🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.99 AU - 1.01 AU

Year: 292 Days

Day: 46.4 Hours

Environment

Temp: 249 °C

Axial Tilt: 14.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.12 AU - 1.4 AU

Year: 414 Days

Day: 36.4 Hours

Environment

Temp: 222 °C

Axial Tilt: 47.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.12 AU - 1.42 AU

Year: 419 Days

Day: 47.2 Hours

Environment

Temp: 239 °C

Axial Tilt: 63.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 5,689,533 km

• M1: 124,166 km (0.028 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.69 AU - 1.83 AU

Year: 683 Days

Day: 18.3 Hours

Environment

Temp: 176 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 5,689,533 km

• M1: 46,375 km (0.107 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.72 AU - 2.48 AU

Year: 890 Days

Day: 45.8 Hours

Environment

Temp: 35 °C

Axial Tilt: 38.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.39 AU - 4.55 AU

Year: 2764 Days

Day: 41.4 Hours

Environment

Temp: -61 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 5,689,533 km

• M1: 66,870 km (0.119 R)

Planet 7 - Terrestrial

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 4.36 AU - 6.64 AU

Year: 3772 Days

Day: 15.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 5,689,533 km

• M1: 22,739 km (0.071 R)
• M2: 241,900 km (0.078 R)

Planet 8 - Terrestrial

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 6.11 AU - 8.93 AU

Year: 6031 Days

Day: 16.9 Hours

Environment

Temp: -117 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Kuiper Belt

Range: 37.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 17,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit