🌌 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: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.46 AU - 0.62 AU

Year: 260 Days

Day: 29.6 Hours

Environment

Temp: -121 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 22,341,972 km

• M1: 14,810 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.1

Radius: 8.2

Gravity: 12.94 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.55 AU - 0.85 AU

Year: 384 Days

Day: 9.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,341,972 km

• M1: 102,026 km (0.096 R)
• M2: 401,072 km (0.064 R)
• M3: 656,435 km (0.108 R)
• M4: 1,288,935 km (0.095 R)
• M5: 1,704,518 km (0.119 R)
• M6: 2,216,292 km (0.119 R)
• M7: 2,661,945 km (0.054 R)
• M8: 3,234,904 km (0.052 R)
• M9: 3,669,187 km (0.104 R)
• M10: 3,953,423 km (0.057 R)
• M11: 4,479,110 km (0.118 R)
• M12: 4,804,336 km (0.097 R)
• M13: 5,082,139 km (0.098 R)
• M14: 5,337,951 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.7

Radius: 13.5

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.65 AU - 1.01 AU

Year: 496 Days

Day: 5 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,341,972 km

• M1: 167,998 km (0.101 R)
• M2: 626,366 km (0.037 R)
• M3: 1,059,153 km (0.109 R)
• M4: 1,636,302 km (0.063 R)
• M5: 2,110,078 km (0.037 R)
• M6: 2,566,800 km (0.073 R)
• M7: 3,403,202 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.9

Radius: 10.3

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.28 AU - 4.56 AU

Year: 5091 Days

Day: 6.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,341,972 km

• M1: 128,056 km (0.111 R)
• M2: 1,057,208 km (0.069 R)
• M3: 1,452,446 km (0.066 R)
• M4: 2,052,333 km (0.081 R)
• M5: 3,180,600 km (0.054 R)
• M6: 4,307,671 km (0.108 R)
• M7: 4,753,472 km (0.057 R)
• M8: 5,360,541 km (0.08 R)
• M9: 6,278,623 km (0.03 R)
• M10: 10,143,184 km (0.06 R)
• M11: 13,458,273 km (0.042 R)
• M12: 14,107,079 km (0.067 R)
• M13: 18,205,462 km (0.083 R)
• M14: 21,586,973 km (0.056 R)
• M15: 22,754,584 km (0.051 R)
• M16: 23,747,465 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.7

Radius: 14.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.82 AU - 4.94 AU

Year: 7072 Days

Day: 13.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,341,972 km

• M1: 184,305 km (0.037 R)
• M2: 730,038 km (0.115 R)
• M3: 1,235,230 km (0.07 R)
• M4: 1,933,552 km (0.041 R)
• M5: 5,115,200 km (0.091 R)
• M6: 5,992,592 km (0.082 R)
• M7: 6,759,281 km (0.081 R)
• M8: 11,359,565 km (0.041 R)
• M9: 12,134,930 km (0.067 R)
• M10: 13,505,696 km (0.085 R)
• M11: 14,081,947 km (0.082 R)
• M12: 16,771,716 km (0.058 R)
• M13: 17,494,424 km (0.101 R)
• M14: 20,911,538 km (0.053 R)
• M15: 22,275,572 km (0.074 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 11,010 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit