🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.76 AU - 0.78 AU

Year: 255 Days

Day: 44.5 Hours

Environment

Temp: 82 °C

Axial Tilt: 24.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.02 AU - 1.04 AU

Year: 394 Days

Day: 24.1 Hours

Environment

Temp: -3 °C

Axial Tilt: 14.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 24,277,725 km

• M1: 540,946 km (0.107 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.13 AU - 1.21 AU

Year: 477 Days

Day: 41.7 Hours

Environment

Temp: -16 °C

Axial Tilt: 8.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.5 AU - 1.8 AU

Year: 798 Days

Day: 16.3 Hours

Environment

Temp: -53 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 24,277,725 km

• M1: 42,935 km (0.076 R)
• M2: 93,947 km (0.066 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.42 AU - 2.9 AU

Year: 1634 Days

Day: 12.4 Hours

Environment

Temp: -111 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.17 AU - 4.77 AU

Year: 2980 Days

Day: 44.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,277,725 km

• M1: 93,199 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.2

Radius: 8.3

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 4.83 AU - 6.39 AU

Year: 5006 Days

Day: 11.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 24,277,725 km

• M1: 103,223 km (0.098 R)
• M2: 558,150 km (0.099 R)
• M3: 823,387 km (0.075 R)
• M4: 1,278,763 km (0.065 R)
• M5: 1,548,338 km (0.118 R)
• M6: 1,894,208 km (0.078 R)
• M7: 2,204,923 km (0.09 R)
• M8: 2,533,889 km (0.109 R)
• M9: 3,198,103 km (0.09 R)
• M10: 3,930,983 km (0.108 R)
• M11: 4,868,962 km (0.119 R)
• M12: 5,483,211 km (0.075 R)
• M13: 8,253,763 km (0.118 R)
• M14: 8,755,515 km (0.11 R)
• M15: 9,392,054 km (0.072 R)
• M16: 10,342,748 km (0.103 R)
• M17: 14,278,518 km (0.074 R)
• M18: 14,688,865 km (0.109 R)
• M19: 15,212,907 km (0.087 R)
• M20: 15,533,196 km (0.069 R)
• M21: 16,353,890 km (0.057 R)
• M22: 18,805,051 km (0.083 R)
• M23: 19,298,275 km (0.034 R)
• M24: 22,303,397 km (0.106 R)
• M25: 23,488,661 km (0.066 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: 434 - 12,838 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit