🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.06 AU - 1.28 AU

Year: 462 Days

Day: 46.2 Hours

Environment

Temp: 12 °C

Axial Tilt: 31.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1 AU - 1.4 AU

Year: 480 Days

Day: 33.7 Hours

Environment

Temp: 21 °C

Axial Tilt: 42.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.24 AU - 1.3 AU

Year: 523 Days

Day: 19 Hours

Environment

Temp: 2 °C

Axial Tilt: 45.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.17 AU - 1.45 AU

Year: 548 Days

Day: 41 Hours

Environment

Temp: 6 °C

Axial Tilt: 1.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.24 AU - 1.72 AU

Year: 658 Days

Day: 22.2 Hours

Environment

Temp: -35 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.32 AU - 4.44 AU

Year: 3348 Days

Day: 19.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 14.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 365.4

Radius: 4.6

Gravity: 17.27 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 11.91 AU - 16.37 AU

Year: 19421 Days

Day: 22.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 60,511,189 km

• M1: 57,296 km (0.11 R)
• M2: 540,796 km (0.095 R)
• M3: 892,950 km (0.083 R)
• M4: 1,562,400 km (0.103 R)
• M5: 2,132,518 km (0.12 R)
• M6: 2,289,595 km (0.086 R)
• M7: 3,194,513 km (0.038 R)
• M8: 5,206,903 km (0.108 R)
• M9: 5,789,438 km (0.054 R)
• M10: 6,577,220 km (0.076 R)
• M11: 7,300,974 km (0.048 R)
• M12: 7,478,697 km (0.107 R)
• M13: 9,523,700 km (0.117 R)
• M14: 9,951,550 km (0.098 R)
• M15: 12,160,213 km (0.1 R)
• M16: 13,378,238 km (0.109 R)
• M17: 15,609,491 km (0.102 R)
• M18: 18,982,175 km (0.113 R)
• M19: 19,744,675 km (0.064 R)
• M20: 20,003,330 km (0.119 R)
• M21: 20,351,743 km (0.09 R)
• M22: 20,704,196 km (0.057 R)
• M23: 26,178,281 km (0.116 R)
• M24: 28,197,553 km (0.12 R)
• M25: 28,745,829 km (0.107 R)
• M26: 32,904,201 km (0.103 R)
• M27: 33,634,089 km (0.104 R)
• M28: 35,126,178 km (0.115 R)
• M29: 36,016,585 km (0.114 R)
• M30: 37,183,448 km (0.097 R)
• M31: 37,577,938 km (0.042 R)
• M32: 41,819,187 km (0.109 R)
• M33: 42,675,336 km (0.087 R)
• M34: 45,914,578 km (0.075 R)
• M35: 50,913,092 km (0.101 R)
• M36: 52,877,163 km (0.1 R)
• M37: 54,552,210 km (0.075 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 17,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit