🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.44 AU - 0.74 AU

Year: 163 Days

Day: 16.4 Hours

Environment

Temp: 157 °C

Axial Tilt: 26.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.48 AU - 0.7 AU

Year: 163 Days

Day: 18.4 Hours

Environment

Temp: 182 °C

Axial Tilt: 31.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.56 AU - 0.86 AU

Year: 215 Days

Day: 33.3 Hours

Environment

Temp: 164 °C

Axial Tilt: 11.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,729,318 km

• M1: 100,081 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.07 AU - 1.07 AU

Year: 398 Days

Day: 40.8 Hours

Environment

Temp: 21 °C

Axial Tilt: 22 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.29 AU - 1.49 AU

Year: 590 Days

Day: 35.4 Hours

Environment

Temp: -12 °C

Axial Tilt: 21.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.66 AU - 2.78 AU

Year: 1614 Days

Day: 47.3 Hours

Environment

Temp: -82 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.18 AU - 4.96 AU

Year: 2955 Days

Day: 40.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 8.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.4

Radius: 10.8

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 6.73 AU - 10.53 AU

Year: 9124 Days

Day: 15 Hours

Environment

Temp: -156 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,729,318 km

• M1: 267,780 km (0.091 R)
• M2: 637,287 km (0.085 R)
• M3: 1,330,523 km (0.032 R)
• M4: 2,201,333 km (0.047 R)
• M5: 3,369,243 km (0.096 R)
• M6: 5,002,852 km (0.109 R)
• M7: 6,723,826 km (0.105 R)
• M8: 8,946,252 km (0.086 R)
• M9: 10,350,527 km (0.079 R)
• M10: 16,047,962 km (0.074 R)
• M11: 22,502,213 km (0.103 R)
• M12: 23,282,365 km (0.046 R)
• M13: 24,441,001 km (0.056 R)
• M14: 26,969,803 km (0.119 R)
• M15: 29,771,323 km (0.067 R)
• M16: 31,995,843 km (0.111 R)
• M17: 38,959,025 km (0.036 R)
• M18: 39,957,741 km (0.117 R)

Kuiper Belt

Range: 30.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 13,885 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit