🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.72 AU - 0.98 AU

Year: 297 Days

Day: 30.8 Hours

Environment

Temp: 45 °C

Axial Tilt: 5.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.74 AU - 1.04 AU

Year: 318 Days

Day: 38.5 Hours

Environment

Temp: 29 °C

Axial Tilt: 37.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 46,961,849 km

• M1: 69,713 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.83 AU - 1.01 AU

Year: 334 Days

Day: 22.2 Hours

Environment

Temp: 28 °C

Axial Tilt: 23.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.86 AU - 1.02 AU

Year: 345 Days

Day: 37.7 Hours

Environment

Temp: 32 °C

Axial Tilt: 36.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.64 AU - 2.04 AU

Year: 945 Days

Day: 34.6 Hours

Environment

Temp: -74 °C

Axial Tilt: 5.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.08 AU - 3.3 AU

Year: 1671 Days

Day: 17.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.3 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.4

Radius: 10.4

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 6.28 AU - 9.54 AU

Year: 8426 Days

Day: 8.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 46,961,849 km

• M1: 129,402 km (0.081 R)
• M2: 601,234 km (0.045 R)
• M3: 1,406,519 km (0.064 R)
• M4: 1,766,900 km (0.061 R)
• M5: 2,886,042 km (0.096 R)
• M6: 3,852,893 km (0.119 R)
• M7: 4,868,513 km (0.037 R)
• M8: 5,439,229 km (0.092 R)
• M9: 5,983,466 km (0.12 R)
• M10: 8,178,964 km (0.111 R)
• M11: 9,796,716 km (0.111 R)
• M12: 10,500,125 km (0.112 R)
• M13: 11,290,899 km (0.102 R)
• M14: 17,609,465 km (0.03 R)
• M15: 18,273,230 km (0.092 R)
• M16: 18,953,601 km (0.086 R)
• M17: 19,338,666 km (0.092 R)
• M18: 21,014,013 km (0.068 R)
• M19: 21,343,727 km (0.054 R)
• M20: 23,660,848 km (0.093 R)
• M21: 26,810,930 km (0.082 R)
• M22: 28,687,785 km (0.034 R)
• M23: 29,400,918 km (0.079 R)
• M24: 30,335,007 km (0.1 R)
• M25: 31,611,227 km (0.116 R)
• M26: 34,842,391 km (0.111 R)
• M27: 35,537,423 km (0.088 R)
• M28: 43,004,451 km (0.109 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 18,304 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit