🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.73 AU - 0.97 AU

Year: 298 Days

Day: 33.7 Hours

Environment

Temp: 34 °C

Axial Tilt: 39.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.52 AU - 1.62 AU

Year: 749 Days

Day: 19.5 Hours

Environment

Temp: -53 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.28 AU - 2.1 AU

Year: 837 Days

Day: 14.2 Hours

Environment

Temp: -70 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 46,592,534 km

• M1: 44,730 km (0.109 R)
• M2: 890,407 km (0.115 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.92 AU - 2.16 AU

Year: 1110 Days

Day: 13.6 Hours

Environment

Temp: -90 °C

Axial Tilt: 142.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.8

Radius: 11.3

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.27 AU - 10.45 AU

Year: 10043 Days

Day: 12.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,592,534 km

• M1: 142,417 km (0.098 R)
• M2: 602,131 km (0.108 R)
• M3: 1,934,300 km (0.075 R)
• M4: 2,474,498 km (0.101 R)
• M5: 5,150,355 km (0.115 R)
• M6: 5,505,800 km (0.12 R)
• M7: 6,672,065 km (0.069 R)
• M8: 7,911,184 km (0.065 R)
• M9: 10,124,036 km (0.085 R)
• M10: 10,684,280 km (0.114 R)
• M11: 11,535,941 km (0.057 R)
• M12: 16,417,469 km (0.057 R)
• M13: 18,211,147 km (0.048 R)
• M14: 18,963,924 km (0.103 R)
• M15: 21,931,048 km (0.093 R)
• M16: 23,043,158 km (0.071 R)
• M17: 23,657,407 km (0.107 R)
• M18: 25,010,370 km (0.1 R)
• M19: 25,940,570 km (0.025 R)
• M20: 29,378,479 km (0.058 R)
• M21: 31,046,794 km (0.09 R)
• M22: 40,219,388 km (0.074 R)
• M23: 43,860,749 km (0.109 R)
• M24: 45,349,547 km (0.112 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: 511 - 10,666 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit