🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.65 AU - 0.67 AU

Year: 187 Days

Day: 37.2 Hours

Environment

Temp: 202 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Gas Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.5

Radius: 12.4

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.26 AU - 12.04 AU

Year: 10440 Days

Day: 5.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,701,777 km

• M1: 154,235 km (0.1 R)
• M2: 574,306 km (0.103 R)
• M3: 1,013,675 km (0.116 R)
• M4: 2,401,495 km (0.093 R)
• M5: 3,655,274 km (0.095 R)
• M6: 7,141,354 km (0.09 R)
• M7: 8,751,027 km (0.093 R)
• M8: 9,549,580 km (0.041 R)
• M9: 15,397,361 km (0.069 R)
• M10: 16,101,817 km (0.071 R)
• M11: 18,845,741 km (0.084 R)
• M12: 25,774,367 km (0.072 R)
• M13: 28,068,749 km (0.107 R)
• M14: 34,775,222 km (0.025 R)

Planet 3 - Ice Giant

Semi-Major Axis: 14.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 268.9

Radius: 7.9

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 13.54 AU - 16.02 AU

Year: 19788 Days

Day: 21.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,701,777 km

• M1: 98,435 km (0.12 R)
• M2: 409,749 km (0.087 R)
• M3: 1,234,182 km (0.11 R)
• M4: 1,634,357 km (0.108 R)
• M5: 1,959,134 km (0.042 R)
• M6: 2,506,662 km (0.077 R)
• M7: 3,932,030 km (0.091 R)
• M8: 4,248,131 km (0.054 R)
• M9: 5,096,650 km (0.093 R)
• M10: 6,795,782 km (0.104 R)
• M11: 7,294,691 km (0.075 R)
• M12: 7,773,405 km (0.084 R)
• M13: 9,743,908 km (0.117 R)
• M14: 12,817,994 km (0.069 R)
• M15: 13,709,598 km (0.048 R)
• M16: 14,371,269 km (0.064 R)
• M17: 23,394,265 km (0.108 R)
• M18: 26,505,302 km (0.064 R)
• M19: 30,212,038 km (0.072 R)
• M20: 31,105,287 km (0.118 R)
• M21: 47,144,273 km (0.086 R)
• M22: 52,549,842 km (0.032 R)

Planet 4 - Ice Giant

Semi-Major Axis: 18.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.6

Radius: 4.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 14.88 AU - 23.08 AU

Year: 28796 Days

Day: 17.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,701,777 km

• M1: 52,658 km (0.113 R)
• M2: 275,260 km (0.076 R)
• M3: 799,002 km (0.12 R)
• M4: 1,187,508 km (0.074 R)
• M5: 1,661,883 km (0.091 R)
• M6: 2,198,640 km (0.109 R)
• M7: 2,758,884 km (0.084 R)
• M8: 2,972,659 km (0.038 R)
• M9: 3,290,256 km (0.085 R)
• M10: 4,730,285 km (0.106 R)
• M11: 6,656,806 km (0.072 R)
• M12: 7,239,340 km (0.114 R)
• M13: 7,522,529 km (0.061 R)
• M14: 9,474,482 km (0.114 R)
• M15: 10,983,625 km (0.117 R)
• M16: 13,235,223 km (0.086 R)
• M17: 14,341,798 km (0.088 R)
• M18: 20,011,558 km (0.071 R)
• M19: 26,247,994 km (0.065 R)
• M20: 30,843,640 km (0.092 R)
• M21: 34,452,090 km (0.117 R)
• M22: 36,064,456 km (0.098 R)
• M23: 37,007,970 km (0.059 R)
• M24: 43,545,397 km (0.035 R)
• M25: 45,156,117 km (0.079 R)

Kuiper Belt

Range: 31.5 - 49.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 12,655 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit