🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.85 AU - 1.21 AU

Year: 367 Days

Day: 23.4 Hours

Environment

Temp: 90 °C

Axial Tilt: 19.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.95 AU - 1.57 AU

Year: 497 Days

Day: 31.3 Hours

Environment

Temp: 12 °C

Axial Tilt: 32.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 72,659,519 km

• M1: 49,218 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.92 AU - 2.98 AU

Year: 1781 Days

Day: 43.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,659,519 km

• M1: 350,358 km (0.092 R)
• M2: 705,204 km (0.05 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.73 AU - 3.77 AU

Year: 2059 Days

Day: 18.1 Hours

Environment

Temp: -108 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,659,519 km

• M1: 13,913 km (0.077 R)
• M2: 71,657 km (0.029 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.6

Radius: 6.4

Gravity: 9.8 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 14.26 AU - 19.5 AU

Year: 24375 Days

Day: 17.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,659,519 km

• M1: 79,885 km (0.081 R)
• M2: 634,445 km (0.113 R)
• M3: 962,662 km (0.031 R)
• M4: 1,200,074 km (0.088 R)
• M5: 1,492,388 km (0.083 R)
• M6: 1,759,720 km (0.062 R)
• M7: 2,759,632 km (0.096 R)
• M8: 5,850,174 km (0.069 R)
• M9: 10,582,105 km (0.098 R)
• M10: 12,089,303 km (0.119 R)
• M11: 15,678,605 km (0.097 R)
• M12: 19,464,927 km (0.105 R)
• M13: 32,066,304 km (0.088 R)
• M14: 37,101,319 km (0.12 R)
• M15: 45,443,944 km (0.115 R)
• M16: 55,680,178 km (0.106 R)
• M17: 59,787,986 km (0.115 R)
• M18: 65,912,373 km (0.107 R)
• M19: 72,224,954 km (0.119 R)

Kuiper Belt

Range: 31.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 382 - 10,468 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit