🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.65 AU - 0.67 AU

Year: 194 Days

Day: 32.2 Hours

Environment

Temp: 195 °C

Axial Tilt: 45 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 43,802,570 km

• M1: 38,746 km (0.085 R)
• M2: 152,291 km (0.036 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.87 AU - 1.37 AU

Year: 429 Days

Day: 29.4 Hours

Environment

Temp: 32 °C

Axial Tilt: 69.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.1 AU - 1.32 AU

Year: 481 Days

Day: 19.1 Hours

Environment

Temp: 19 °C

Axial Tilt: 17.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 43,802,570 km

• M1: 419,622 km (0.098 R)
• M2: 686,953 km (0.07 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.01 AU - 3.97 AU

Year: 2358 Days

Day: 42.8 Hours

Environment

Temp: -102 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 11.55 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 19.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53

Radius: 8

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 17.14 AU - 22.08 AU

Year: 31406 Days

Day: 22.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,802,570 km

• M1: 138,228 km (0.099 R)
• M2: 950,246 km (0.108 R)
• M3: 1,414,149 km (0.115 R)
• M4: 2,155,556 km (0.047 R)
• M5: 2,691,864 km (0.1 R)
• M6: 2,981,186 km (0.101 R)
• M7: 3,407,241 km (0.114 R)
• M8: 5,529,736 km (0.115 R)
• M9: 6,068,886 km (0.093 R)
• M10: 6,605,943 km (0.098 R)
• M11: 8,108,055 km (0.102 R)
• M12: 10,464,820 km (0.116 R)
• M13: 10,718,089 km (0.112 R)
• M14: 14,208,058 km (0.083 R)
• M15: 16,074,142 km (0.118 R)
• M16: 20,364,010 km (0.083 R)
• M17: 20,918,719 km (0.047 R)
• M18: 23,153,412 km (0.111 R)
• M19: 33,250,520 km (0.101 R)
• M20: 42,762,103 km (0.088 R)

Kuiper Belt

Range: 30.3 - 57.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 14,653 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit