🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.5 AU - 0.7 AU

Year: 305 Days

Day: 19.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 13,755,733 km

• M1: 117,584 km (0.106 R)
• M2: 461,061 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.5

Radius: 12.7

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.96 AU - 0.98 AU

Year: 627 Days

Day: 12.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,755,733 km

• M1: 159,771 km (0.051 R)
• M2: 727,345 km (0.112 R)
• M3: 1,325,886 km (0.056 R)
• M4: 1,770,042 km (0.064 R)
• M5: 2,223,922 km (0.064 R)
• M6: 2,663,291 km (0.115 R)
• M7: 3,916,771 km (0.073 R)
• M8: 4,548,972 km (0.112 R)
• M9: 5,788,540 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.4

Radius: 8.5

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.26 AU - 1.34 AU

Year: 972 Days

Day: 14.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 13,755,733 km

• M1: 105,766 km (0.107 R)
• M2: 406,009 km (0.117 R)
• M3: 695,929 km (0.113 R)
• M4: 1,802,954 km (0.075 R)
• M5: 2,158,996 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.3

Radius: 8.2

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.58 AU - 2.28 AU

Year: 1759 Days

Day: 8.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 13,755,733 km

• M1: 102,923 km (0.039 R)
• M2: 373,695 km (0.09 R)
• M3: 822,040 km (0.077 R)
• M4: 1,565,243 km (0.118 R)
• M5: 1,923,829 km (0.073 R)
• M6: 2,738,539 km (0.103 R)
• M7: 3,021,727 km (0.12 R)
• M8: 3,435,366 km (0.033 R)
• M9: 4,226,888 km (0.075 R)
• M10: 4,765,141 km (0.111 R)
• M11: 5,155,891 km (0.064 R)
• M12: 5,435,339 km (0.111 R)
• M13: 5,885,180 km (0.099 R)
• M14: 6,433,008 km (0.116 R)
• M15: 6,782,767 km (0.105 R)
• M16: 7,145,243 km (0.118 R)
• M17: 7,740,942 km (0.112 R)
• M18: 8,136,927 km (0.081 R)
• M19: 9,248,888 km (0.061 R)
• M20: 9,534,022 km (0.114 R)
• M21: 9,825,139 km (0.044 R)
• M22: 11,155,513 km (0.048 R)
• M23: 11,808,358 km (0.104 R)
• M24: 12,219,752 km (0.12 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: 187 - 18,124 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit