🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.46 AU - 0.74 AU

Year: 166 Days

Day: 43.1 Hours

Environment

Temp: 222 °C

Axial Tilt: 11.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.94 AU - 1.07 AU

Year: 358 Days

Day: 35.1 Hours

Environment

Temp: 129 °C

Axial Tilt: 29.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 51,567,016 km

• M1: 15,857 km (0.098 R)

Asteroid Belt

Center: 8.06 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Ice Giant

Semi-Major Axis: 15.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 753.7

Radius: 4.1

Gravity: 44.84 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 14.61 AU - 15.61 AU

Year: 21036 Days

Day: 21.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 51,567,016 km

• M1: 56,548 km (0.108 R)
• M2: 288,425 km (0.111 R)
• M3: 634,744 km (0.05 R)
• M4: 903,721 km (0.116 R)
• M5: 1,304,493 km (0.098 R)
• M6: 1,494,483 km (0.097 R)
• M7: 3,327,356 km (0.059 R)
• M8: 4,196,968 km (0.031 R)
• M9: 4,576,797 km (0.108 R)
• M10: 5,286,340 km (0.06 R)
• M11: 6,152,661 km (0.118 R)
• M12: 6,372,121 km (0.113 R)
• M13: 8,974,077 km (0.106 R)
• M14: 11,732,662 km (0.086 R)
• M15: 12,275,852 km (0.109 R)
• M16: 12,835,647 km (0.089 R)
• M17: 13,559,252 km (0.075 R)
• M18: 14,850,880 km (0.069 R)
• M19: 16,981,602 km (0.097 R)
• M20: 17,764,298 km (0.091 R)
• M21: 22,040,853 km (0.079 R)
• M22: 24,799,886 km (0.12 R)
• M23: 26,033,321 km (0.072 R)
• M24: 28,500,638 km (0.106 R)
• M25: 29,110,250 km (0.116 R)
• M26: 32,553,245 km (0.057 R)
• M27: 33,894,240 km (0.102 R)
• M28: 39,778,223 km (0.063 R)
• M29: 41,620,970 km (0.075 R)
• M30: 46,643,270 km (0.097 R)
• M31: 50,088,808 km (0.042 R)
• M32: 52,417,299 km (0.053 R)
• M33: 54,816,699 km (0.099 R)
• M34: 55,758,866 km (0.034 R)
• M35: 58,845,818 km (0.086 R)
• M36: 65,147,479 km (0.07 R)
• M37: 67,487,339 km (0.114 R)

Planet 4 - Ice Giant

Semi-Major Axis: 17.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119.5

Radius: 7.5

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 16.87 AU - 18.57 AU

Year: 26716 Days

Day: 15.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,567,016 km

• M1: 94,247 km (0.116 R)
• M2: 523,892 km (0.032 R)
• M3: 1,175,540 km (0.118 R)
• M4: 1,748,500 km (0.066 R)
• M5: 2,262,518 km (0.075 R)
• M6: 3,007,815 km (0.058 R)
• M7: 3,241,487 km (0.027 R)
• M8: 3,487,426 km (0.066 R)
• M9: 3,825,666 km (0.09 R)
• M10: 4,100,777 km (0.109 R)
• M11: 4,478,063 km (0.111 R)
• M12: 4,878,237 km (0.056 R)
• M13: 5,302,197 km (0.099 R)
• M14: 6,801,467 km (0.113 R)
• M15: 8,845,423 km (0.103 R)
• M16: 10,136,453 km (0.086 R)
• M17: 11,776,793 km (0.1 R)
• M18: 21,121,275 km (0.066 R)
• M19: 21,377,386 km (0.113 R)
• M20: 22,070,323 km (0.12 R)
• M21: 31,481,974 km (0.115 R)
• M22: 33,062,476 km (0.098 R)
• M23: 35,290,886 km (0.072 R)
• M24: 42,846,476 km (0.055 R)
• M25: 45,633,933 km (0.088 R)

Kuiper Belt

Range: 30.6 - 45.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 14,861 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit