🌌 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: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.54 AU - 0.8 AU

Year: 207 Days

Day: 42.5 Hours

Environment

Temp: 131 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.92 AU - 1.02 AU

Year: 360 Days

Day: 43.1 Hours

Environment

Temp: 25 °C

Axial Tilt: 17.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 38,765,230 km

• M1: 37,549 km (0.05 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.78 AU - 1.28 AU

Year: 394 Days

Day: 43.7 Hours

Environment

Temp: 20 °C

Axial Tilt: 23.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 38,765,230 km

• M1: 287,527 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.89 AU - 1.23 AU

Year: 411 Days

Day: 22.7 Hours

Environment

Temp: 15 °C

Axial Tilt: 87.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.84 AU - 1.38 AU

Year: 441 Days

Day: 12.3 Hours

Environment

Temp: -2 °C

Axial Tilt: 42.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.13 AU - 1.19 AU

Year: 471 Days

Day: 20.2 Hours

Environment

Temp: 3 °C

Axial Tilt: 44.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 38,765,230 km

• M1: 100,829 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.5

Radius: 8.4

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.86 AU - 10.68 AU

Year: 9784 Days

Day: 9.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 38,765,230 km

• M1: 105,018 km (0.091 R)
• M2: 427,850 km (0.099 R)
• M3: 848,669 km (0.11 R)
• M4: 1,395,150 km (0.117 R)
• M5: 2,362,749 km (0.095 R)
• M6: 2,653,717 km (0.062 R)
• M7: 3,242,983 km (0.12 R)
• M8: 4,144,011 km (0.06 R)
• M9: 4,879,284 km (0.104 R)
• M10: 5,202,715 km (0.103 R)
• M11: 5,925,572 km (0.088 R)
• M12: 6,192,155 km (0.082 R)
• M13: 7,686,787 km (0.083 R)
• M14: 8,623,270 km (0.056 R)
• M15: 10,003,460 km (0.063 R)
• M16: 11,732,213 km (0.069 R)
• M17: 12,207,037 km (0.103 R)
• M18: 12,585,220 km (0.086 R)
• M19: 15,206,025 km (0.118 R)
• M20: 16,349,252 km (0.1 R)
• M21: 18,030,882 km (0.072 R)
• M22: 20,726,635 km (0.115 R)
• M23: 22,531,384 km (0.119 R)
• M24: 25,300,291 km (0.066 R)
• M25: 26,721,022 km (0.098 R)
• M26: 29,623,969 km (0.055 R)
• M27: 30,603,536 km (0.112 R)
• M28: 31,705,773 km (0.099 R)
• M29: 35,280,115 km (0.059 R)
• M30: 36,269,405 km (0.117 R)
• M31: 36,603,158 km (0.081 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 13,477 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit