🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.5

Radius: 11.1

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.53 AU - 0.77 AU

Year: 368 Days

Day: 10.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 13,201,975 km

• M1: 138,079 km (0.034 R)
• M2: 687,701 km (0.079 R)
• M3: 1,322,744 km (0.117 R)
• M4: 1,950,158 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.4

Radius: 8.2

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.94 AU - 1 AU

Year: 672 Days

Day: 6.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 13,201,975 km

• M1: 102,475 km (0.081 R)
• M2: 420,968 km (0.044 R)
• M3: 688,150 km (0.115 R)
• M4: 1,146,368 km (0.066 R)
• M5: 1,519,466 km (0.113 R)
• M6: 1,856,659 km (0.052 R)
• M7: 2,167,075 km (0.119 R)
• M8: 2,568,296 km (0.047 R)
• M9: 3,699,406 km (0.094 R)
• M10: 4,011,916 km (0.108 R)
• M11: 4,341,929 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.9

Radius: 14.6

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.04 AU - 1.1 AU

Year: 778 Days

Day: 6.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 13,201,975 km

• M1: 182,210 km (0.093 R)
• M2: 690,394 km (0.117 R)
• M3: 1,241,064 km (0.089 R)
• M4: 1,720,675 km (0.094 R)
• M5: 2,189,514 km (0.095 R)
• M6: 2,667,180 km (0.079 R)
• M7: 3,775,850 km (0.117 R)
• M8: 5,036,212 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.7

Radius: 14.2

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.09 AU - 1.49 AU

Year: 1030 Days

Day: 13.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 13,201,975 km

• M1: 176,825 km (0.113 R)
• M2: 834,008 km (0.083 R)
• M3: 1,360,293 km (0.046 R)
• M4: 1,849,179 km (0.101 R)
• M5: 2,325,349 km (0.098 R)
• M6: 3,026,664 km (0.082 R)
• M7: 3,532,604 km (0.102 R)
• M8: 4,362,723 km (0.074 R)
• M9: 5,336,006 km (0.103 R)
• M10: 5,901,187 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.9

Radius: 8.9

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.18 AU - 1.86 AU

Year: 1317 Days

Day: 13.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 13,201,975 km

• M1: 113,545 km (0.087 R)
• M2: 467,344 km (0.092 R)
• M3: 831,465 km (0.104 R)
• M4: 1,215,483 km (0.106 R)
• M5: 2,429,619 km (0.086 R)
• M6: 3,694,768 km (0.05 R)
• M7: 4,371,549 km (0.065 R)
• M8: 5,300,253 km (0.08 R)
• M9: 5,619,345 km (0.102 R)
• M10: 6,179,888 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.2

Radius: 8.5

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.37 AU - 1.71 AU

Year: 1343 Days

Day: 11.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 13,201,975 km

• M1: 105,766 km (0.103 R)
• M2: 377,435 km (0.083 R)
• M3: 787,034 km (0.069 R)
• M4: 1,067,680 km (0.069 R)
• M5: 1,540,409 km (0.039 R)
• M6: 1,850,077 km (0.116 R)
• M7: 2,245,763 km (0.105 R)
• M8: 2,560,368 km (0.102 R)
• M9: 3,845,413 km (0.117 R)
• M10: 4,211,928 km (0.072 R)
• M11: 4,712,034 km (0.063 R)
• M12: 5,112,657 km (0.12 R)
• M13: 5,745,456 km (0.036 R)
• M14: 6,225,515 km (0.109 R)
• M15: 6,850,984 km (0.119 R)
• M16: 7,723,289 km (0.12 R)
• M17: 8,065,420 km (0.083 R)
• M18: 8,500,450 km (0.065 R)
• M19: 8,951,189 km (0.109 R)
• M20: 10,210,204 km (0.099 R)
• M21: 11,112,579 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.4

Radius: 9.7

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.8 AU - 2.32 AU

Year: 2078 Days

Day: 13.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 13,201,975 km

• M1: 121,025 km (0.111 R)
• M2: 738,415 km (0.112 R)
• M3: 1,482,066 km (0.098 R)
• M4: 1,853,069 km (0.067 R)
• M5: 2,475,396 km (0.033 R)
• M6: 2,785,812 km (0.101 R)
• M7: 3,529,911 km (0.055 R)
• M8: 5,253,578 km (0.113 R)
• M9: 6,999,236 km (0.092 R)
• M10: 7,700,401 km (0.045 R)
• M11: 10,115,958 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.8

Radius: 14.5

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.57 AU - 3.09 AU

Year: 3346 Days

Day: 13.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 13,201,975 km

• M1: 180,415 km (0.089 R)
• M2: 701,165 km (0.091 R)
• M3: 1,938,340 km (0.105 R)
• M4: 2,516,535 km (0.12 R)
• M5: 5,873,960 km (0.118 R)
• M6: 9,054,262 km (0.073 R)
• M7: 9,578,452 km (0.084 R)
• M8: 10,654,360 km (0.117 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 13,937 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit