🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.5 AU - 0.7 AU

Year: 174 Days

Day: 33.7 Hours

Environment

Temp: 206 °C

Axial Tilt: 26.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.91 AU - 1.13 AU

Year: 386 Days

Day: 14.8 Hours

Environment

Temp: 30 °C

Axial Tilt: 14.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.8

Radius: 10.5

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.62 AU - 5.52 AU

Year: 3661 Days

Day: 6.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,968,277 km

• M1: 130,599 km (0.11 R)
• M2: 714,031 km (0.075 R)
• M3: 1,333,515 km (0.09 R)
• M4: 1,852,470 km (0.088 R)
• M5: 2,517,583 km (0.084 R)
• M6: 3,876,679 km (0.108 R)
• M7: 4,298,844 km (0.096 R)
• M8: 4,989,687 km (0.113 R)
• M9: 5,914,651 km (0.114 R)
• M10: 6,360,752 km (0.081 R)
• M11: 6,829,292 km (0.087 R)
• M12: 8,237,607 km (0.116 R)
• M13: 10,298,617 km (0.053 R)
• M14: 11,363,903 km (0.06 R)
• M15: 11,923,249 km (0.106 R)
• M16: 14,297,069 km (0.109 R)
• M17: 17,872,757 km (0.106 R)
• M18: 20,145,298 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.7

Radius: 13.5

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.33 AU - 5.39 AU

Year: 4015 Days

Day: 5.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,968,277 km

• M1: 167,998 km (0.1 R)
• M2: 610,958 km (0.108 R)
• M3: 1,037,312 km (0.077 R)
• M4: 1,485,357 km (0.102 R)
• M5: 2,079,410 km (0.036 R)
• M6: 2,630,379 km (0.11 R)
• M7: 3,753,859 km (0.093 R)
• M8: 5,333,164 km (0.091 R)
• M9: 5,768,643 km (0.081 R)
• M10: 6,588,589 km (0.103 R)
• M11: 7,418,110 km (0.048 R)
• M12: 8,460,657 km (0.066 R)
• M13: 8,979,612 km (0.118 R)
• M14: 10,204,669 km (0.116 R)
• M15: 12,792,114 km (0.114 R)
• M16: 15,134,517 km (0.088 R)
• M17: 16,068,606 km (0.059 R)
• M18: 22,149,012 km (0.091 R)
• M19: 24,600,023 km (0.118 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 17,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit