🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.12 AU - 1.26 AU

Year: 489 Days

Day: 25.4 Hours

Environment

Temp: 4 °C

Axial Tilt: 26.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 35,004,794 km

• M1: 61,934 km (0.03 R)
• M2: 835,504 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.04 AU - 1.42 AU

Year: 514 Days

Day: 12 Hours

Environment

Temp: -19 °C

Axial Tilt: 11.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.36 AU - 1.42 AU

Year: 617 Days

Day: 40.7 Hours

Environment

Temp: -40 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.95 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.7

Radius: 12.5

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.95 AU - 7.05 AU

Year: 6243 Days

Day: 6.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,004,794 km

• M1: 160,219 km (0.056 R)
• M2: 772,823 km (0.069 R)
• M3: 1,430,006 km (0.067 R)
• M4: 1,986,061 km (0.044 R)
• M5: 2,878,562 km (0.09 R)
• M6: 3,540,383 km (0.105 R)
• M7: 4,192,480 km (0.078 R)
• M8: 6,234,192 km (0.094 R)
• M9: 10,757,882 km (0.092 R)
• M10: 17,960,571 km (0.116 R)
• M11: 18,370,020 km (0.031 R)
• M12: 19,268,655 km (0.106 R)
• M13: 20,512,112 km (0.068 R)
• M14: 21,348,514 km (0.105 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40.8

Radius: 6.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 12.86 AU - 20.42 AU

Year: 25572 Days

Day: 18.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,004,794 km

• M1: 4,819,146 km (0.118 R)
• M2: 5,276,018 km (0.075 R)
• M3: 6,144,433 km (0.117 R)
• M4: 8,004,084 km (0.116 R)
• M5: 9,846,382 km (0.027 R)
• M6: 11,650,383 km (0.095 R)
• M7: 18,296,867 km (0.087 R)
• M8: 19,123,993 km (0.074 R)
• M9: 26,310,675 km (0.057 R)
• M10: 29,834,303 km (0.113 R)
• M11: 34,483,506 km (0.086 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 20,063 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit