🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.66 AU - 0.68 AU

Year: 191 Days

Day: 32.1 Hours

Environment

Temp: 153 °C

Axial Tilt: 6.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.73 AU - 0.87 AU

Year: 249 Days

Day: 28.4 Hours

Environment

Temp: 179 °C

Axial Tilt: 4.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 3,878,268 km

• M1: 323,431 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.75 AU - 0.85 AU

Year: 249 Days

Day: 22.6 Hours

Environment

Temp: 184 °C

Axial Tilt: 16.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.4 AU - 1.64 AU

Year: 653 Days

Day: 41.5 Hours

Environment

Temp: 10 °C

Axial Tilt: 7.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.97 AU - 1.97 AU

Year: 963 Days

Day: 40.6 Hours

Environment

Temp: -48 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 3,878,268 km

• M1: 107,262 km (0.053 R)
• M2: 493,523 km (0.087 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.92 AU - 2.82 AU

Year: 1271 Days

Day: 25.6 Hours

Environment

Temp: -59 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.51 AU - 2.91 AU

Year: 1554 Days

Day: 29 Hours

Environment

Temp: -78 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 3,878,268 km

• M1: 1,529,788 km (0.115 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.4 AU - 3.46 AU

Year: 1747 Days

Day: 25.2 Hours

Environment

Temp: -92 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.26 AU - 6.12 AU

Year: 4118 Days

Day: 25.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 3,878,268 km

• M1: 654,341 km (0.109 R)

Kuiper Belt

Range: 31.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 18,140 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit