🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.69 AU - 0.75 AU

Year: 234 Days

Day: 29.3 Hours

Environment

Temp: 135 °C

Axial Tilt: 23.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.8 AU - 1.08 AU

Year: 349 Days

Day: 37.1 Hours

Environment

Temp: 25 °C

Axial Tilt: 2.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 38,981,620 km

• M1: 168,298 km (0.117 R)
• M2: 303,983 km (0.079 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.88 AU - 4.72 AU

Year: 2836 Days

Day: 37.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,981,620 km

• M1: 54,154 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.5

Radius: 12.6

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 7.45 AU - 8.31 AU

Year: 8470 Days

Day: 13.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,981,620 km

• M1: 162,912 km (0.114 R)
• M2: 648,357 km (0.103 R)
• M3: 1,271,731 km (0.104 R)
• M4: 1,793,678 km (0.063 R)
• M5: 3,984,838 km (0.078 R)
• M6: 4,818,398 km (0.083 R)
• M7: 7,293,644 km (0.075 R)
• M8: 7,983,739 km (0.082 R)
• M9: 8,453,327 km (0.039 R)
• M10: 10,071,377 km (0.105 R)
• M11: 12,052,502 km (0.109 R)
• M12: 13,790,680 km (0.114 R)
• M13: 15,624,600 km (0.025 R)
• M14: 16,703,350 km (0.065 R)
• M15: 20,081,719 km (0.097 R)
• M16: 29,652,243 km (0.105 R)
• M17: 31,303,803 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.7

Radius: 4.8

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 14.86 AU - 19.02 AU

Year: 26696 Days

Day: 15.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 38,981,620 km

• M1: 191,036 km (0.114 R)
• M2: 380,577 km (0.088 R)
• M3: 682,615 km (0.038 R)
• M4: 851,661 km (0.11 R)
• M5: 1,408,165 km (0.109 R)
• M6: 2,031,240 km (0.09 R)
• M7: 2,280,769 km (0.115 R)
• M8: 2,550,644 km (0.071 R)
• M9: 4,364,219 km (0.07 R)
• M10: 4,983,554 km (0.069 R)
• M11: 6,154,456 km (0.099 R)
• M12: 6,535,333 km (0.096 R)
• M13: 8,053,452 km (0.056 R)
• M14: 8,466,791 km (0.089 R)
• M15: 13,814,466 km (0.109 R)
• M16: 14,647,876 km (0.084 R)
• M17: 15,640,757 km (0.078 R)
• M18: 20,137,519 km (0.101 R)
• M19: 22,395,250 km (0.085 R)
• M20: 24,131,782 km (0.063 R)
• M21: 26,223,908 km (0.077 R)
• M22: 27,313,878 km (0.092 R)
• M23: 34,280,502 km (0.11 R)
• M24: 37,711,230 km (0.066 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 19,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit