🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.63 AU - 0.91 AU

Year: 243 Days

Day: 23.4 Hours

Environment

Temp: 171 °C

Axial Tilt: 13.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,268,975 km

• M1: 59,839 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.97 AU - 1.09 AU

Year: 376 Days

Day: 25.2 Hours

Environment

Temp: 40 °C

Axial Tilt: 34 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.55 AU - 1.99 AU

Year: 847 Days

Day: 41.6 Hours

Environment

Temp: -42 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.73 AU - 2.81 AU

Year: 1231 Days

Day: 46.1 Hours

Environment

Temp: -81 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.95 AU - 2.89 AU

Year: 1355 Days

Day: 30.2 Hours

Environment

Temp: -76 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,268,975 km

• M1: 1,449,753 km (0.062 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.63

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.5 AU - 4.6 AU

Year: 3493 Days

Day: 31.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 9.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 15.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.6

Radius: 5.8

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 12.5 AU - 18.6 AU

Year: 22068 Days

Day: 15.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,268,975 km

• M1: 72,555 km (0.12 R)
• M2: 279,449 km (0.073 R)
• M3: 1,586,336 km (0.059 R)
• M4: 2,396,558 km (0.097 R)
• M5: 3,507,322 km (0.044 R)
• M6: 3,895,977 km (0.057 R)
• M7: 4,693,184 km (0.075 R)
• M8: 7,285,117 km (0.097 R)
• M9: 11,456,504 km (0.085 R)
• M10: 14,418,692 km (0.037 R)
• M11: 14,910,121 km (0.1 R)
• M12: 17,378,485 km (0.114 R)
• M13: 19,761,430 km (0.101 R)
• M14: 28,201,443 km (0.091 R)
• M15: 36,910,133 km (0.118 R)
• M16: 37,961,357 km (0.105 R)
• M17: 38,897,391 km (0.112 R)
• M18: 42,795,762 km (0.056 R)
• M19: 46,186,547 km (0.119 R)
• M20: 55,182,316 km (0.111 R)
• M21: 55,694,689 km (0.112 R)

Kuiper Belt

Range: 30.5 - 51.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 17,447 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit