🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.51 AU - 0.55 AU

Year: 137 Days

Day: 47.9 Hours

Environment

Temp: 232 °C

Axial Tilt: 45.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.47 AU - 0.63 AU

Year: 145 Days

Day: 30.8 Hours

Environment

Temp: 250 °C

Axial Tilt: 9.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.99 AU - 1.01 AU

Year: 355 Days

Day: 38.2 Hours

Environment

Temp: 135 °C

Axial Tilt: 47.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.92 AU - 1.32 AU

Year: 420 Days

Day: 43.4 Hours

Environment

Temp: 23 °C

Axial Tilt: 6.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.2 AU - 2.7 AU

Year: 1360 Days

Day: 23.4 Hours

Environment

Temp: -83 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.5 AU - 5.24 AU

Year: 3241 Days

Day: 29.6 Hours

Environment

Temp: -116 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,766,949 km

• M1: 537,655 km (0.102 R)
• M2: 2,157,052 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.3

Radius: 13.1

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 12.24 AU - 13.36 AU

Year: 16246 Days

Day: 8.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,766,949 km

• M1: 162,912 km (0.094 R)
• M2: 585,227 km (0.107 R)
• M3: 1,934,151 km (0.105 R)
• M4: 3,340,520 km (0.119 R)
• M5: 4,539,847 km (0.041 R)
• M6: 6,550,741 km (0.118 R)
• M7: 7,312,045 km (0.118 R)
• M8: 7,851,943 km (0.069 R)
• M9: 9,230,488 km (0.057 R)
• M10: 11,721,741 km (0.049 R)
• M11: 12,789,571 km (0.059 R)
• M12: 13,290,873 km (0.077 R)
• M13: 21,138,030 km (0.093 R)
• M14: 22,476,482 km (0.068 R)
• M15: 23,870,584 km (0.108 R)
• M16: 27,931,718 km (0.054 R)
• M17: 32,226,822 km (0.089 R)

Kuiper Belt

Range: 30.9 - 60.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 18,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit