🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.44 AU - 0.64 AU

Year: 181 Days

Day: 24.1 Hours

Environment

Temp: 19 °C

Axial Tilt: 0.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.21 AU - 2.01 AU

Year: 933 Days

Day: 15.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.8

Radius: 12

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 4.58 AU - 5.14 AU

Year: 4892 Days

Day: 5.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,004,839 km

• M1: 149,299 km (0.072 R)
• M2: 782,247 km (0.084 R)
• M3: 1,418,487 km (0.057 R)
• M4: 1,989,053 km (0.104 R)
• M5: 2,893,223 km (0.067 R)
• M6: 4,206,991 km (0.088 R)
• M7: 4,643,817 km (0.097 R)
• M8: 5,035,165 km (0.113 R)
• M9: 6,256,183 km (0.086 R)
• M10: 7,465,981 km (0.098 R)
• M11: 9,011,626 km (0.04 R)
• M12: 9,468,049 km (0.064 R)
• M13: 11,449,922 km (0.057 R)
• M14: 12,214,068 km (0.067 R)
• M15: 13,301,644 km (0.095 R)
• M16: 15,669,031 km (0.072 R)
• M17: 16,781,141 km (0.114 R)
• M18: 18,365,083 km (0.084 R)
• M19: 22,583,594 km (0.028 R)
• M20: 23,427,475 km (0.11 R)
• M21: 24,732,567 km (0.086 R)

Planet 4 - Ice Giant

Semi-Major Axis: 14.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.1

Radius: 3.4

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 11.35 AU - 18.41 AU

Year: 26206 Days

Day: 15.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,004,839 km

• M1: 47,871 km (0.077 R)
• M2: 273,914 km (0.106 R)
• M3: 1,606,532 km (0.092 R)
• M4: 1,952,103 km (0.109 R)
• M5: 2,067,742 km (0.115 R)
• M6: 2,492,600 km (0.099 R)
• M7: 3,449,727 km (0.049 R)
• M8: 3,597,829 km (0.049 R)
• M9: 6,360,901 km (0.081 R)
• M10: 6,779,177 km (0.101 R)
• M11: 7,215,554 km (0.093 R)
• M12: 8,714,226 km (0.108 R)
• M13: 10,762,669 km (0.087 R)
• M14: 11,731,016 km (0.114 R)
• M15: 16,964,399 km (0.049 R)
• M16: 19,180,093 km (0.072 R)
• M17: 21,085,670 km (0.076 R)
• M18: 23,263,516 km (0.108 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 349 - 11,844 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit