🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.43 AU - 0.65 AU

Year: 256 Days

Day: 16.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 12,175,470 km

• M1: 43,982 km (0.071 R)
• M2: 70,012 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.2

Radius: 12.1

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.71 AU - 0.79 AU

Year: 419 Days

Day: 14.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 12,175,470 km

• M1: 151,243 km (0.098 R)
• M2: 645,664 km (0.106 R)
• M3: 1,059,003 km (0.038 R)
• M4: 1,593,217 km (0.08 R)
• M5: 2,165,280 km (0.078 R)
• M6: 2,543,313 km (0.112 R)
• M7: 3,590,648 km (0.093 R)
• M8: 3,993,515 km (0.096 R)
• M9: 4,713,231 km (0.093 R)
• M10: 5,245,051 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.4

Radius: 14.7

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.33 AU - 2.21 AU

Year: 1520 Days

Day: 13.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 12,175,470 km

• M1: 192,233 km (0.051 R)
• M2: 1,069,026 km (0.098 R)
• M3: 1,567,786 km (0.118 R)
• M4: 2,535,385 km (0.089 R)
• M5: 3,287,114 km (0.119 R)
• M6: 4,264,287 km (0.081 R)
• M7: 5,109,216 km (0.096 R)
• M8: 8,403,212 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.9

Radius: 9.8

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.93 AU - 2.47 AU

Year: 2107 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 12,175,470 km

• M1: 123,269 km (0.072 R)
• M2: 505,790 km (0.117 R)
• M3: 1,107,174 km (0.091 R)
• M4: 1,488,499 km (0.079 R)
• M5: 1,906,176 km (0.035 R)
• M6: 2,216,143 km (0.102 R)
• M7: 2,871,232 km (0.066 R)
• M8: 4,696,326 km (0.088 R)
• M9: 5,065,982 km (0.049 R)
• M10: 5,603,338 km (0.12 R)
• M11: 6,386,333 km (0.107 R)
• M12: 9,569,177 km (0.083 R)
• M13: 10,006,153 km (0.096 R)
• M14: 10,653,313 km (0.072 R)
• M15: 11,225,226 km (0.056 R)
• M16: 12,103,365 km (0.11 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: 365 - 11,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit