🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.64 AU - 0.8 AU

Year: 271 Days

Day: 21.9 Hours

Environment

Temp: -37 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.78 AU - 0.86 AU

Year: 329 Days

Day: 23.5 Hours

Environment

Temp: -40 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,413,558 km

• M1: 216,767 km (0.084 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.03 AU - 1.55 AU

Year: 649 Days

Day: 31.9 Hours

Environment

Temp: -84 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.31 AU - 1.49 AU

Year: 734 Days

Day: 28.3 Hours

Environment

Temp: -100 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.49 AU - 2.29 AU

Year: 1151 Days

Day: 34.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.6

Radius: 12.1

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.94 AU - 3.32 AU

Year: 2453 Days

Day: 7.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,413,558 km

• M1: 150,795 km (0.11 R)
• M2: 714,629 km (0.047 R)
• M3: 1,215,034 km (0.045 R)
• M4: 1,958,535 km (0.091 R)
• M5: 2,570,989 km (0.075 R)
• M6: 3,218,149 km (0.084 R)
• M7: 4,529,973 km (0.068 R)
• M8: 5,099,642 km (0.101 R)
• M9: 5,694,742 km (0.062 R)
• M10: 6,359,405 km (0.111 R)
• M11: 6,797,428 km (0.102 R)
• M12: 7,653,277 km (0.109 R)
• M13: 8,405,904 km (0.052 R)
• M14: 9,485,253 km (0.107 R)
• M15: 11,309,749 km (0.088 R)
• M16: 11,991,317 km (0.107 R)
• M17: 13,045,533 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.9

Radius: 14.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.17 AU - 3.53 AU

Year: 2716 Days

Day: 8 Hours

Environment

Temp: -165 °C

Axial Tilt: 92.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,413,558 km

• M1: 176,675 km (0.098 R)
• M2: 872,754 km (0.087 R)
• M3: 1,541,008 km (0.112 R)
• M4: 2,649,079 km (0.069 R)
• M5: 3,394,076 km (0.068 R)
• M6: 4,844,727 km (0.108 R)
• M7: 6,944,632 km (0.064 R)
• M8: 9,327,128 km (0.089 R)
• M9: 10,077,960 km (0.117 R)
• M10: 10,979,736 km (0.101 R)
• M11: 13,069,169 km (0.119 R)
• M12: 14,009,990 km (0.072 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 11,750 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit