🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.6 AU - 0.92 AU

Year: 241 Days

Day: 35.3 Hours

Environment

Temp: 159 °C

Axial Tilt: 4.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.8 AU - 1.28 AU

Year: 385 Days

Day: 45.3 Hours

Environment

Temp: 29 °C

Axial Tilt: 22.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 30,886,721 km

• M1: 19,897 km (0.062 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.81 AU - 1.29 AU

Year: 391 Days

Day: 17.9 Hours

Environment

Temp: 21 °C

Axial Tilt: 24.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.22 AU - 1.64 AU

Year: 621 Days

Day: 37.4 Hours

Environment

Temp: -30 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,886,721 km

• M1: 1,034,320 km (0.038 R)

Asteroid Belt

Center: 4.68 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.3

Radius: 14.2

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.16 AU - 9.68 AU

Year: 8101 Days

Day: 8.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,886,721 km

• M1: 176,825 km (0.077 R)
• M2: 781,050 km (0.119 R)
• M3: 1,280,259 km (0.086 R)
• M4: 2,083,599 km (0.049 R)
• M5: 2,704,430 km (0.11 R)
• M6: 3,509,566 km (0.065 R)
• M7: 5,286,041 km (0.077 R)
• M8: 6,230,751 km (0.071 R)
• M9: 6,743,872 km (0.068 R)
• M10: 7,354,979 km (0.119 R)
• M11: 8,727,689 km (0.072 R)
• M12: 10,891,772 km (0.118 R)
• M13: 12,621,124 km (0.099 R)
• M14: 13,184,360 km (0.12 R)
• M15: 15,203,183 km (0.066 R)
• M16: 16,137,272 km (0.095 R)
• M17: 17,358,140 km (0.112 R)
• M18: 17,927,360 km (0.055 R)
• M19: 21,247,685 km (0.054 R)
• M20: 24,168,284 km (0.094 R)
• M21: 24,719,403 km (0.102 R)
• M22: 27,688,023 km (0.08 R)
• M23: 29,974,626 km (0.101 R)

Kuiper Belt

Range: 30.2 - 57.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 15,044 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit