🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.83 AU - 1.13 AU

Year: 349 Days

Day: 12.5 Hours

Environment

Temp: 155 °C

Axial Tilt: 13.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.09 AU - 2.27 AU

Year: 1158 Days

Day: 19.9 Hours

Environment

Temp: -71 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 100,649,106 km

• M1: 46,375 km (0.064 R)
• M2: 1,205,011 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.6

Radius: 11.5

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.64 AU - 7.58 AU

Year: 5435 Days

Day: 13.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 66.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 100,649,106 km

• M1: 143,016 km (0.071 R)
• M2: 512,373 km (0.098 R)
• M3: 1,054,665 km (0.074 R)
• M4: 1,546,992 km (0.12 R)
• M5: 2,205,372 km (0.079 R)
• M6: 2,658,055 km (0.1 R)
• M7: 3,689,831 km (0.076 R)
• M8: 4,170,938 km (0.118 R)
• M9: 4,546,878 km (0.091 R)
• M10: 6,375,113 km (0.069 R)
• M11: 7,037,832 km (0.097 R)
• M12: 8,280,242 km (0.102 R)
• M13: 8,953,881 km (0.095 R)
• M14: 12,303,228 km (0.115 R)
• M15: 15,950,873 km (0.093 R)
• M16: 16,758,402 km (0.062 R)
• M17: 18,205,911 km (0.101 R)
• M18: 20,130,637 km (0.11 R)
• M19: 20,801,285 km (0.052 R)
• M20: 22,902,985 km (0.115 R)
• M21: 25,219,658 km (0.081 R)

Planet 4 - Ice Giant

Semi-Major Axis: 19.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632.7

Radius: 3.9

Gravity: 41.6 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 18.77 AU - 20.79 AU

Year: 31660 Days

Day: 23.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 100,649,106 km

• M1: 51,013 km (0.112 R)
• M2: 178,769 km (0.074 R)
• M3: 374,593 km (0.097 R)
• M4: 596,896 km (0.112 R)
• M5: 853,306 km (0.09 R)
• M6: 1,076,506 km (0.084 R)
• M7: 2,737,641 km (0.1 R)
• M8: 4,361,825 km (0.092 R)
• M9: 4,820,791 km (0.087 R)
• M10: 5,789,438 km (0.025 R)
• M11: 8,047,019 km (0.092 R)
• M12: 8,973,479 km (0.091 R)
• M13: 9,400,281 km (0.077 R)
• M14: 10,098,305 km (0.084 R)
• M15: 10,966,870 km (0.051 R)
• M16: 11,313,788 km (0.119 R)
• M17: 11,596,528 km (0.115 R)
• M18: 12,851,355 km (0.086 R)
• M19: 13,314,958 km (0.113 R)
• M20: 15,110,582 km (0.113 R)
• M21: 15,540,077 km (0.117 R)
• M22: 21,346,569 km (0.092 R)
• M23: 26,668,364 km (0.074 R)
• M24: 27,548,597 km (0.067 R)
• M25: 28,189,176 km (0.108 R)
• M26: 30,441,072 km (0.091 R)
• M27: 31,820,365 km (0.034 R)
• M28: 33,240,647 km (0.091 R)
• M29: 34,112,802 km (0.066 R)
• M30: 34,406,762 km (0.079 R)
• M31: 36,512,951 km (0.038 R)
• M32: 41,813,951 km (0.092 R)
• M33: 42,150,696 km (0.116 R)
• M34: 54,307,767 km (0.027 R)
• M35: 57,987,426 km (0.089 R)
• M36: 68,838,956 km (0.109 R)
• M37: 76,359,092 km (0.028 R)
• M38: 86,573,634 km (0.049 R)
• M39: 95,023,071 km (0.095 R)

Kuiper Belt

Range: 30.5 - 51.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 13,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit