🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.6 AU - 0.62 AU

Year: 313 Days

Day: 14.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 12.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,350,918 km

• M1: 307,723 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.58 AU - 0.68 AU

Year: 328 Days

Day: 35.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.4

Radius: 8.3

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.75 AU - 0.83 AU

Year: 461 Days

Day: 10.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,350,918 km

• M1: 103,223 km (0.097 R)
• M2: 367,263 km (0.103 R)
• M3: 693,386 km (0.086 R)
• M4: 979,268 km (0.072 R)
• M5: 1,250,638 km (0.038 R)
• M6: 1,579,155 km (0.12 R)
• M7: 1,950,906 km (0.093 R)
• M8: 2,292,887 km (0.105 R)
• M9: 2,835,179 km (0.111 R)
• M10: 3,673,825 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.8

Radius: 14.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.7 AU - 1.16 AU

Year: 588 Days

Day: 14.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,350,918 km

• M1: 176,675 km (0.086 R)
• M2: 620,532 km (0.087 R)
• M3: 1,150,856 km (0.119 R)
• M4: 3,350,693 km (0.117 R)
• M5: 3,977,658 km (0.118 R)
• M6: 4,510,077 km (0.088 R)
• M7: 5,073,163 km (0.117 R)
• M8: 6,053,478 km (0.075 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.5

Radius: 7.5

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 9.6 AU - 12.6 AU

Year: 24260 Days

Day: 16.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,350,918 km

• M1: 93,648 km (0.114 R)
• M2: 630,854 km (0.096 R)
• M3: 958,174 km (0.111 R)
• M4: 1,396,795 km (0.1 R)
• M5: 2,116,810 km (0.089 R)
• M6: 2,492,749 km (0.113 R)
• M7: 3,088,149 km (0.065 R)
• M8: 3,488,772 km (0.092 R)
• M9: 3,984,240 km (0.083 R)
• M10: 6,967,222 km (0.084 R)
• M11: 8,291,312 km (0.07 R)
• M12: 11,120,507 km (0.063 R)
• M13: 13,328,572 km (0.065 R)
• M14: 13,676,237 km (0.115 R)
• M15: 14,245,158 km (0.087 R)
• M16: 15,127,785 km (0.089 R)
• M17: 28,272,053 km (0.097 R)
• M18: 28,846,359 km (0.025 R)
• M19: 33,086,262 km (0.111 R)
• M20: 34,761,309 km (0.12 R)
• M21: 38,001,001 km (0.07 R)
• M22: 42,626,118 km (0.113 R)
• M23: 45,385,900 km (0.11 R)
• M24: 52,801,765 km (0.109 R)
• M25: 64,285,347 km (0.106 R)
• M26: 67,293,909 km (0.075 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 18,818 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit