🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.72 AU - 0.78 AU

Year: 229 Days

Day: 27.6 Hours

Environment

Temp: 159 °C

Axial Tilt: 25.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.8 AU - 1.16 AU

Year: 343 Days

Day: 47.6 Hours

Environment

Temp: 99 °C

Axial Tilt: 18.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 19,064,066 km

• M1: 111,151 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.97 AU - 1.17 AU

Year: 391 Days

Day: 25.4 Hours

Environment

Temp: 32 °C

Axial Tilt: 14.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.14 AU - 1.24 AU

Year: 458 Days

Day: 45.6 Hours

Environment

Temp: 32 °C

Axial Tilt: 15.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.12 AU - 3.42 AU

Year: 1628 Days

Day: 18.9 Hours

Environment

Temp: -77 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.93 AU - 6.51 AU

Year: 4211 Days

Day: 17.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,064,066 km

• M1: 1,272,180 km (0.076 R)

Planet 7 - Terrestrial

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.62 AU - 6.02 AU

Year: 4333 Days

Day: 12.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,064,066 km

• M1: 100,829 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.6

Radius: 13.1

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 5.51 AU - 6.33 AU

Year: 5086 Days

Day: 5.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,064,066 km

• M1: 164,109 km (0.071 R)
• M2: 776,413 km (0.104 R)
• M3: 3,106,250 km (0.041 R)
• M4: 3,700,303 km (0.077 R)
• M5: 5,211,242 km (0.109 R)
• M6: 7,188,327 km (0.091 R)
• M7: 9,731,790 km (0.032 R)
• M8: 11,729,670 km (0.072 R)
• M9: 12,143,158 km (0.098 R)
• M10: 18,447,213 km (0.108 R)

Kuiper Belt

Range: 31.1 - 51.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 16,711 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit