🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.81 AU - 0.97 AU

Year: 299 Days

Day: 41.1 Hours

Environment

Temp: 175 °C

Axial Tilt: 59.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.1 AU - 1.14 AU

Year: 422 Days

Day: 36.3 Hours

Environment

Temp: 36 °C

Axial Tilt: 67.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.19 AU - 1.19 AU

Year: 463 Days

Day: 30.7 Hours

Environment

Temp: 18 °C

Axial Tilt: 28.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.15 AU - 1.47 AU

Year: 534 Days

Day: 43.5 Hours

Environment

Temp: -6 °C

Axial Tilt: 35.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.51 AU - 2.97 AU

Year: 1617 Days

Day: 29.9 Hours

Environment

Temp: -93 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.28 AU - 3.56 AU

Year: 2254 Days

Day: 44.7 Hours

Environment

Temp: -98 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 19,153,379 km

• M1: 307,424 km (0.087 R)
• M2: 1,259,614 km (0.118 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 3.51 AU - 4.23 AU

Year: 2714 Days

Day: 39.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,153,379 km

• M1: 944,112 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.4

Radius: 13.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.32 AU - 8.04 AU

Year: 6154 Days

Day: 11 Hours

Environment

Temp: -157 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,153,379 km

• M1: 162,912 km (0.042 R)
• M2: 640,578 km (0.079 R)
• M3: 1,387,371 km (0.061 R)
• M4: 2,047,845 km (0.096 R)
• M5: 2,958,298 km (0.105 R)
• M6: 3,945,345 km (0.104 R)
• M7: 4,515,911 km (0.094 R)
• M8: 5,474,983 km (0.101 R)
• M9: 6,240,176 km (0.085 R)
• M10: 8,598,437 km (0.072 R)
• M11: 11,179,150 km (0.101 R)
• M12: 13,370,908 km (0.117 R)
• M13: 15,144,241 km (0.114 R)
• M14: 18,982,923 km (0.11 R)

Kuiper Belt

Range: 30.8 - 54.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 12,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit