🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.79 AU - 0.83 AU

Year: 278 Days

Day: 46.6 Hours

Environment

Temp: 143 °C

Axial Tilt: 1.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.94 AU - 2.42 AU

Year: 1226 Days

Day: 40.9 Hours

Environment

Temp: -80 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.97 AU - 2.89 AU

Year: 1442 Days

Day: 47.2 Hours

Environment

Temp: -103 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.32 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386

Radius: 13.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 8.18 AU - 8.24 AU

Year: 8958 Days

Day: 6.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,573,529 km

• M1: 169,195 km (0.06 R)
• M2: 805,435 km (0.096 R)
• M3: 1,380,489 km (0.079 R)
• M4: 2,275,384 km (0.099 R)
• M5: 3,418,012 km (0.115 R)
• M6: 3,898,969 km (0.081 R)
• M7: 6,228,956 km (0.038 R)
• M8: 6,951,215 km (0.119 R)
• M9: 8,278,896 km (0.046 R)
• M10: 13,221,161 km (0.064 R)
• M11: 14,769,798 km (0.06 R)
• M12: 15,557,131 km (0.066 R)
• M13: 19,131,174 km (0.067 R)
• M14: 22,030,381 km (0.097 R)
• M15: 23,139,051 km (0.037 R)
• M16: 26,512,034 km (0.098 R)
• M17: 27,313,729 km (0.077 R)
• M18: 30,683,720 km (0.074 R)
• M19: 32,266,914 km (0.083 R)
• M20: 32,874,431 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660.3

Radius: 4.7

Gravity: 29.89 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 13.76 AU - 20.04 AU

Year: 26456 Days

Day: 17.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 90,573,529 km

• M1: 58,493 km (0.055 R)
• M2: 210,933 km (0.095 R)
• M3: 622,327 km (0.036 R)
• M4: 1,263,354 km (0.077 R)
• M5: 2,502,324 km (0.095 R)
• M6: 3,873,089 km (0.113 R)
• M7: 5,103,980 km (0.088 R)
• M8: 5,594,661 km (0.104 R)
• M9: 7,927,640 km (0.034 R)
• M10: 8,142,762 km (0.062 R)
• M11: 9,759,167 km (0.107 R)
• M12: 10,577,617 km (0.076 R)
• M13: 10,838,366 km (0.099 R)
• M14: 11,170,323 km (0.078 R)
• M15: 11,372,879 km (0.066 R)
• M16: 14,390,717 km (0.114 R)
• M17: 17,266,287 km (0.12 R)
• M18: 22,907,772 km (0.069 R)
• M19: 24,573,545 km (0.079 R)
• M20: 33,843,077 km (0.103 R)
• M21: 39,013,330 km (0.09 R)
• M22: 56,831,483 km (0.109 R)
• M23: 57,030,747 km (0.095 R)
• M24: 63,225,745 km (0.072 R)
• M25: 64,516,176 km (0.101 R)
• M26: 65,824,260 km (0.11 R)
• M27: 77,909,075 km (0.081 R)
• M28: 79,392,039 km (0.08 R)
• M29: 82,159,151 km (0.105 R)
• M30: 86,297,925 km (0.067 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 18,720 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit