🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.78 AU - 0.84 AU

Year: 221 Days

Day: 37.8 Hours

Environment

Temp: 236 °C

Axial Tilt: 6.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.8 AU - 1.32 AU

Year: 331 Days

Day: 47 Hours

Environment

Temp: 191 °C

Axial Tilt: 34.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,922,994 km

• M1: 186,848 km (0.063 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.19 AU - 1.23 AU

Year: 404 Days

Day: 16.3 Hours

Environment

Temp: 129 °C

Axial Tilt: 19 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.26 AU - 1.64 AU

Year: 530 Days

Day: 36.9 Hours

Environment

Temp: 124 °C

Axial Tilt: 26.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.56 AU - 3.74 AU

Year: 1696 Days

Day: 37.8 Hours

Environment

Temp: -39 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 4.76 AU - 6.46 AU

Year: 4030 Days

Day: 43.8 Hours

Environment

Temp: -111 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 22.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.6

Radius: 7.4

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 21.37 AU - 24.29 AU

Year: 33088 Days

Day: 15.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,922,994 km

• M1: 92,003 km (0.115 R)
• M2: 378,183 km (0.034 R)
• M3: 706,700 km (0.045 R)
• M4: 1,208,152 km (0.119 R)
• M5: 1,457,981 km (0.101 R)
• M6: 1,833,472 km (0.071 R)
• M7: 3,767,024 km (0.113 R)
• M8: 5,663,177 km (0.062 R)
• M9: 5,990,048 km (0.105 R)
• M10: 15,473,656 km (0.112 R)
• M11: 18,580,804 km (0.115 R)
• M12: 19,764,422 km (0.099 R)
• M13: 27,823,708 km (0.049 R)
• M14: 31,861,205 km (0.095 R)
• M15: 35,717,389 km (0.072 R)
• M16: 36,133,271 km (0.06 R)
• M17: 37,542,782 km (0.119 R)
• M18: 46,283,636 km (0.113 R)
• M19: 66,800,536 km (0.079 R)
• M20: 71,522,892 km (0.11 R)

Kuiper Belt

Range: 36.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 441 - 14,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit