🌌 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: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.65 AU - 0.75 AU

Year: 222 Days

Day: 40.3 Hours

Environment

Temp: 149 °C

Axial Tilt: 17.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 63,778,525 km

• M1: 364,720 km (0.116 R)
• M2: 530,025 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.94 AU - 1.28 AU

Year: 443 Days

Day: 20.8 Hours

Environment

Temp: 4 °C

Axial Tilt: 0.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 63,778,525 km

• M1: 191,635 km (0.057 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.18 AU - 1.74 AU

Year: 668 Days

Day: 19.2 Hours

Environment

Temp: -43 °C

Axial Tilt: 4.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.69 AU - 1.77 AU

Year: 862 Days

Day: 44.9 Hours

Environment

Temp: -70 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.7 AU - 2.02 AU

Year: 961 Days

Day: 25.5 Hours

Environment

Temp: -66 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 17.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 212.8

Radius: 5.4

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 16.03 AU - 18.81 AU

Year: 27537 Days

Day: 24.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 63,778,525 km

• M1: 67,319 km (0.094 R)
• M2: 426,504 km (0.063 R)
• M3: 674,238 km (0.064 R)
• M4: 1,910,664 km (0.033 R)
• M5: 2,096,614 km (0.085 R)
• M6: 2,505,615 km (0.085 R)
• M7: 2,965,927 km (0.112 R)
• M8: 3,426,988 km (0.119 R)
• M9: 3,702,996 km (0.111 R)
• M10: 4,331,008 km (0.105 R)
• M11: 5,203,612 km (0.091 R)
• M12: 7,608,697 km (0.102 R)
• M13: 8,175,224 km (0.085 R)
• M14: 10,267,500 km (0.105 R)
• M15: 17,807,233 km (0.053 R)
• M16: 19,229,161 km (0.108 R)
• M17: 21,179,468 km (0.116 R)
• M18: 22,677,990 km (0.059 R)
• M19: 23,649,628 km (0.055 R)
• M20: 24,145,844 km (0.108 R)
• M21: 27,705,077 km (0.088 R)
• M22: 28,034,940 km (0.082 R)
• M23: 36,364,998 km (0.104 R)
• M24: 37,292,206 km (0.094 R)
• M25: 42,602,631 km (0.046 R)
• M26: 48,873,924 km (0.075 R)
• M27: 49,516,895 km (0.051 R)
• M28: 56,434,899 km (0.108 R)
• M29: 56,611,275 km (0.035 R)
• M30: 57,855,929 km (0.12 R)
• M31: 59,118,685 km (0.116 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 18,679 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit