🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.39 AU - 0.63 AU

Year: 132 Days

Day: 44.3 Hours

Environment

Temp: 177 °C

Axial Tilt: 16.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.64 AU - 0.92 AU

Year: 250 Days

Day: 16.9 Hours

Environment

Temp: 143 °C

Axial Tilt: 20.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.03 AU - 1.05 AU

Year: 385 Days

Day: 46.2 Hours

Environment

Temp: 36 °C

Axial Tilt: 13.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 53,321,653 km

• M1: 783,444 km (0.111 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.33 AU - 1.65 AU

Year: 661 Days

Day: 19.8 Hours

Environment

Temp: -24 °C

Axial Tilt: 49.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,321,653 km

• M1: 104,120 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.32 AU - 1.78 AU

Year: 701 Days

Day: 41.5 Hours

Environment

Temp: -35 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.69 AU - 2.71 AU

Year: 1612 Days

Day: 25.5 Hours

Environment

Temp: -83 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 11.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.4

Radius: 8.9

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 9.82 AU - 12.68 AU

Year: 13714 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,321,653 km

• M1: 110,702 km (0.085 R)
• M2: 395,836 km (0.102 R)
• M3: 932,144 km (0.111 R)
• M4: 1,680,582 km (0.074 R)
• M5: 2,451,311 km (0.092 R)
• M6: 3,123,604 km (0.037 R)
• M7: 3,645,551 km (0.037 R)
• M8: 5,222,761 km (0.117 R)
• M9: 5,670,507 km (0.034 R)
• M10: 5,958,633 km (0.104 R)
• M11: 7,086,451 km (0.107 R)
• M12: 8,629,852 km (0.115 R)
• M13: 9,207,300 km (0.096 R)
• M14: 11,952,571 km (0.107 R)
• M15: 12,307,716 km (0.072 R)
• M16: 16,989,980 km (0.12 R)
• M17: 18,284,001 km (0.102 R)
• M18: 19,642,350 km (0.116 R)
• M19: 21,672,992 km (0.107 R)
• M20: 26,345,831 km (0.076 R)
• M21: 27,559,518 km (0.103 R)
• M22: 27,972,259 km (0.081 R)
• M23: 28,810,156 km (0.093 R)
• M24: 30,977,979 km (0.057 R)
• M25: 32,444,038 km (0.056 R)
• M26: 35,635,858 km (0.114 R)
• M27: 36,249,060 km (0.104 R)
• M28: 49,581,671 km (0.102 R)

Kuiper Belt

Range: 30.2 - 53.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 262 - 19,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit