🌌 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: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.58 AU - 0.96 AU

Year: 239 Days

Day: 35.2 Hours

Environment

Temp: 113 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.67 AU - 0.87 AU

Year: 239 Days

Day: 31.2 Hours

Environment

Temp: 133 °C

Axial Tilt: 7.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 45,247,334 km

• M1: 152,440 km (0.079 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.32 AU - 1.5 AU

Year: 591 Days

Day: 30.9 Hours

Environment

Temp: 9 °C

Axial Tilt: 6.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 45,247,334 km

• M1: 193,280 km (0.071 R)

Asteroid Belt

Center: 4.97 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.2

Radius: 11.6

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 8.09 AU - 8.97 AU

Year: 8797 Days

Day: 8.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,247,334 km

• M1: 144,362 km (0.051 R)
• M2: 523,293 km (0.091 R)
• M3: 1,720,076 km (0.117 R)
• M4: 2,249,503 km (0.058 R)
• M5: 2,885,893 km (0.098 R)
• M6: 3,933,377 km (0.08 R)
• M7: 5,246,996 km (0.106 R)
• M8: 5,744,259 km (0.106 R)
• M9: 7,499,640 km (0.117 R)
• M10: 8,017,847 km (0.053 R)
• M11: 10,110,422 km (0.11 R)
• M12: 11,693,617 km (0.084 R)
• M13: 16,304,223 km (0.06 R)
• M14: 18,077,107 km (0.112 R)
• M15: 19,010,299 km (0.064 R)
• M16: 22,378,645 km (0.107 R)
• M17: 22,989,154 km (0.074 R)
• M18: 23,454,403 km (0.079 R)
• M19: 27,059,861 km (0.045 R)
• M20: 27,752,948 km (0.105 R)
• M21: 29,995,271 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 192.5

Radius: 6.1

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 11.42 AU - 15.36 AU

Year: 17301 Days

Day: 24.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,247,334 km

• M1: 111,002 km (0.113 R)
• M2: 348,114 km (0.102 R)
• M3: 556,803 km (0.109 R)
• M4: 984,803 km (0.087 R)
• M5: 1,212,042 km (0.061 R)
• M6: 1,774,081 km (0.062 R)
• M7: 3,076,630 km (0.106 R)
• M8: 3,642,259 km (0.074 R)
• M9: 4,056,496 km (0.098 R)
• M10: 4,825,878 km (0.046 R)
• M11: 5,790,335 km (0.086 R)
• M12: 6,138,599 km (0.116 R)
• M13: 7,268,063 km (0.117 R)
• M14: 9,072,961 km (0.112 R)
• M15: 10,078,857 km (0.098 R)
• M16: 10,841,507 km (0.064 R)
• M17: 11,532,949 km (0.081 R)
• M18: 15,239,984 km (0.101 R)
• M19: 17,006,436 km (0.114 R)
• M20: 18,380,492 km (0.08 R)
• M21: 20,298,935 km (0.098 R)
• M22: 21,102,425 km (0.116 R)
• M23: 23,377,510 km (0.075 R)
• M24: 24,260,137 km (0.11 R)
• M25: 24,619,322 km (0.052 R)
• M26: 29,616,788 km (0.102 R)
• M27: 33,557,794 km (0.117 R)
• M28: 36,292,743 km (0.1 R)
• M29: 44,841,962 km (0.094 R)

Kuiper Belt

Range: 31.1 - 59.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 17,317 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit