🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.65 AU - 0.93 AU

Year: 258 Days

Day: 18.9 Hours

Environment

Temp: 179 °C

Axial Tilt: 11 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,277,856 km

• M1: 76,744 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.33 AU - 1.95 AU

Year: 771 Days

Day: 42.9 Hours

Environment

Temp: -42 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 56,277,856 km

• M1: 121,922 km (0.099 R)
• M2: 1,575,116 km (0.1 R)

Planet 3 - Ice Giant

Semi-Major Axis: 14.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.3

Radius: 4

Gravity: 42.64 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 10.82 AU - 17.22 AU

Year: 19271 Days

Day: 18.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,277,856 km

• M1: 49,816 km (0.103 R)
• M2: 191,036 km (0.106 R)
• M3: 735,872 km (0.103 R)
• M4: 1,292,526 km (0.115 R)
• M5: 3,711,523 km (0.106 R)
• M6: 5,118,192 km (0.108 R)
• M7: 5,577,457 km (0.096 R)
• M8: 5,776,722 km (0.051 R)
• M9: 11,393,673 km (0.084 R)
• M10: 13,199,170 km (0.107 R)
• M11: 16,617,631 km (0.048 R)
• M12: 17,705,058 km (0.064 R)
• M13: 18,839,009 km (0.113 R)
• M14: 19,017,779 km (0.082 R)
• M15: 28,396,967 km (0.086 R)
• M16: 37,412,483 km (0.097 R)
• M17: 37,978,561 km (0.051 R)
• M18: 38,982,961 km (0.077 R)
• M19: 57,546,860 km (0.098 R)
• M20: 60,214,938 km (0.119 R)
• M21: 64,572,126 km (0.071 R)

Planet 4 - Ice Giant

Semi-Major Axis: 19.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 109.1

Radius: 4.5

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 15.12 AU - 24.1 AU

Year: 31878 Days

Day: 18.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,277,856 km

• M1: 55,950 km (0.073 R)
• M2: 230,979 km (0.049 R)
• M3: 1,528,890 km (0.118 R)
• M4: 2,265,660 km (0.101 R)
• M5: 3,140,957 km (0.043 R)
• M6: 8,284,730 km (0.107 R)
• M7: 8,958,220 km (0.069 R)
• M8: 20,953,426 km (0.103 R)
• M9: 21,128,156 km (0.065 R)
• M10: 21,392,346 km (0.074 R)
• M11: 22,470,947 km (0.114 R)
• M12: 23,303,309 km (0.109 R)
• M13: 26,838,905 km (0.115 R)
• M14: 55,105,423 km (0.072 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 14,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit