🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.44 AU - 0.68 AU

Year: 155 Days

Day: 29.1 Hours

Environment

Temp: 209 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.1 AU - 1.3 AU

Year: 488 Days

Day: 35.4 Hours

Environment

Temp: -6 °C

Axial Tilt: 4.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 38,615,215 km

• M1: 28,124 km (0.118 R)
• M2: 819,348 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.21 AU - 1.33 AU

Year: 531 Days

Day: 37.5 Hours

Environment

Temp: -13 °C

Axial Tilt: 17.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 38,615,215 km

• M1: 203,304 km (0.074 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.29 AU - 3.39 AU

Year: 1775 Days

Day: 36.2 Hours

Environment

Temp: -111 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.34 AU - 3.52 AU

Year: 1860 Days

Day: 12.1 Hours

Environment

Temp: -98 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 4.52 AU - 4.54 AU

Year: 3576 Days

Day: 15.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.6

Radius: 11.5

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 6.38 AU - 6.86 AU

Year: 6317 Days

Day: 8 Hours

Environment

Temp: -167 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,615,215 km

• M1: 143,016 km (0.09 R)
• M2: 525,388 km (0.102 R)
• M3: 1,202,617 km (0.072 R)
• M4: 2,155,705 km (0.101 R)
• M5: 2,642,347 km (0.083 R)
• M6: 3,510,464 km (0.111 R)
• M7: 3,961,501 km (0.062 R)
• M8: 4,532,067 km (0.052 R)
• M9: 5,678,286 km (0.099 R)
• M10: 7,008,511 km (0.119 R)
• M11: 7,884,705 km (0.055 R)
• M12: 9,580,846 km (0.113 R)
• M13: 11,405,940 km (0.104 R)
• M14: 12,508,776 km (0.06 R)
• M15: 17,366,966 km (0.064 R)
• M16: 20,664,552 km (0.079 R)
• M17: 21,903,223 km (0.072 R)
• M18: 26,539,859 km (0.1 R)
• M19: 31,691,262 km (0.064 R)
• M20: 35,801,314 km (0.108 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 12,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit