🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.49 AU - 0.73 AU

Year: 313 Days

Day: 31.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.9

Radius: 8.8

Gravity: 10.54 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.74 AU - 0.8 AU

Year: 443 Days

Day: 6.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 10,543,359 km

• M1: 109,506 km (0.063 R)
• M2: 391,647 km (0.038 R)
• M3: 698,622 km (0.118 R)
• M4: 1,024,895 km (0.035 R)
• M5: 1,387,371 km (0.082 R)
• M6: 1,710,801 km (0.11 R)
• M7: 1,998,927 km (0.077 R)
• M8: 2,329,089 km (0.104 R)
• M9: 2,613,176 km (0.09 R)
• M10: 4,087,463 km (0.099 R)
• M11: 4,979,664 km (0.112 R)
• M12: 5,488,746 km (0.048 R)
• M13: 5,870,669 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.7

Radius: 14.3

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.68 AU - 0.96 AU

Year: 487 Days

Day: 11.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 10,543,359 km

• M1: 177,872 km (0.043 R)
• M2: 660,325 km (0.105 R)
• M3: 1,159,982 km (0.09 R)
• M4: 1,711,100 km (0.078 R)
• M5: 2,379,953 km (0.098 R)
• M6: 3,498,645 km (0.094 R)
• M7: 3,983,043 km (0.069 R)
• M8: 4,482,401 km (0.083 R)
• M9: 4,975,775 km (0.055 R)
• M10: 5,522,405 km (0.12 R)
• M11: 6,295,078 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749

Radius: 13.9

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.77 AU - 1.05 AU

Year: 569 Days

Day: 8.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 10,543,359 km

• M1: 177,124 km (0.094 R)
• M2: 675,584 km (0.05 R)
• M3: 1,253,481 km (0.099 R)
• M4: 1,898,547 km (0.045 R)
• M5: 2,517,283 km (0.117 R)
• M6: 3,088,298 km (0.027 R)
• M7: 5,102,783 km (0.105 R)
• M8: 6,388,577 km (0.097 R)
• M9: 6,972,308 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.1

Radius: 13.1

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.39 AU - 1.91 AU

Year: 1390 Days

Day: 10.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 10,543,359 km

• M1: 163,062 km (0.063 R)
• M2: 676,033 km (0.047 R)
• M3: 1,247,497 km (0.096 R)
• M4: 1,699,581 km (0.119 R)
• M5: 2,709,367 km (0.092 R)
• M6: 3,243,282 km (0.1 R)
• M7: 3,831,351 km (0.114 R)
• M8: 5,319,850 km (0.074 R)
• M9: 6,055,572 km (0.102 R)
• M10: 7,456,107 km (0.054 R)
• M11: 9,375,598 km (0.117 R)
• M12: 9,813,770 km (0.07 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 15,833 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit