🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.6 AU - 0.68 AU

Year: 196 Days

Day: 33.8 Hours

Environment

Temp: 128 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.82 AU - 1.06 AU

Year: 349 Days

Day: 20.2 Hours

Environment

Temp: 21 °C

Axial Tilt: 27.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.96 AU - 1.06 AU

Year: 389 Days

Day: 34.4 Hours

Environment

Temp: 9 °C

Axial Tilt: 6.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 47,560,872 km

• M1: 68,965 km (0.055 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.44 AU - 1.44 AU

Year: 662 Days

Day: 24.1 Hours

Environment

Temp: -48 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.44 AU - 2.08 AU

Year: 894 Days

Day: 21.9 Hours

Environment

Temp: -64 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,560,872 km

• M1: 261,647 km (0.08 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.13 AU - 3.39 AU

Year: 2254 Days

Day: 13.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,560,872 km

• M1: 191,934 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.1

Radius: 12.4

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 8.12 AU - 9.46 AU

Year: 9978 Days

Day: 13.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,560,872 km

• M1: 154,385 km (0.091 R)
• M2: 1,026,541 km (0.041 R)
• M3: 2,221,828 km (0.044 R)
• M4: 3,098,172 km (0.046 R)
• M5: 4,110,501 km (0.103 R)
• M6: 5,462,865 km (0.091 R)
• M7: 7,014,046 km (0.096 R)
• M8: 7,454,462 km (0.099 R)
• M9: 8,614,145 km (0.092 R)
• M10: 10,140,192 km (0.115 R)
• M11: 13,415,039 km (0.114 R)
• M12: 16,694,973 km (0.113 R)
• M13: 18,672,058 km (0.088 R)
• M14: 20,556,543 km (0.109 R)
• M15: 22,999,027 km (0.07 R)
• M16: 25,817,451 km (0.111 R)
• M17: 28,352,836 km (0.109 R)
• M18: 29,062,827 km (0.094 R)
• M19: 31,695,750 km (0.037 R)
• M20: 34,713,737 km (0.117 R)
• M21: 40,799,528 km (0.085 R)
• M22: 41,704,595 km (0.06 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 18,450 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit