🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.74 AU - 1.08 AU

Year: 324 Days

Day: 41.9 Hours

Environment

Temp: 20 °C

Axial Tilt: 4.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.72 AU - 2.36 AU

Year: 1086 Days

Day: 30.3 Hours

Environment

Temp: -68 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.81 AU - 2.53 AU

Year: 1192 Days

Day: 39.5 Hours

Environment

Temp: -79 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.24 AU - 3.36 AU

Year: 2235 Days

Day: 33.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 44.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 37,334,298 km

• M1: 987,795 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.4

Radius: 6.3

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 12.08 AU - 12.98 AU

Year: 16534 Days

Day: 23.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,334,298 km

• M1: 174,132 km (0.115 R)
• M2: 371,900 km (0.075 R)
• M3: 660,475 km (0.097 R)
• M4: 904,918 km (0.083 R)
• M5: 1,542,653 km (0.119 R)
• M6: 3,921,708 km (0.116 R)
• M7: 4,172,883 km (0.118 R)
• M8: 5,815,468 km (0.106 R)
• M9: 8,957,472 km (0.082 R)
• M10: 9,936,590 km (0.081 R)
• M11: 14,042,004 km (0.094 R)
• M12: 16,692,430 km (0.1 R)
• M13: 22,958,187 km (0.093 R)
• M14: 26,877,352 km (0.075 R)
• M15: 27,237,883 km (0.119 R)
• M16: 28,060,970 km (0.062 R)
• M17: 30,531,429 km (0.04 R)
• M18: 31,319,810 km (0.091 R)
• M19: 31,518,925 km (0.054 R)
• M20: 33,143,109 km (0.103 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: 152 - 11,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit