🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.05 AU - 1.11 AU

Year: 427 Days

Day: 16.1 Hours

Environment

Temp: 4 °C

Axial Tilt: 20.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.92 AU - 1.36 AU

Year: 464 Days

Day: 36.3 Hours

Environment

Temp: -17 °C

Axial Tilt: 11.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.14 AU - 1.6 AU

Year: 611 Days

Day: 14.9 Hours

Environment

Temp: -43 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.54 AU - 3.34 AU

Year: 1920 Days

Day: 25.5 Hours

Environment

Temp: -102 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,595,369 km

• M1: 36,053 km (0.105 R)
• M2: 1,408,165 km (0.109 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.87 AU - 3.89 AU

Year: 2366 Days

Day: 30 Hours

Environment

Temp: -113 °C

Axial Tilt: 44.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,595,369 km

• M1: 628,909 km (0.083 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.2 AU - 3.78 AU

Year: 2483 Days

Day: 42.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 15.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97

Radius: 4.1

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 14.98 AU - 16.56 AU

Year: 23848 Days

Day: 24.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,595,369 km

• M1: 51,162 km (0.117 R)
• M2: 302,188 km (0.113 R)
• M3: 446,101 km (0.084 R)
• M4: 698,024 km (0.084 R)
• M5: 1,028,785 km (0.085 R)
• M6: 1,327,232 km (0.09 R)
• M7: 1,801,757 km (0.115 R)
• M8: 1,977,235 km (0.091 R)
• M9: 2,514,591 km (0.106 R)
• M10: 2,838,171 km (0.075 R)
• M11: 3,076,331 km (0.041 R)
• M12: 3,211,717 km (0.06 R)
• M13: 5,420,978 km (0.115 R)
• M14: 8,042,531 km (0.076 R)
• M15: 9,528,936 km (0.102 R)
• M16: 9,915,197 km (0.112 R)
• M17: 10,311,632 km (0.113 R)
• M18: 11,189,173 km (0.102 R)
• M19: 12,915,682 km (0.041 R)
• M20: 14,057,114 km (0.12 R)
• M21: 20,705,542 km (0.111 R)
• M22: 27,600,358 km (0.078 R)
• M23: 28,980,848 km (0.099 R)
• M24: 31,242,169 km (0.097 R)
• M25: 42,362,078 km (0.045 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: 378 - 20,362 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit