🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.61 AU - 0.63 AU

Year: 176 Days

Day: 44.8 Hours

Environment

Temp: 187 °C

Axial Tilt: 34.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.7 AU - 0.76 AU

Year: 224 Days

Day: 27.1 Hours

Environment

Temp: 151 °C

Axial Tilt: 33.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.65 AU - 0.87 AU

Year: 238 Days

Day: 21.4 Hours

Environment

Temp: 172 °C

Axial Tilt: 44.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.72 AU - 0.86 AU

Year: 253 Days

Day: 39.1 Hours

Environment

Temp: 136 °C

Axial Tilt: 29 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 43,354,616 km

• M1: 234,869 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.92 AU - 1.16 AU

Year: 382 Days

Day: 27.8 Hours

Environment

Temp: 30 °C

Axial Tilt: 12.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.01 AU - 2.99 AU

Year: 1423 Days

Day: 29.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,354,616 km

• M1: 875,148 km (0.062 R)

Asteroid Belt

Center: 7.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 11.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.5

Radius: 10.1

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 10.62 AU - 12.68 AU

Year: 14311 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,354,616 km

• M1: 205,996 km (0.12 R)
• M2: 686,654 km (0.11 R)
• M3: 1,014,872 km (0.114 R)
• M4: 1,400,984 km (0.088 R)
• M5: 3,538,738 km (0.039 R)
• M6: 4,117,532 km (0.095 R)
• M7: 6,380,948 km (0.115 R)
• M8: 7,317,879 km (0.096 R)
• M9: 10,034,576 km (0.088 R)
• M10: 10,730,356 km (0.115 R)
• M11: 11,089,989 km (0.088 R)
• M12: 14,326,689 km (0.077 R)
• M13: 16,463,246 km (0.073 R)
• M14: 18,289,985 km (0.062 R)
• M15: 19,252,348 km (0.11 R)
• M16: 19,631,280 km (0.117 R)
• M17: 20,326,012 km (0.105 R)
• M18: 26,393,552 km (0.073 R)
• M19: 31,850,135 km (0.08 R)
• M20: 33,787,577 km (0.096 R)
• M21: 38,611,360 km (0.094 R)
• M22: 42,453,183 km (0.102 R)

Kuiper Belt

Range: 30.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 15,158 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit