🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.81 AU - 0.83 AU

Year: 269 Days

Day: 29.8 Hours

Environment

Temp: 95 °C

Axial Tilt: 97 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.77 AU - 1.15 AU

Year: 340 Days

Day: 14.7 Hours

Environment

Temp: 142 °C

Axial Tilt: 28.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.09 AU - 1.17 AU

Year: 434 Days

Day: 35.5 Hours

Environment

Temp: 11 °C

Axial Tilt: 24.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.2 AU - 1.38 AU

Year: 530 Days

Day: 13.1 Hours

Environment

Temp: 9 °C

Axial Tilt: 25.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 79,314,851 km

• M1: 625,170 km (0.055 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.77 AU - 1.77 AU

Year: 852 Days

Day: 16.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.41 AU - 2.27 AU

Year: 903 Days

Day: 28.4 Hours

Environment

Temp: -47 °C

Axial Tilt: 45.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.44 AU - 3.92 AU

Year: 2051 Days

Day: 17 Hours

Environment

Temp: -101 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 19.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.5

Radius: 5.3

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 15.1 AU - 24.86 AU

Year: 32299 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,314,851 km

• M1: 66,122 km (0.106 R)
• M2: 498,011 km (0.118 R)
• M3: 886,966 km (0.08 R)
• M4: 3,951,329 km (0.106 R)
• M5: 4,694,980 km (0.054 R)
• M6: 4,987,144 km (0.036 R)
• M7: 6,589,188 km (0.101 R)
• M8: 7,191,618 km (0.097 R)
• M9: 8,399,322 km (0.051 R)
• M10: 10,031,584 km (0.111 R)
• M11: 17,789,880 km (0.054 R)
• M12: 19,693,812 km (0.103 R)
• M13: 22,233,984 km (0.119 R)
• M14: 26,555,268 km (0.112 R)
• M15: 31,404,632 km (0.047 R)
• M16: 36,955,012 km (0.109 R)
• M17: 38,255,167 km (0.034 R)
• M18: 43,124,877 km (0.118 R)
• M19: 46,037,698 km (0.116 R)
• M20: 50,297,048 km (0.115 R)
• M21: 57,071,438 km (0.056 R)
• M22: 61,374,471 km (0.094 R)
• M23: 62,179,457 km (0.073 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 535 - 20,240 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit