🌌 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: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.45 AU - 0.73 AU

Year: 172 Days

Day: 42.2 Hours

Environment

Temp: 208 °C

Axial Tilt: 28.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.57 AU - 0.67 AU

Year: 185 Days

Day: 37.1 Hours

Environment

Temp: 161 °C

Axial Tilt: 49.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 43,832,225 km

• M1: 42,935 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.55 AU - 0.77 AU

Year: 203 Days

Day: 16.6 Hours

Environment

Temp: 157 °C

Axial Tilt: 38.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.76 AU - 1.88 AU

Year: 930 Days

Day: 24.3 Hours

Environment

Temp: -62 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.97 AU - 2.79 AU

Year: 1391 Days

Day: 38 Hours

Environment

Temp: -93 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,832,225 km

• M1: 987,047 km (0.095 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.19 AU - 3.13 AU

Year: 1643 Days

Day: 13.6 Hours

Environment

Temp: -100 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,832,225 km

• M1: 20,495 km (0.089 R)

Asteroid Belt

Center: 9.17 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 15.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.9

Radius: 5.6

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 14.71 AU - 16.63 AU

Year: 23494 Days

Day: 21.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,832,225 km

• M1: 69,713 km (0.101 R)
• M2: 245,490 km (0.099 R)
• M3: 1,299,108 km (0.073 R)
• M4: 1,820,157 km (0.117 R)
• M5: 2,250,550 km (0.072 R)
• M6: 2,645,638 km (0.106 R)
• M7: 3,874,286 km (0.045 R)
• M8: 4,469,685 km (0.118 R)
• M9: 7,430,377 km (0.079 R)
• M10: 8,345,916 km (0.116 R)
• M11: 8,830,912 km (0.119 R)
• M12: 9,475,230 km (0.105 R)
• M13: 10,856,766 km (0.057 R)
• M14: 11,064,558 km (0.099 R)
• M15: 11,274,892 km (0.106 R)
• M16: 15,209,167 km (0.108 R)
• M17: 15,600,814 km (0.086 R)
• M18: 16,608,954 km (0.093 R)
• M19: 17,446,253 km (0.111 R)
• M20: 17,947,406 km (0.103 R)
• M21: 19,129,080 km (0.03 R)
• M22: 19,662,097 km (0.106 R)
• M23: 26,945,269 km (0.084 R)
• M24: 31,866,291 km (0.101 R)
• M25: 39,764,012 km (0.053 R)
• M26: 42,661,274 km (0.093 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: 521 - 18,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit