🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.66 AU - 0.74 AU

Year: 223 Days

Day: 43.1 Hours

Environment

Temp: 108 °C

Axial Tilt: 34.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.9 AU - 1.34 AU

Year: 451 Days

Day: 13 Hours

Environment

Temp: 8 °C

Axial Tilt: 17.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.1 AU - 1.52 AU

Year: 571 Days

Day: 28 Hours

Environment

Temp: -34 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,410,764 km

• M1: 83,625 km (0.087 R)
• M2: 1,146,069 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.15 AU - 3.07 AU

Year: 1606 Days

Day: 27.7 Hours

Environment

Temp: -96 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,410,764 km

• M1: 253,568 km (0.082 R)
• M2: 1,518,269 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.4

Radius: 7.7

Gravity: 14.09 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 12.63 AU - 18.91 AU

Year: 23848 Days

Day: 23.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 91,410,764 km

• M1: 95,892 km (0.1 R)
• M2: 1,068,129 km (0.093 R)
• M3: 1,342,342 km (0.047 R)
• M4: 1,833,920 km (0.113 R)
• M5: 2,100,354 km (0.083 R)
• M6: 2,440,091 km (0.111 R)
• M7: 3,437,310 km (0.057 R)
• M8: 3,977,359 km (0.097 R)
• M9: 4,427,499 km (0.083 R)
• M10: 5,347,525 km (0.115 R)
• M11: 6,669,671 km (0.049 R)
• M12: 7,007,164 km (0.117 R)
• M13: 7,612,138 km (0.095 R)
• M14: 8,754,168 km (0.109 R)
• M15: 10,904,787 km (0.078 R)
• M16: 11,305,859 km (0.11 R)
• M17: 12,861,378 km (0.109 R)
• M18: 13,844,984 km (0.044 R)
• M19: 19,041,266 km (0.058 R)
• M20: 20,317,036 km (0.05 R)
• M21: 21,544,337 km (0.075 R)
• M22: 25,289,071 km (0.085 R)
• M23: 27,806,654 km (0.055 R)
• M24: 32,502,980 km (0.116 R)
• M25: 34,037,106 km (0.102 R)
• M26: 36,799,580 km (0.081 R)
• M27: 43,763,660 km (0.073 R)
• M28: 46,151,242 km (0.056 R)
• M29: 47,553,872 km (0.031 R)
• M30: 48,087,039 km (0.109 R)
• M31: 55,190,843 km (0.08 R)
• M32: 56,571,332 km (0.12 R)
• M33: 73,545,604 km (0.052 R)
• M34: 83,436,567 km (0.112 R)
• M35: 85,777,923 km (0.073 R)
• M36: 86,040,767 km (0.119 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: 306 - 13,819 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit