🌌 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: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.57 AU - 0.63 AU

Year: 300 Days

Day: 27.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.4

Radius: 14.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.64 AU - 0.84 AU

Year: 411 Days

Day: 6.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,777,787 km

• M1: 185,352 km (0.045 R)
• M2: 730,187 km (0.085 R)
• M3: 1,327,831 km (0.085 R)
• M4: 1,799,363 km (0.116 R)
• M5: 2,318,617 km (0.078 R)
• M6: 3,380,613 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.5

Radius: 12

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.77 AU - 1.85 AU

Year: 1572 Days

Day: 11.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,777,787 km

• M1: 150,047 km (0.119 R)
• M2: 650,452 km (0.087 R)
• M3: 1,385,875 km (0.032 R)
• M4: 1,830,928 km (0.069 R)
• M5: 2,622,301 km (0.084 R)
• M6: 3,422,051 km (0.069 R)
• M7: 3,828,808 km (0.086 R)
• M8: 4,918,928 km (0.087 R)
• M9: 5,460,771 km (0.1 R)
• M10: 6,019,070 km (0.073 R)
• M11: 6,492,847 km (0.111 R)
• M12: 7,569,353 km (0.105 R)
• M13: 12,586,716 km (0.099 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.5

Radius: 5

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 7.58 AU - 11.4 AU

Year: 18876 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 53,777,787 km

• M1: 131,796 km (0.036 R)
• M2: 466,596 km (0.084 R)
• M3: 852,109 km (0.065 R)
• M4: 1,203,814 km (0.084 R)
• M5: 1,413,401 km (0.031 R)
• M6: 2,027,799 km (0.114 R)
• M7: 2,424,981 km (0.096 R)
• M8: 2,674,212 km (0.034 R)
• M9: 2,872,279 km (0.09 R)
• M10: 3,103,707 km (0.077 R)
• M11: 4,041,835 km (0.087 R)
• M12: 5,022,599 km (0.061 R)
• M13: 5,928,713 km (0.039 R)
• M14: 6,577,220 km (0.073 R)
• M15: 6,736,392 km (0.032 R)
• M16: 8,333,948 km (0.053 R)
• M17: 9,647,866 km (0.073 R)
• M18: 11,549,105 km (0.072 R)
• M19: 14,610,476 km (0.103 R)
• M20: 18,250,791 km (0.115 R)
• M21: 21,303,784 km (0.109 R)
• M22: 22,362,787 km (0.11 R)
• M23: 23,922,345 km (0.079 R)
• M24: 25,066,021 km (0.076 R)
• M25: 29,140,768 km (0.114 R)
• M26: 35,556,123 km (0.114 R)
• M27: 49,543,224 km (0.093 R)
• M28: 52,182,430 km (0.102 R)
• M29: 52,340,405 km (0.11 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 14,797 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit