🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.72 AU - 1.08 AU

Year: 318 Days

Day: 35.6 Hours

Environment

Temp: 49 °C

Axial Tilt: 25.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.85 AU - 1.13 AU

Year: 367 Days

Day: 29.1 Hours

Environment

Temp: 19 °C

Axial Tilt: 48.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 23,228,215 km

• M1: 121,473 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.39 AU - 1.47 AU

Year: 637 Days

Day: 36.2 Hours

Environment

Temp: -46 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.55 AU - 1.89 AU

Year: 841 Days

Day: 41.8 Hours

Environment

Temp: -66 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,228,215 km

• M1: 47,123 km (0.058 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.89 AU - 2.21 AU

Year: 1094 Days

Day: 17.4 Hours

Environment

Temp: -78 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,228,215 km

• M1: 429,196 km (0.113 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.34 AU - 2.52 AU

Year: 1412 Days

Day: 34.4 Hours

Environment

Temp: -89 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 23,228,215 km

• M1: 44,281 km (0.084 R)
• M2: 1,079,947 km (0.082 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.5 AU - 3.4 AU

Year: 1889 Days

Day: 12.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.92 AU - 3.42 AU

Year: 2104 Days

Day: 12.6 Hours

Environment

Temp: -109 °C

Axial Tilt: 8.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.17 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.3

Radius: 9.1

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.06 AU - 6.26 AU

Year: 4369 Days

Day: 11.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,228,215 km

• M1: 113,246 km (0.082 R)
• M2: 405,560 km (0.117 R)
• M3: 914,043 km (0.108 R)
• M4: 1,237,174 km (0.082 R)
• M5: 1,581,399 km (0.086 R)
• M6: 2,163,784 km (0.108 R)
• M7: 2,497,686 km (0.105 R)
• M8: 2,832,636 km (0.058 R)
• M9: 3,632,984 km (0.086 R)
• M10: 4,129,200 km (0.086 R)
• M11: 4,646,510 km (0.094 R)
• M12: 5,231,886 km (0.077 R)
• M13: 8,316,594 km (0.1 R)
• M14: 8,740,854 km (0.119 R)
• M15: 9,786,992 km (0.054 R)
• M16: 11,815,389 km (0.058 R)
• M17: 15,073,631 km (0.114 R)
• M18: 20,182,847 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 15,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit