🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.42 AU - 0.7 AU

Year: 147 Days

Day: 21.7 Hours

Environment

Temp: 233 °C

Axial Tilt: 48.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.96 AU - 1.2 AU

Year: 394 Days

Day: 23.6 Hours

Environment

Temp: 64 °C

Axial Tilt: 0.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.87 AU - 1.41 AU

Year: 428 Days

Day: 17.6 Hours

Environment

Temp: 44 °C

Axial Tilt: 21.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 85,563,650 km

• M1: 63,280 km (0.094 R)

Planet 4 - Terrestrial

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.42 AU - 6.28 AU

Year: 4349 Days

Day: 18.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 85,563,650 km

• M1: 164,408 km (0.045 R)
• M2: 1,218,624 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16

Radius: 14.2

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.6 AU - 12.22 AU

Year: 10964 Days

Day: 10.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,563,650 km

• M1: 176,525 km (0.053 R)
• M2: 670,647 km (0.067 R)
• M3: 1,273,676 km (0.092 R)
• M4: 2,247,409 km (0.055 R)
• M5: 3,931,881 km (0.095 R)
• M6: 4,544,185 km (0.077 R)
• M7: 7,112,182 km (0.114 R)
• M8: 8,860,383 km (0.09 R)
• M9: 9,654,149 km (0.052 R)
• M10: 11,641,706 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 838.9

Radius: 5.1

Gravity: 32.25 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 15.05 AU - 16.05 AU

Year: 21551 Days

Day: 18.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,563,650 km

• M1: 64,028 km (0.097 R)
• M2: 513,869 km (0.028 R)
• M3: 913,145 km (0.106 R)
• M4: 1,383,332 km (0.085 R)
• M5: 1,746,256 km (0.106 R)
• M6: 3,335,733 km (0.091 R)
• M7: 4,085,817 km (0.116 R)
• M8: 4,572,160 km (0.086 R)
• M9: 5,999,473 km (0.107 R)
• M10: 7,346,602 km (0.06 R)
• M11: 8,604,720 km (0.1 R)
• M12: 9,757,372 km (0.103 R)
• M13: 18,996,985 km (0.087 R)
• M14: 22,793,480 km (0.114 R)
• M15: 23,652,471 km (0.06 R)
• M16: 25,320,936 km (0.097 R)
• M17: 25,778,705 km (0.072 R)
• M18: 31,315,921 km (0.079 R)
• M19: 34,710,147 km (0.082 R)
• M20: 35,702,729 km (0.098 R)
• M21: 39,401,985 km (0.118 R)
• M22: 42,700,468 km (0.075 R)
• M23: 44,998,740 km (0.119 R)
• M24: 51,650,011 km (0.058 R)
• M25: 59,932,946 km (0.094 R)
• M26: 63,858,843 km (0.064 R)
• M27: 64,493,886 km (0.089 R)

Kuiper Belt

Range: 31.2 - 53.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 10,641 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit