🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.71 AU - 0.93 AU

Year: 266 Days

Day: 16.7 Hours

Environment

Temp: 103 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.9 AU - 0.92 AU

Year: 311 Days

Day: 44.9 Hours

Environment

Temp: 150 °C

Axial Tilt: 22.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 42,785,150 km

• M1: 68,217 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.06 AU - 1.4 AU

Year: 489 Days

Day: 18.1 Hours

Environment

Temp: 3 °C

Axial Tilt: 28.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 42,785,150 km

• M1: 56,099 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.62 AU - 1.74 AU

Year: 780 Days

Day: 32.2 Hours

Environment

Temp: -43 °C

Axial Tilt: 8.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,785,150 km

• M1: 72,106 km (0.106 R)
• M2: 684,709 km (0.087 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.72 AU - 2.24 AU

Year: 998 Days

Day: 24.5 Hours

Environment

Temp: -62 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.2

Radius: 11.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.31 AU - 6.95 AU

Year: 5436 Days

Day: 9.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 42,785,150 km

• M1: 266,883 km (0.09 R)
• M2: 1,617,303 km (0.091 R)
• M3: 2,622,151 km (0.039 R)
• M4: 3,771,362 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.3

Radius: 7.8

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 13.79 AU - 18.03 AU

Year: 22729 Days

Day: 23.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,785,150 km

• M1: 97,538 km (0.083 R)
• M2: 821,592 km (0.113 R)
• M3: 3,758,198 km (0.074 R)
• M4: 4,065,322 km (0.034 R)
• M5: 9,088,968 km (0.116 R)
• M6: 10,975,697 km (0.108 R)
• M7: 18,178,236 km (0.085 R)
• M8: 20,746,831 km (0.084 R)
• M9: 32,905,996 km (0.073 R)
• M10: 33,337,736 km (0.071 R)
• M11: 33,773,215 km (0.071 R)
• M12: 39,906,878 km (0.108 R)

Kuiper Belt

Range: 30.6 - 60.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 16,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit