🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.74 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.16 AU - 1.78 AU

Year: 629 Days

Day: 30.2 Hours

Environment

Temp: 6 °C

Axial Tilt: 41.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 60,088,307 km

• M1: 282,740 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.83 AU - 1.87 AU

Year: 888 Days

Day: 36.3 Hours

Environment

Temp: -53 °C

Axial Tilt: 82.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,088,307 km

• M1: 389,403 km (0.091 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.78 AU - 2.06 AU

Year: 939 Days

Day: 38.5 Hours

Environment

Temp: -45 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,088,307 km

• M1: 883,525 km (0.077 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.63 AU - 2.21 AU

Year: 939 Days

Day: 23.2 Hours

Environment

Temp: -40 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,088,307 km

• M1: 673,938 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.9

Radius: 11.7

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.26 AU - 10.36 AU

Year: 8459 Days

Day: 8.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,088,307 km

• M1: 145,559 km (0.032 R)
• M2: 520,002 km (0.094 R)
• M3: 1,421,778 km (0.095 R)
• M4: 1,868,777 km (0.118 R)
• M5: 2,988,068 km (0.072 R)
• M6: 4,068,314 km (0.118 R)
• M7: 4,952,886 km (0.059 R)
• M8: 7,580,722 km (0.114 R)
• M9: 8,827,022 km (0.092 R)
• M10: 10,056,567 km (0.106 R)
• M11: 11,289,852 km (0.047 R)
• M12: 12,736,912 km (0.099 R)
• M13: 15,134,218 km (0.087 R)
• M14: 18,479,825 km (0.083 R)
• M15: 18,929,965 km (0.112 R)
• M16: 22,628,772 km (0.107 R)
• M17: 23,144,287 km (0.114 R)
• M18: 25,469,337 km (0.075 R)
• M19: 31,955,900 km (0.097 R)
• M20: 32,605,006 km (0.116 R)
• M21: 38,604,927 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.2

Radius: 4.8

Gravity: 13.38 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 13.3 AU - 17.1 AU

Year: 20925 Days

Day: 15.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,088,307 km

• M1: 283,189 km (0.098 R)
• M2: 1,335,610 km (0.117 R)
• M3: 2,611,380 km (0.11 R)
• M4: 3,276,193 km (0.103 R)
• M5: 4,136,680 km (0.085 R)
• M6: 4,319,190 km (0.087 R)
• M7: 4,507,085 km (0.081 R)
• M8: 5,000,758 km (0.069 R)
• M9: 6,739,982 km (0.032 R)
• M10: 7,429,030 km (0.052 R)
• M11: 11,118,114 km (0.111 R)
• M12: 11,531,303 km (0.086 R)
• M13: 20,826,567 km (0.085 R)
• M14: 21,004,439 km (0.085 R)
• M15: 30,107,918 km (0.113 R)
• M16: 42,235,518 km (0.107 R)
• M17: 44,849,591 km (0.073 R)
• M18: 52,508,105 km (0.119 R)

Kuiper Belt

Range: 31.1 - 60.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 19,695 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit