🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.55 AU - 0.89 AU

Year: 218 Days

Day: 18.1 Hours

Environment

Temp: 189 °C

Axial Tilt: 18 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.35 AU - 1.63 AU

Year: 648 Days

Day: 44.1 Hours

Environment

Temp: 4 °C

Axial Tilt: 19.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 45,017,817 km

• M1: 87,515 km (0.072 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.31 AU - 1.95 AU

Year: 742 Days

Day: 40.6 Hours

Environment

Temp: -43 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.58 AU - 1.7 AU

Year: 749 Days

Day: 15.1 Hours

Environment

Temp: -35 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,017,817 km

• M1: 806,183 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.16 AU - 2.18 AU

Year: 1139 Days

Day: 39.5 Hours

Environment

Temp: -57 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.45 AU - 3.15 AU

Year: 1670 Days

Day: 41.2 Hours

Environment

Temp: -86 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.9 AU - 3.48 AU

Year: 2031 Days

Day: 45.8 Hours

Environment

Temp: -106 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 45,017,817 km

• M1: 135,536 km (0.073 R)
• M2: 432,637 km (0.041 R)

Asteroid Belt

Center: 6.06 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.3

Radius: 9

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.12 AU - 10.72 AU

Year: 9496 Days

Day: 8.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,017,817 km

• M1: 112,348 km (0.112 R)
• M2: 405,560 km (0.045 R)
• M3: 687,253 km (0.038 R)
• M4: 1,140,534 km (0.062 R)
• M5: 1,653,505 km (0.072 R)
• M6: 2,556,628 km (0.105 R)
• M7: 2,985,973 km (0.075 R)
• M8: 3,963,296 km (0.102 R)
• M9: 5,140,482 km (0.05 R)
• M10: 5,691,601 km (0.081 R)
• M11: 6,759,580 km (0.107 R)
• M12: 7,830,401 km (0.083 R)
• M13: 10,866,191 km (0.071 R)
• M14: 12,673,333 km (0.099 R)
• M15: 17,869,765 km (0.071 R)
• M16: 23,363,298 km (0.081 R)
• M17: 24,153,923 km (0.105 R)
• M18: 25,695,828 km (0.096 R)
• M19: 29,276,602 km (0.051 R)
• M20: 30,505,848 km (0.113 R)
• M21: 30,923,226 km (0.069 R)
• M22: 33,286,723 km (0.092 R)
• M23: 33,951,686 km (0.073 R)
• M24: 37,291,159 km (0.108 R)
• M25: 37,648,548 km (0.091 R)
• M26: 39,966,118 km (0.104 R)
• M27: 40,465,775 km (0.102 R)
• M28: 41,223,189 km (0.094 R)
• M29: 43,948,713 km (0.065 R)

Kuiper Belt

Range: 30.8 - 50.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 13,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit