🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.53 AU - 0.77 AU

Year: 338 Days

Day: 19.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.5

Radius: 13.3

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.89 AU - 0.93 AU

Year: 561 Days

Day: 8.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 9,495,336 km

• M1: 165,455 km (0.106 R)
• M2: 625,917 km (0.114 R)
• M3: 1,272,479 km (0.09 R)
• M4: 2,390,275 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.6

Radius: 11.4

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.58 AU - 3.14 AU

Year: 3123 Days

Day: 6.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 9,495,336 km

• M1: 147,504 km (0.032 R)
• M2: 536,009 km (0.09 R)
• M3: 1,542,204 km (0.051 R)
• M4: 3,419,359 km (0.056 R)
• M5: 3,901,363 km (0.075 R)
• M6: 4,894,992 km (0.118 R)
• M7: 6,386,483 km (0.098 R)
• M8: 8,136,030 km (0.09 R)
• M9: 8,495,065 km (0.104 R)
• M10: 9,495,276 km (0.063 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 17,124 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit