🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.75 AU - 0.85 AU

Year: 271 Days

Day: 40.2 Hours

Environment

Temp: 124 °C

Axial Tilt: 19.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.84 AU - 1.26 AU

Year: 408 Days

Day: 23.1 Hours

Environment

Temp: 9 °C

Axial Tilt: 14.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 2.68 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.4

Radius: 9.1

Gravity: 11.28 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.93 AU - 4.67 AU

Year: 3377 Days

Day: 12.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 92,236,504 km

• M1: 113,246 km (0.116 R)
• M2: 429,495 km (0.119 R)
• M3: 1,035,516 km (0.025 R)
• M4: 2,269,848 km (0.105 R)
• M5: 2,987,320 km (0.086 R)
• M6: 3,701,351 km (0.07 R)
• M7: 4,199,811 km (0.118 R)
• M8: 4,992,679 km (0.094 R)
• M9: 5,519,713 km (0.1 R)
• M10: 5,881,889 km (0.053 R)
• M11: 6,623,147 km (0.096 R)
• M12: 7,798,238 km (0.071 R)
• M13: 9,455,782 km (0.1 R)
• M14: 9,975,336 km (0.107 R)
• M15: 10,556,224 km (0.066 R)
• M16: 13,753,579 km (0.106 R)
• M17: 15,820,274 km (0.099 R)
• M18: 22,538,864 km (0.076 R)

Planet 4 - Ice Giant

Semi-Major Axis: 18.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564.4

Radius: 5.8

Gravity: 16.78 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 15.63 AU - 20.77 AU

Year: 29407 Days

Day: 19.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 92,236,504 km

• M1: 72,705 km (0.05 R)
• M2: 353,051 km (0.092 R)
• M3: 1,013,825 km (0.083 R)
• M4: 1,494,932 km (0.086 R)
• M5: 2,390,424 km (0.063 R)
• M6: 3,149,185 km (0.094 R)
• M7: 3,414,422 km (0.093 R)
• M8: 4,265,484 km (0.083 R)
• M9: 6,517,530 km (0.112 R)
• M10: 6,900,351 km (0.084 R)
• M11: 8,868,611 km (0.068 R)
• M12: 11,455,008 km (0.062 R)
• M13: 12,369,949 km (0.101 R)
• M14: 12,808,121 km (0.11 R)
• M15: 13,638,539 km (0.106 R)
• M16: 16,607,009 km (0.072 R)
• M17: 21,405,959 km (0.117 R)
• M18: 21,825,581 km (0.105 R)
• M19: 29,436,822 km (0.062 R)
• M20: 31,145,678 km (0.091 R)
• M21: 32,229,515 km (0.057 R)
• M22: 35,193,946 km (0.063 R)
• M23: 38,181,565 km (0.072 R)
• M24: 49,052,095 km (0.098 R)
• M25: 50,702,907 km (0.066 R)
• M26: 55,089,416 km (0.04 R)
• M27: 58,489,626 km (0.117 R)
• M28: 67,708,894 km (0.093 R)
• M29: 70,675,719 km (0.117 R)
• M30: 75,407,350 km (0.054 R)
• M31: 87,615,583 km (0.107 R)
• M32: 88,150,994 km (0.1 R)
• M33: 91,409,535 km (0.12 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 12,941 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit