🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.59 AU - 0.99 AU

Year: 258 Days

Day: 19.4 Hours

Environment

Temp: 131 °C

Axial Tilt: 39.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 66,465,239 km

• M1: 59,241 km (0.12 R)
• M2: 200,910 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.91 AU - 1.31 AU

Year: 429 Days

Day: 29.5 Hours

Environment

Temp: 19 °C

Axial Tilt: 31.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.21 AU - 1.35 AU

Year: 532 Days

Day: 34.5 Hours

Environment

Temp: -12 °C

Axial Tilt: 174 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 66,465,239 km

• M1: 728,542 km (0.118 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.27 AU - 2.33 AU

Year: 1280 Days

Day: 26.6 Hours

Environment

Temp: -87 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,465,239 km

• M1: 76,445 km (0.035 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.39 AU - 4.95 AU

Year: 3126 Days

Day: 34.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 17.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.5

Radius: 7

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 17.18 AU - 18.46 AU

Year: 27614 Days

Day: 15.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,465,239 km

• M1: 239,955 km (0.081 R)
• M2: 1,011,282 km (0.114 R)
• M3: 4,302,285 km (0.066 R)
• M4: 4,471,331 km (0.113 R)
• M5: 6,101,050 km (0.112 R)
• M6: 7,715,361 km (0.065 R)
• M7: 9,027,484 km (0.087 R)
• M8: 12,303,378 km (0.035 R)
• M9: 17,352,007 km (0.115 R)
• M10: 19,803,018 km (0.109 R)
• M11: 20,459,603 km (0.111 R)
• M12: 22,493,685 km (0.1 R)
• M13: 23,507,660 km (0.117 R)
• M14: 23,903,645 km (0.069 R)
• M15: 31,142,537 km (0.079 R)
• M16: 35,363,141 km (0.118 R)
• M17: 38,326,226 km (0.079 R)
• M18: 39,545,000 km (0.068 R)
• M19: 47,595,011 km (0.118 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 281 - 11,884 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit