🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.6 AU - 0.62 AU

Year: 174 Days

Day: 42.6 Hours

Environment

Temp: 155 °C

Axial Tilt: 35.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.17 AU - 1.63 AU

Year: 605 Days

Day: 14.9 Hours

Environment

Temp: -23 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.96 AU - 4.08 AU

Year: 2944 Days

Day: 24.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.9

Radius: 14.5

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 7.09 AU - 11.41 AU

Year: 10275 Days

Day: 7.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,129,611 km

• M1: 184,155 km (0.118 R)
• M2: 679,773 km (0.1 R)
• M3: 1,186,012 km (0.053 R)
• M4: 2,980,438 km (0.053 R)
• M5: 4,294,656 km (0.118 R)
• M6: 5,056,258 km (0.119 R)
• M7: 5,699,978 km (0.114 R)
• M8: 9,038,404 km (0.082 R)
• M9: 10,032,482 km (0.094 R)
• M10: 10,556,224 km (0.107 R)
• M11: 11,190,370 km (0.082 R)
• M12: 12,336,738 km (0.117 R)
• M13: 14,039,162 km (0.117 R)
• M14: 20,221,144 km (0.077 R)
• M15: 21,919,828 km (0.038 R)
• M16: 23,179,442 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 928.3

Radius: 4.1

Gravity: 55.22 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 13.22 AU - 13.54 AU

Year: 17876 Days

Day: 24.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 78,129,611 km

• M1: 51,013 km (0.078 R)
• M2: 309,219 km (0.11 R)
• M3: 537,356 km (0.048 R)
• M4: 1,974,991 km (0.076 R)
• M5: 2,585,500 km (0.109 R)
• M6: 3,341,568 km (0.085 R)
• M7: 7,601,367 km (0.071 R)
• M8: 8,794,260 km (0.094 R)
• M9: 9,869,420 km (0.119 R)
• M10: 10,166,372 km (0.076 R)
• M11: 11,092,981 km (0.071 R)
• M12: 11,220,588 km (0.105 R)
• M13: 16,250,368 km (0.096 R)
• M14: 16,664,305 km (0.1 R)
• M15: 17,170,245 km (0.085 R)
• M16: 19,113,222 km (0.115 R)
• M17: 24,601,370 km (0.104 R)
• M18: 25,257,057 km (0.109 R)
• M19: 27,643,443 km (0.094 R)
• M20: 29,928,400 km (0.104 R)
• M21: 34,596,901 km (0.084 R)
• M22: 35,143,831 km (0.086 R)
• M23: 37,103,413 km (0.055 R)
• M24: 41,238,598 km (0.095 R)
• M25: 49,540,382 km (0.12 R)
• M26: 55,279,704 km (0.118 R)
• M27: 57,924,296 km (0.077 R)
• M28: 61,247,313 km (0.086 R)
• M29: 65,733,304 km (0.112 R)
• M30: 71,752,973 km (0.088 R)
• M31: 78,129,582 km (0.114 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: 503 - 16,415 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit