🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.47 AU - 0.67 AU

Year: 155 Days

Day: 16.5 Hours

Environment

Temp: 181 °C

Axial Tilt: 47.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.72 AU - 1.18 AU

Year: 333 Days

Day: 44.9 Hours

Environment

Temp: 148 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 25,303,010 km

• M1: 16,605 km (0.051 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.01 AU - 1.33 AU

Year: 455 Days

Day: 19.7 Hours

Environment

Temp: 5 °C

Axial Tilt: 24.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 25,303,010 km

• M1: 44,431 km (0.076 R)
• M2: 989,440 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.75 AU - 1.81 AU

Year: 855 Days

Day: 24.4 Hours

Environment

Temp: -46 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.2

Radius: 10.2

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.04 AU - 8.72 AU

Year: 8730 Days

Day: 9.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,303,010 km

• M1: 127,457 km (0.037 R)
• M2: 564,283 km (0.081 R)
• M3: 1,331,122 km (0.104 R)
• M4: 1,738,178 km (0.114 R)
• M5: 2,707,422 km (0.107 R)
• M6: 3,427,287 km (0.097 R)
• M7: 6,851,134 km (0.071 R)
• M8: 8,542,188 km (0.098 R)
• M9: 10,082,747 km (0.113 R)
• M10: 10,961,934 km (0.112 R)
• M11: 12,212,572 km (0.088 R)
• M12: 15,973,313 km (0.12 R)
• M13: 16,477,757 km (0.085 R)
• M14: 21,917,434 km (0.104 R)
• M15: 22,610,521 km (0.108 R)
• M16: 23,533,540 km (0.057 R)

Kuiper Belt

Range: 30.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 15,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit