🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.39 AU - 0.63 AU

Year: 133 Days

Day: 24.4 Hours

Environment

Temp: 200 °C

Axial Tilt: 7.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 69,764,855 km

• M1: 57,146 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.47 AU - 0.71 AU

Year: 166 Days

Day: 41.4 Hours

Environment

Temp: 200 °C

Axial Tilt: 17.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.09 AU - 1.27 AU

Year: 468 Days

Day: 25.3 Hours

Environment

Temp: 3 °C

Axial Tilt: 31.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.34 AU - 1.56 AU

Year: 638 Days

Day: 26.6 Hours

Environment

Temp: -32 °C

Axial Tilt: 18 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.5

Radius: 13.6

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 8.02 AU - 8.54 AU

Year: 8702 Days

Day: 13 Hours

Environment

Temp: -170 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,764,855 km

• M1: 169,345 km (0.106 R)
• M2: 2,175,153 km (0.099 R)
• M3: 3,696,414 km (0.037 R)
• M4: 4,651,895 km (0.106 R)
• M5: 5,337,652 km (0.106 R)
• M6: 6,064,698 km (0.097 R)
• M7: 12,420,513 km (0.111 R)
• M8: 14,009,093 km (0.112 R)
• M9: 15,584,957 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.4

Radius: 5.1

Gravity: 26.89 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 12.38 AU - 13.88 AU

Year: 17378 Days

Day: 23.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,764,855 km

• M1: 70,610 km (0.094 R)
• M2: 271,520 km (0.031 R)
• M3: 534,064 km (0.101 R)
• M4: 708,944 km (0.103 R)
• M5: 956,529 km (0.032 R)
• M6: 1,420,133 km (0.105 R)
• M7: 1,763,310 km (0.1 R)
• M8: 2,002,367 km (0.097 R)
• M9: 2,368,882 km (0.081 R)
• M10: 3,948,785 km (0.027 R)
• M11: 5,081,391 km (0.066 R)
• M12: 5,840,450 km (0.107 R)
• M13: 6,759,729 km (0.057 R)
• M14: 7,071,491 km (0.089 R)
• M15: 8,933,835 km (0.084 R)
• M16: 10,736,789 km (0.085 R)
• M17: 12,701,757 km (0.106 R)
• M18: 14,524,756 km (0.109 R)
• M19: 15,575,083 km (0.113 R)
• M20: 17,162,167 km (0.116 R)
• M21: 19,471,509 km (0.098 R)
• M22: 20,468,878 km (0.099 R)
• M23: 23,160,593 km (0.1 R)
• M24: 23,664,887 km (0.067 R)
• M25: 24,176,512 km (0.12 R)
• M26: 26,296,763 km (0.071 R)
• M27: 28,079,670 km (0.119 R)
• M28: 31,146,277 km (0.118 R)
• M29: 34,298,603 km (0.07 R)
• M30: 35,616,859 km (0.073 R)
• M31: 36,968,626 km (0.07 R)
• M32: 42,117,934 km (0.106 R)
• M33: 46,758,011 km (0.037 R)
• M34: 50,201,305 km (0.104 R)
• M35: 50,369,304 km (0.107 R)
• M36: 52,588,439 km (0.117 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 17,240 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit