🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.77 AU - 1.09 AU

Year: 321 Days

Day: 38.7 Hours

Environment

Temp: 128 °C

Axial Tilt: 1.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.95 AU - 1.03 AU

Year: 353 Days

Day: 22.6 Hours

Environment

Temp: 105 °C

Axial Tilt: 13.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,626,201 km

• M1: 610,060 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.4 AU - 1.42 AU

Year: 600 Days

Day: 39.5 Hours

Environment

Temp: -5 °C

Axial Tilt: 26.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.86 AU - 2.5 AU

Year: 1153 Days

Day: 12.1 Hours

Environment

Temp: -71 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,626,201 km

• M1: 588,518 km (0.101 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.75 AU - 2.73 AU

Year: 1201 Days

Day: 15.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,626,201 km

• M1: 137,480 km (0.107 R)
• M2: 376,837 km (0.055 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.46 AU - 3.38 AU

Year: 1787 Days

Day: 21.3 Hours

Environment

Temp: -90 °C

Axial Tilt: 69.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,626,201 km

• M1: 231,877 km (0.088 R)
• M2: 274,063 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 14.4

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 9.21 AU - 9.93 AU

Year: 10603 Days

Day: 7.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,626,201 km

• M1: 180,714 km (0.117 R)
• M2: 832,961 km (0.057 R)
• M3: 1,769,892 km (0.08 R)
• M4: 2,656,409 km (0.114 R)
• M5: 3,904,205 km (0.065 R)
• M6: 4,754,220 km (0.027 R)
• M7: 5,341,691 km (0.062 R)
• M8: 5,831,923 km (0.076 R)
• M9: 14,721,328 km (0.083 R)
• M10: 18,934,602 km (0.108 R)
• M11: 20,080,971 km (0.11 R)
• M12: 22,331,970 km (0.072 R)
• M13: 23,148,924 km (0.086 R)
• M14: 26,017,014 km (0.073 R)
• M15: 26,718,928 km (0.092 R)
• M16: 32,681,151 km (0.057 R)
• M17: 50,025,378 km (0.092 R)
• M18: 52,212,649 km (0.054 R)

Kuiper Belt

Range: 30.6 - 58.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 16,194 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit