🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.49 AU - 0.75 AU

Year: 315 Days

Day: 12.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.7

Radius: 11.9

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.57 AU - 0.87 AU

Year: 394 Days

Day: 7.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,363,052 km

• M1: 148,850 km (0.098 R)
• M2: 542,741 km (0.047 R)
• M3: 1,119,740 km (0.112 R)
• M4: 1,640,789 km (0.072 R)
• M5: 2,023,760 km (0.047 R)
• M6: 2,911,773 km (0.049 R)
• M7: 3,637,472 km (0.087 R)
• M8: 4,136,531 km (0.096 R)
• M9: 4,536,855 km (0.102 R)
• M10: 5,085,430 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.4

Radius: 13.9

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.65 AU - 0.97 AU

Year: 471 Days

Day: 9.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 23,363,052 km

• M1: 172,935 km (0.081 R)
• M2: 629,358 km (0.099 R)
• M3: 1,234,332 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.6

Radius: 14.1

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.11 AU - 3.35 AU

Year: 3748 Days

Day: 6.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 23,363,052 km

• M1: 179,817 km (0.049 R)
• M2: 712,086 km (0.111 R)
• M3: 1,738,626 km (0.039 R)
• M4: 2,491,702 km (0.057 R)
• M5: 2,936,905 km (0.104 R)
• M6: 3,686,391 km (0.084 R)
• M7: 4,291,215 km (0.073 R)
• M8: 5,208,998 km (0.101 R)
• M9: 5,755,329 km (0.029 R)
• M10: 6,781,271 km (0.101 R)
• M11: 7,370,238 km (0.074 R)
• M12: 8,474,420 km (0.103 R)
• M13: 9,158,681 km (0.111 R)
• M14: 11,826,310 km (0.108 R)
• M15: 12,774,162 km (0.105 R)
• M16: 13,481,760 km (0.084 R)
• M17: 14,924,033 km (0.091 R)
• M18: 16,085,062 km (0.105 R)
• M19: 16,687,792 km (0.089 R)
• M20: 18,231,343 km (0.102 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 19,983 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit