🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.61 AU - 0.79 AU

Year: 215 Days

Day: 17.9 Hours

Environment

Temp: 185 °C

Axial Tilt: 18.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.23 AU - 1.71 AU

Year: 654 Days

Day: 32.4 Hours

Environment

Temp: -44 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.28 AU - 3.74 AU

Year: 2414 Days

Day: 21.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,818,820 km

• M1: 48,021 km (0.073 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.42 AU - 5.12 AU

Year: 3239 Days

Day: 32.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.99 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29

Radius: 11.2

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.46 AU - 6.96 AU

Year: 5009 Days

Day: 9.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,818,820 km

• M1: 379,979 km (0.055 R)
• M2: 1,000,959 km (0.098 R)
• M3: 1,385,127 km (0.111 R)
• M4: 1,907,074 km (0.069 R)
• M5: 4,667,304 km (0.089 R)
• M6: 5,073,163 km (0.092 R)
• M7: 5,462,566 km (0.073 R)
• M8: 6,456,943 km (0.093 R)
• M9: 7,693,519 km (0.095 R)
• M10: 8,261,692 km (0.073 R)
• M11: 9,924,921 km (0.072 R)
• M12: 10,536,328 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.7

Radius: 9.2

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.46 AU - 10.6 AU

Year: 10800 Days

Day: 11.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,818,820 km

• M1: 114,442 km (0.1 R)
• M2: 1,202,468 km (0.084 R)
• M3: 1,874,611 km (0.107 R)
• M4: 2,455,350 km (0.087 R)
• M5: 2,981,785 km (0.103 R)
• M6: 4,286,727 km (0.086 R)
• M7: 5,202,416 km (0.106 R)
• M8: 7,262,827 km (0.114 R)
• M9: 12,521,940 km (0.043 R)
• M10: 14,992,998 km (0.081 R)
• M11: 17,355,298 km (0.105 R)
• M12: 18,769,746 km (0.078 R)
• M13: 20,412,779 km (0.116 R)
• M14: 25,914,540 km (0.111 R)
• M15: 33,707,542 km (0.089 R)
• M16: 35,790,543 km (0.067 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 18,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit