🌌 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: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.68 AU - 0.74 AU

Year: 221 Days

Day: 38.1 Hours

Environment

Temp: 121 °C

Axial Tilt: 28.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.64 AU - 1.04 AU

Year: 284 Days

Day: 15.5 Hours

Environment

Temp: 82 °C

Axial Tilt: 18.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.91 AU - 1.01 AU

Year: 347 Days

Day: 42 Hours

Environment

Temp: 28 °C

Axial Tilt: 76.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.22 AU - 1.48 AU

Year: 579 Days

Day: 29.4 Hours

Environment

Temp: -37 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,276,691 km

• M1: 514,467 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.5

Radius: 10.8

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.16 AU - 5.88 AU

Year: 4150 Days

Day: 12.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 23,276,691 km

• M1: 134,339 km (0.107 R)
• M2: 478,863 km (0.085 R)
• M3: 843,882 km (0.114 R)
• M4: 1,626,578 km (0.057 R)
• M5: 2,039,169 km (0.115 R)
• M6: 2,416,454 km (0.095 R)
• M7: 2,840,415 km (0.054 R)
• M8: 3,186,135 km (0.027 R)
• M9: 3,540,832 km (0.029 R)
• M10: 4,330,559 km (0.047 R)
• M11: 4,911,448 km (0.063 R)
• M12: 5,310,126 km (0.074 R)
• M13: 6,087,885 km (0.098 R)
• M14: 8,174,626 km (0.077 R)
• M15: 10,094,116 km (0.104 R)
• M16: 12,161,858 km (0.092 R)
• M17: 12,524,483 km (0.111 R)
• M18: 12,894,289 km (0.067 R)
• M19: 16,067,111 km (0.095 R)
• M20: 16,449,034 km (0.054 R)
• M21: 18,509,894 km (0.108 R)
• M22: 18,990,253 km (0.119 R)
• M23: 19,664,341 km (0.066 R)
• M24: 20,545,323 km (0.108 R)
• M25: 21,716,375 km (0.112 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 12,353 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit