,214,683 km (0.12 R)
• M7: 5,564,442 km (0.086 R)
• M8: 5,787,343 km (0.1 R)
• M9: 6,162,235 km (0.118 R)
• M10: 10,504,164 km (0.047 R)
• M11: 12,801,987 km (0.109 R)
• M12: 12,995,268 km (0.073 R)
• M13: 14,929,419 km (0.082 R)
• M14: 16,244,982 km (0.054 R)
• M15: 21,186,200 km (0.115 R)
• M16: 22,914,355 km (0.043 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 17,974 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit