🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.49 AU - 0.69 AU

Year: 297 Days

Day: 30 Hours

Environment

Temp: -118 °C

Axial Tilt: 45.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.2

Radius: 8.1

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.66 AU - 0.8 AU

Year: 409 Days

Day: 11.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,823,198 km

• M1: 106,065 km (0.043 R)
• M2: 368,011 km (0.112 R)
• M3: 771,327 km (0.114 R)
• M4: 1,182,422 km (0.077 R)
• M5: 1,455,138 km (0.115 R)
• M6: 1,770,192 km (0.094 R)
• M7: 2,255,786 km (0.103 R)
• M8: 2,521,173 km (0.107 R)
• M9: 2,797,630 km (0.052 R)
• M10: 3,608,450 km (0.079 R)
• M11: 4,553,610 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.5

Radius: 9.3

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.84 AU - 4.7 AU

Year: 4802 Days

Day: 9.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,823,198 km

• M1: 121,922 km (0.051 R)
• M2: 445,802 km (0.119 R)
• M3: 846,126 km (0.088 R)
• M4: 2,783,867 km (0.107 R)
• M5: 3,739,049 km (0.089 R)
• M6: 6,027,747 km (0.073 R)
• M7: 8,851,556 km (0.078 R)
• M8: 9,272,824 km (0.108 R)
• M9: 10,318,663 km (0.086 R)

Asteroid Belt

Center: 5.67 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.1

Radius: 5.9

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 7.3 AU - 7.82 AU

Year: 13636 Days

Day: 24.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,823,198 km

• M1: 73,752 km (0.093 R)
• M2: 400,922 km (0.087 R)
• M3: 1,577,360 km (0.117 R)
• M4: 1,899,594 km (0.091 R)
• M5: 2,233,945 km (0.074 R)
• M6: 2,505,764 km (0.042 R)
• M7: 4,186,197 km (0.086 R)
• M8: 14,738,083 km (0.082 R)
• M9: 20,001,385 km (0.052 R)
• M10: 21,242,299 km (0.119 R)
• M11: 23,800,423 km (0.105 R)
• M12: 24,028,859 km (0.117 R)
• M13: 26,231,538 km (0.103 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: 192 - 10,249 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit