🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.45 AU - 0.63 AU

Year: 147 Days

Day: 23.2 Hours

Environment

Temp: 151 °C

Axial Tilt: 19 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,868,756 km

• M1: 116,836 km (0.066 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.94 AU - 1.12 AU

Year: 388 Days

Day: 35.2 Hours

Environment

Temp: 4 °C

Axial Tilt: 36.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.11 AU - 1.17 AU

Year: 451 Days

Day: 22.2 Hours

Environment

Temp: 19 °C

Axial Tilt: 35.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 53,868,756 km

• M1: 293,810 km (0.055 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.05 AU - 1.41 AU

Year: 506 Days

Day: 18.6 Hours

Environment

Temp: 4 °C

Axial Tilt: 15.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 53,868,756 km

• M1: 642,822 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.32 AU - 1.56 AU

Year: 641 Days

Day: 47.9 Hours

Environment

Temp: -31 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.43 AU - 2.37 AU

Year: 971 Days

Day: 31.1 Hours

Environment

Temp: -59 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,868,756 km

• M1: 233,971 km (0.096 R)
• M2: 908,059 km (0.107 R)

Asteroid Belt

Center: 8.08 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 14.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 243.8

Radius: 3.8

Gravity: 16.88 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 12.46 AU - 16.06 AU

Year: 19970 Days

Day: 24.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 53,868,756 km

• M1: 49,068 km (0.116 R)
• M2: 179,667 km (0.116 R)
• M3: 325,974 km (0.102 R)
• M4: 597,195 km (0.098 R)
• M5: 782,098 km (0.06 R)
• M6: 939,624 km (0.076 R)
• M7: 1,559,408 km (0.108 R)
• M8: 2,414,659 km (0.109 R)
• M9: 2,885,444 km (0.042 R)
• M10: 3,094,731 km (0.105 R)
• M11: 4,386,359 km (0.098 R)
• M12: 5,599,598 km (0.054 R)
• M13: 6,111,821 km (0.088 R)
• M14: 8,381,669 km (0.101 R)
• M15: 9,001,753 km (0.052 R)
• M16: 9,198,623 km (0.098 R)
• M17: 10,172,805 km (0.082 R)
• M18: 10,767,307 km (0.084 R)
• M19: 12,143,906 km (0.105 R)
• M20: 15,241,031 km (0.05 R)
• M21: 15,520,779 km (0.094 R)
• M22: 15,661,850 km (0.113 R)
• M23: 16,380,219 km (0.101 R)
• M24: 19,148,228 km (0.073 R)
• M25: 19,720,440 km (0.11 R)
• M26: 25,003,489 km (0.085 R)
• M27: 25,294,756 km (0.029 R)
• M28: 28,438,854 km (0.075 R)
• M29: 29,940,368 km (0.05 R)
• M30: 33,100,324 km (0.114 R)
• M31: 33,334,295 km (0.052 R)
• M32: 37,353,840 km (0.107 R)
• M33: 37,862,024 km (0.114 R)
• M34: 40,338,767 km (0.094 R)
• M35: 44,323,904 km (0.054 R)
• M36: 49,168,631 km (0.117 R)
• M37: 49,473,213 km (0.092 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 19,871 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit