🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.88 AU - 1.34 AU

Year: 419 Days

Day: 37.4 Hours

Environment

Temp: 24 °C

Axial Tilt: 34.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.52 AU - 2.1 AU

Year: 872 Days

Day: 26.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,557,747 km

• M1: 17,503 km (0.089 R)
• M2: 105,915 km (0.055 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.58 AU - 2.3 AU

Year: 968 Days

Day: 37.5 Hours

Environment

Temp: -57 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,557,747 km

• M1: 129,701 km (0.105 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.79 AU - 2.95 AU

Year: 1307 Days

Day: 41.1 Hours

Environment

Temp: -67 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.73 AU - 3.71 AU

Year: 2069 Days

Day: 44.1 Hours

Environment

Temp: -109 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.57 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 15.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355

Radius: 3.2

Gravity: 34.67 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 13.79 AU - 18.03 AU

Year: 22729 Days

Day: 18.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 179.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 66,557,747 km

• M1: 48,619 km (0.068 R)
• M2: 176,077 km (0.033 R)
• M3: 396,285 km (0.104 R)
• M4: 807,679 km (0.112 R)
• M5: 1,142,778 km (0.109 R)
• M6: 2,365,591 km (0.048 R)
• M7: 3,274,398 km (0.07 R)
• M8: 4,426,003 km (0.112 R)
• M9: 4,557,499 km (0.091 R)
• M10: 6,305,550 km (0.104 R)
• M11: 6,901,847 km (0.11 R)
• M12: 9,178,577 km (0.092 R)
• M13: 9,446,806 km (0.068 R)
• M14: 12,884,416 km (0.092 R)
• M15: 14,624,239 km (0.098 R)
• M16: 16,751,670 km (0.111 R)
• M17: 19,689,773 km (0.098 R)
• M18: 23,746,867 km (0.105 R)
• M19: 24,251,909 km (0.12 R)
• M20: 32,340,068 km (0.05 R)
• M21: 32,960,450 km (0.098 R)
• M22: 33,842,180 km (0.115 R)
• M23: 34,998,871 km (0.053 R)
• M24: 36,181,591 km (0.1 R)
• M25: 40,459,193 km (0.09 R)
• M26: 44,296,827 km (0.076 R)
• M27: 50,165,851 km (0.091 R)
• M28: 63,997,071 km (0.106 R)

Kuiper Belt

Range: 30.6 - 48.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 18,026 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit