🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.02 AU - 1.04 AU

Year: 374 Days

Day: 32.4 Hours

Environment

Temp: 26 °C

Axial Tilt: 29.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.14 AU - 2.36 AU

Year: 1209 Days

Day: 24 Hours

Environment

Temp: -76 °C

Axial Tilt: 20.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.99 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.6

Radius: 9

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 7.47 AU - 7.97 AU

Year: 7682 Days

Day: 14.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 112,206,761 km

• M1: 122,521 km (0.105 R)
• M2: 489,634 km (0.114 R)
• M3: 1,556,117 km (0.118 R)
• M4: 2,758,136 km (0.117 R)
• M5: 3,401,856 km (0.059 R)
• M6: 3,898,670 km (0.087 R)
• M7: 6,144,882 km (0.118 R)
• M8: 10,605,143 km (0.056 R)
• M9: 12,553,805 km (0.099 R)
• M10: 16,389,644 km (0.051 R)
• M11: 16,794,156 km (0.117 R)
• M12: 20,406,646 km (0.086 R)

Planet 4 - Ice Giant

Semi-Major Axis: 13.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.4

Radius: 4

Gravity: 48.65 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 11.61 AU - 14.83 AU

Year: 17216 Days

Day: 20.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 169.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 112,206,761 km

• M1: 49,816 km (0.096 R)
• M2: 511,774 km (0.081 R)
• M3: 677,379 km (0.077 R)
• M4: 993,479 km (0.117 R)
• M5: 1,171,651 km (0.078 R)
• M6: 1,431,801 km (0.111 R)
• M7: 5,878,598 km (0.077 R)
• M8: 6,768,406 km (0.091 R)
• M9: 6,902,446 km (0.06 R)
• M10: 7,268,661 km (0.064 R)
• M11: 13,068,421 km (0.054 R)
• M12: 13,276,512 km (0.073 R)
• M13: 14,350,325 km (0.104 R)
• M14: 17,410,948 km (0.071 R)
• M15: 18,959,735 km (0.079 R)
• M16: 20,691,629 km (0.115 R)
• M17: 23,127,232 km (0.064 R)
• M18: 25,747,290 km (0.091 R)
• M19: 25,965,104 km (0.088 R)
• M20: 32,067,949 km (0.054 R)
• M21: 48,978,642 km (0.072 R)
• M22: 50,155,529 km (0.083 R)
• M23: 54,692,084 km (0.035 R)
• M24: 65,578,620 km (0.068 R)
• M25: 68,248,643 km (0.091 R)
• M26: 68,457,033 km (0.116 R)
• M27: 69,716,048 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 14.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.3

Radius: 7.3

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 13.16 AU - 16.72 AU

Year: 20682 Days

Day: 17.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 112,206,761 km

• M1: 90,806 km (0.118 R)
• M2: 393,442 km (0.06 R)
• M3: 872,455 km (0.082 R)
• M4: 1,235,529 km (0.109 R)
• M5: 2,286,903 km (0.068 R)
• M6: 2,935,559 km (0.087 R)
• M7: 3,328,553 km (0.089 R)
• M8: 4,885,717 km (0.111 R)
• M9: 5,261,357 km (0.117 R)
• M10: 9,352,111 km (0.115 R)
• M11: 11,936,713 km (0.106 R)
• M12: 14,471,948 km (0.09 R)
• M13: 15,901,805 km (0.117 R)
• M14: 17,267,185 km (0.116 R)
• M15: 23,705,877 km (0.1 R)
• M16: 28,097,771 km (0.1 R)
• M17: 30,200,220 km (0.099 R)
• M18: 31,231,847 km (0.114 R)
• M19: 32,643,602 km (0.097 R)
• M20: 37,787,824 km (0.047 R)
• M21: 44,761,179 km (0.072 R)
• M22: 47,161,776 km (0.034 R)
• M23: 49,331,543 km (0.112 R)
• M24: 56,238,926 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 20.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 834.8

Radius: 6.5

Gravity: 19.76 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 19.2 AU - 21.14 AU

Year: 32444 Days

Day: 18.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 112,206,761 km

• M1: 80,783 km (0.091 R)
• M2: 362,924 km (0.115 R)
• M3: 734,825 km (0.088 R)
• M4: 1,392,307 km (0.119 R)
• M5: 2,006,407 km (0.118 R)
• M6: 2,312,484 km (0.119 R)
• M7: 2,930,173 km (0.083 R)
• M8: 3,652,582 km (0.052 R)
• M9: 5,355,903 km (0.089 R)
• M10: 8,567,320 km (0.089 R)
• M11: 9,183,514 km (0.09 R)
• M12: 10,435,199 km (0.054 R)
• M13: 11,137,711 km (0.096 R)
• M14: 12,097,531 km (0.088 R)
• M15: 15,218,442 km (0.114 R)
• M16: 16,213,268 km (0.062 R)
• M17: 20,304,171 km (0.098 R)
• M18: 21,175,429 km (0.111 R)
• M19: 25,033,857 km (0.082 R)
• M20: 26,803,600 km (0.116 R)
• M21: 28,117,518 km (0.098 R)
• M22: 28,385,448 km (0.111 R)
• M23: 32,463,336 km (0.105 R)
• M24: 33,955,425 km (0.112 R)
• M25: 39,203,169 km (0.103 R)
• M26: 43,520,713 km (0.101 R)
• M27: 45,516,947 km (0.112 R)
• M28: 46,818,598 km (0.115 R)
• M29: 47,573,469 km (0.084 R)
• M30: 48,720,885 km (0.117 R)
• M31: 51,669,908 km (0.069 R)
• M32: 54,944,456 km (0.118 R)
• M33: 60,556,320 km (0.11 R)
• M34: 63,961,467 km (0.081 R)
• M35: 75,712,679 km (0.108 R)
• M36: 86,823,762 km (0.072 R)
• M37: 90,561,315 km (0.114 R)
• M38: 98,355,514 km (0.111 R)
• M39: 108,218,501 km (0.055 R)
• M40: 111,870,784 km (0.116 R)

Kuiper Belt

Range: 30.6 - 60.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 19,368 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit