🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.78 AU - 0.78 AU

Year: 249 Days

Day: 17.5 Hours

Environment

Temp: 171 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.24 AU - 1.5 AU

Year: 580 Days

Day: 29.6 Hours

Environment

Temp: -19 °C

Axial Tilt: 131.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 48,350,316 km

• M1: 112,049 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.55 AU - 2.03 AU

Year: 866 Days

Day: 14.2 Hours

Environment

Temp: -42 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.1

Radius: 12.6

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.7 AU - 8.7 AU

Year: 6987 Days

Day: 9.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,350,316 km

• M1: 156,629 km (0.05 R)
• M2: 554,559 km (0.044 R)
• M3: 1,124,826 km (0.059 R)
• M4: 1,589,477 km (0.111 R)
• M5: 2,152,564 km (0.097 R)
• M6: 3,056,883 km (0.083 R)
• M7: 3,618,772 km (0.066 R)
• M8: 4,423,908 km (0.041 R)
• M9: 5,520,461 km (0.025 R)
• M10: 6,824,356 km (0.093 R)
• M11: 7,864,061 km (0.098 R)
• M12: 10,947,273 km (0.085 R)
• M13: 15,107,440 km (0.057 R)
• M14: 16,742,545 km (0.062 R)
• M15: 17,312,962 km (0.093 R)
• M16: 17,830,869 km (0.087 R)
• M17: 21,825,581 km (0.047 R)
• M18: 25,873,849 km (0.041 R)
• M19: 30,024,891 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 12.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.7

Radius: 9.2

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 10.45 AU - 14.07 AU

Year: 15525 Days

Day: 11 Hours

Environment

Temp: -178 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,350,316 km

• M1: 117,434 km (0.079 R)
• M2: 461,210 km (0.105 R)
• M3: 981,960 km (0.094 R)
• M4: 1,315,414 km (0.12 R)
• M5: 4,364,967 km (0.089 R)
• M6: 5,058,802 km (0.115 R)
• M7: 5,415,593 km (0.09 R)
• M8: 5,929,461 km (0.099 R)
• M9: 14,299,612 km (0.042 R)
• M10: 19,345,548 km (0.106 R)
• M11: 21,038,996 km (0.069 R)
• M12: 23,896,614 km (0.097 R)
• M13: 25,844,079 km (0.065 R)
• M14: 26,322,793 km (0.058 R)
• M15: 27,894,917 km (0.106 R)
• M16: 28,398,762 km (0.086 R)
• M17: 32,097,420 km (0.115 R)
• M18: 41,210,025 km (0.043 R)
• M19: 44,274,387 km (0.096 R)
• M20: 44,684,884 km (0.044 R)
• M21: 47,773,781 km (0.111 R)

Kuiper Belt

Range: 30.3 - 48.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 10,436 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit