🌌 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: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.65 AU - 0.95 AU

Year: 271 Days

Day: 35.4 Hours

Environment

Temp: 154 °C

Axial Tilt: 38.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.17 AU - 1.49 AU

Year: 581 Days

Day: 24.9 Hours

Environment

Temp: -29 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,811,400 km

• M1: 39,195 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 11.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.7

Radius: 10.3

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 10.55 AU - 11.85 AU

Year: 14196 Days

Day: 13.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,811,400 km

• M1: 128,056 km (0.072 R)
• M2: 584,928 km (0.096 R)
• M3: 1,069,924 km (0.09 R)
• M4: 1,425,817 km (0.106 R)
• M5: 2,112,322 km (0.116 R)
• M6: 3,427,736 km (0.104 R)
• M7: 5,559,057 km (0.116 R)
• M8: 9,201,466 km (0.105 R)
• M9: 10,990,956 km (0.1 R)
• M10: 14,579,958 km (0.116 R)
• M11: 17,662,422 km (0.112 R)
• M12: 21,323,381 km (0.091 R)
• M13: 22,795,574 km (0.075 R)
• M14: 24,706,388 km (0.119 R)
• M15: 30,859,049 km (0.111 R)
• M16: 32,853,039 km (0.054 R)
• M17: 36,607,497 km (0.056 R)
• M18: 39,221,121 km (0.061 R)
• M19: 42,089,959 km (0.054 R)
• M20: 46,365,915 km (0.111 R)
• M21: 50,168,394 km (0.111 R)

Planet 4 - Ice Giant

Semi-Major Axis: 12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 369.6

Radius: 3.1

Gravity: 38.46 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 9.74 AU - 14.26 AU

Year: 15744 Days

Day: 23.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,811,400 km

• M1: 38,596 km (0.047 R)
• M2: 149,299 km (0.099 R)
• M3: 493,224 km (0.038 R)
• M4: 1,160,131 km (0.111 R)
• M5: 1,449,155 km (0.114 R)
• M6: 1,688,062 km (0.091 R)
• M7: 2,224,520 km (0.112 R)
• M8: 2,340,159 km (0.096 R)
• M9: 2,521,323 km (0.073 R)
• M10: 3,050,151 km (0.055 R)
• M11: 3,702,398 km (0.113 R)
• M12: 4,147,152 km (0.119 R)
• M13: 4,442,608 km (0.078 R)
• M14: 5,623,234 km (0.104 R)
• M15: 5,948,011 km (0.073 R)
• M16: 6,323,502 km (0.103 R)
• M17: 7,204,933 km (0.119 R)
• M18: 8,534,409 km (0.043 R)
• M19: 8,866,666 km (0.118 R)
• M20: 11,323,811 km (0.083 R)
• M21: 12,615,738 km (0.094 R)
• M22: 15,004,517 km (0.096 R)
• M23: 20,399,764 km (0.093 R)
• M24: 22,036,066 km (0.093 R)
• M25: 35,879,254 km (0.043 R)
• M26: 38,509,933 km (0.094 R)
• M27: 46,728,540 km (0.118 R)
• M28: 47,757,475 km (0.039 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 356 - 13,494 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit