🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.6 AU - 0.64 AU

Year: 315 Days

Day: 36 Hours

Environment

Temp: -121 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.1

Radius: 8.4

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.75 AU - 1.13 AU

Year: 588 Days

Day: 9.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 12,732,158 km

• M1: 104,419 km (0.076 R)
• M2: 406,607 km (0.104 R)
• M3: 686,205 km (0.077 R)
• M4: 1,267,094 km (0.085 R)
• M5: 1,956,740 km (0.081 R)
• M6: 2,335,971 km (0.097 R)
• M7: 2,609,585 km (0.046 R)
• M8: 2,914,316 km (0.067 R)
• M9: 3,284,272 km (0.036 R)
• M10: 3,584,963 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.4

Radius: 11

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.08 AU - 1.36 AU

Year: 870 Days

Day: 8.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 12,732,158 km

• M1: 137,331 km (0.108 R)
• M2: 590,014 km (0.075 R)
• M3: 990,039 km (0.074 R)
• M4: 1,674,599 km (0.092 R)
• M5: 2,525,362 km (0.039 R)
• M6: 3,100,865 km (0.069 R)
• M7: 4,687,350 km (0.074 R)
• M8: 5,232,186 km (0.114 R)
• M9: 6,470,557 km (0.119 R)
• M10: 6,916,508 km (0.045 R)
• M11: 7,721,644 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.9

Radius: 10.4

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.49 AU - 1.93 AU

Year: 1444 Days

Day: 13.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 12,732,158 km

• M1: 129,402 km (0.077 R)
• M2: 708,196 km (0.05 R)
• M3: 1,269,488 km (0.089 R)
• M4: 1,614,610 km (0.097 R)
• M5: 1,990,998 km (0.091 R)
• M6: 3,183,293 km (0.12 R)
• M7: 4,179,765 km (0.116 R)
• M8: 4,529,375 km (0.069 R)
• M9: 5,080,493 km (0.086 R)
• M10: 6,853,826 km (0.063 R)
• M11: 7,554,393 km (0.11 R)
• M12: 9,250,833 km (0.08 R)
• M13: 10,041,159 km (0.114 R)
• M14: 11,974,711 km (0.066 R)
• M15: 12,721,953 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.3

Radius: 12.1

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.7 AU - 2.2 AU

Year: 1758 Days

Day: 12.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 12,732,158 km

• M1: 155,133 km (0.109 R)
• M2: 536,308 km (0.082 R)
• M3: 914,193 km (0.11 R)
• M4: 1,568,234 km (0.111 R)
• M5: 2,360,056 km (0.057 R)
• M6: 4,905,464 km (0.085 R)
• M7: 5,872,016 km (0.113 R)
• M8: 6,713,803 km (0.036 R)
• M9: 7,292,597 km (0.048 R)
• M10: 8,293,556 km (0.051 R)
• M11: 8,695,376 km (0.109 R)
• M12: 9,979,674 km (0.095 R)
• M13: 10,534,084 km (0.117 R)
• M14: 11,108,988 km (0.066 R)
• M15: 12,247,877 km (0.116 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: 297 - 15,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit