🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.72 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.2

Radius: 13.9

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.32 AU - 1.56 AU

Year: 1134 Days

Day: 13.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,331,729 km

• M1: 172,935 km (0.119 R)
• M2: 983,905 km (0.105 R)
• M3: 1,766,302 km (0.079 R)
• M4: 2,391,322 km (0.049 R)
• M5: 4,373,643 km (0.114 R)
• M6: 6,191,257 km (0.087 R)
• M7: 7,699,802 km (0.098 R)
• M8: 8,412,786 km (0.091 R)
• M9: 9,229,291 km (0.056 R)
• M10: 10,066,291 km (0.055 R)
• M11: 12,071,202 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.9

Radius: 12.9

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.66 AU - 1.68 AU

Year: 1416 Days

Day: 6.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,331,729 km

• M1: 160,519 km (0.111 R)
• M2: 576,700 km (0.066 R)
• M3: 1,047,185 km (0.044 R)
• M4: 1,733,839 km (0.063 R)
• M5: 2,164,681 km (0.108 R)
• M6: 2,719,390 km (0.059 R)
• M7: 4,897,984 km (0.084 R)
• M8: 5,686,065 km (0.116 R)
• M9: 6,110,923 km (0.09 R)
• M10: 6,849,937 km (0.1 R)
• M11: 7,701,298 km (0.101 R)
• M12: 8,449,288 km (0.051 R)
• M13: 8,915,136 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.8

Radius: 10.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.86 AU - 2.06 AU

Year: 1800 Days

Day: 14.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 87,331,729 km

• M1: 130,749 km (0.1 R)
• M2: 833,859 km (0.088 R)
• M3: 1,247,497 km (0.065 R)
• M4: 2,262,369 km (0.043 R)
• M5: 2,981,486 km (0.097 R)
• M6: 3,654,227 km (0.039 R)
• M7: 4,156,876 km (0.111 R)
• M8: 4,684,807 km (0.104 R)
• M9: 6,644,090 km (0.082 R)
• M10: 7,848,802 km (0.101 R)
• M11: 8,595,146 km (0.052 R)
• M12: 9,355,552 km (0.076 R)
• M13: 10,057,166 km (0.118 R)
• M14: 10,403,485 km (0.117 R)
• M15: 10,829,539 km (0.112 R)
• M16: 11,490,313 km (0.107 R)
• M17: 12,061,328 km (0.09 R)
• M18: 13,177,927 km (0.045 R)
• M19: 13,593,061 km (0.104 R)
• M20: 14,890,822 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.9

Radius: 13.5

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.22 AU - 2.4 AU

Year: 2303 Days

Day: 6 Hours

Environment

Temp: -197 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,331,729 km

• M1: 167,998 km (0.041 R)
• M2: 620,682 km (0.085 R)
• M3: 1,132,605 km (0.086 R)
• M4: 1,908,420 km (0.084 R)
• M5: 2,705,627 km (0.071 R)
• M6: 3,733,963 km (0.119 R)
• M7: 4,328,315 km (0.068 R)
• M8: 4,781,447 km (0.073 R)
• M9: 5,266,294 km (0.096 R)
• M10: 6,147,874 km (0.12 R)
• M11: 9,389,660 km (0.044 R)
• M12: 9,894,553 km (0.046 R)
• M13: 10,763,268 km (0.061 R)
• M14: 11,236,446 km (0.099 R)
• M15: 11,682,397 km (0.055 R)
• M16: 12,224,689 km (0.111 R)
• M17: 15,389,582 km (0.044 R)
• M18: 16,452,475 km (0.106 R)
• M19: 18,667,720 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.6

Radius: 9.5

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.67 AU - 3.15 AU

Year: 3256 Days

Day: 10.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 87,331,729 km

• M1: 118,482 km (0.073 R)
• M2: 572,361 km (0.113 R)
• M3: 915,389 km (0.072 R)
• M4: 1,298,061 km (0.079 R)
• M5: 1,720,824 km (0.098 R)
• M6: 2,044,405 km (0.106 R)
• M7: 2,893,971 km (0.096 R)
• M8: 3,425,492 km (0.105 R)
• M9: 4,120,075 km (0.109 R)
• M10: 4,973,531 km (0.043 R)
• M11: 5,813,074 km (0.09 R)
• M12: 6,121,844 km (0.077 R)
• M13: 6,941,940 km (0.103 R)
• M14: 8,339,333 km (0.082 R)
• M15: 8,799,496 km (0.034 R)
• M16: 9,627,969 km (0.074 R)
• M17: 10,098,006 km (0.026 R)
• M18: 10,507,605 km (0.057 R)
• M19: 10,850,932 km (0.096 R)
• M20: 11,560,026 km (0.085 R)
• M21: 12,299,787 km (0.045 R)
• M22: 13,512,727 km (0.053 R)
• M23: 15,675,912 km (0.101 R)
• M24: 16,684,651 km (0.063 R)
• M25: 17,951,744 km (0.113 R)
• M26: 18,443,024 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.3

Radius: 13.5

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.56 AU - 5.94 AU

Year: 6791 Days

Day: 12 Hours

Environment

Temp: -223 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 87,331,729 km

• M1: 167,849 km (0.076 R)
• M2: 675,584 km (0.099 R)
• M3: 1,177,634 km (0.109 R)
• M4: 2,025,106 km (0.07 R)
• M5: 2,530,747 km (0.077 R)
• M6: 3,099,668 km (0.084 R)
• M7: 3,540,832 km (0.106 R)
• M8: 5,618,896 km (0.099 R)
• M9: 6,630,178 km (0.118 R)
• M10: 7,293,195 km (0.111 R)
• M11: 7,799,135 km (0.103 R)
• M12: 9,369,165 km (0.109 R)
• M13: 10,445,971 km (0.048 R)
• M14: 11,919,510 km (0.116 R)
• M15: 12,403,907 km (0.092 R)
• M16: 13,354,752 km (0.085 R)
• M17: 14,413,904 km (0.1 R)
• M18: 14,840,707 km (0.113 R)
• M19: 15,401,699 km (0.04 R)
• M20: 15,912,277 km (0.092 R)
• M21: 17,170,395 km (0.074 R)
• M22: 22,219,772 km (0.097 R)
• M23: 24,906,849 km (0.091 R)
• M24: 27,992,155 km (0.098 R)
• M25: 30,020,254 km (0.112 R)
• M26: 30,617,149 km (0.104 R)
• M27: 32,979,599 km (0.116 R)
• M28: 33,402,512 km (0.076 R)
• M29: 35,571,681 km (0.059 R)
• M30: 39,117,150 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.4

Radius: 3

Gravity: 42.38 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 7.64 AU - 10.84 AU

Year: 18425 Days

Day: 22.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 141.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,331,729 km

• M1: 37,250 km (0.115 R)
• M2: 147,504 km (0.105 R)
• M3: 298,597 km (0.114 R)
• M4: 667,954 km (0.082 R)
• M5: 796,160 km (0.089 R)
• M6: 1,422,825 km (0.052 R)
• M7: 1,923,978 km (0.084 R)
• M8: 2,284,060 km (0.109 R)
• M9: 2,490,655 km (0.065 R)
• M10: 3,037,435 km (0.115 R)
• M11: 5,802,453 km (0.053 R)
• M12: 6,069,634 km (0.03 R)
• M13: 6,628,532 km (0.107 R)
• M14: 7,485,429 km (0.11 R)
• M15: 8,033,555 km (0.054 R)
• M16: 9,158,082 km (0.104 R)
• M17: 10,272,587 km (0.11 R)
• M18: 11,834,388 km (0.069 R)
• M19: 14,153,305 km (0.083 R)
• M20: 15,131,226 km (0.112 R)
• M21: 16,757,654 km (0.108 R)
• M22: 18,253,035 km (0.072 R)
• M23: 20,352,940 km (0.099 R)
• M24: 20,527,521 km (0.114 R)
• M25: 22,329,128 km (0.057 R)
• M26: 23,651,274 km (0.092 R)
• M27: 23,941,194 km (0.048 R)
• M28: 32,456,006 km (0.072 R)
• M29: 33,781,443 km (0.11 R)
• M30: 34,026,335 km (0.115 R)
• M31: 39,852,424 km (0.077 R)
• M32: 40,953,165 km (0.11 R)
• M33: 41,231,567 km (0.09 R)
• M34: 43,359,447 km (0.086 R)
• M35: 45,410,434 km (0.053 R)
• M36: 47,066,482 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881

Radius: 5.5

Gravity: 29.12 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 9.97 AU - 10.63 AU

Year: 21685 Days

Day: 23.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 87,331,729 km

• M1: 68,366 km (0.108 R)
• M2: 242,947 km (0.115 R)
• M3: 666,907 km (0.096 R)
• M4: 1,049,130 km (0.087 R)
• M5: 1,320,500 km (0.091 R)
• M6: 1,602,193 km (0.043 R)
• M7: 3,261,682 km (0.112 R)
• M8: 3,906,898 km (0.073 R)
• M9: 5,324,787 km (0.072 R)
• M10: 6,260,372 km (0.057 R)
• M11: 7,103,655 km (0.113 R)
• M12: 8,234,166 km (0.1 R)
• M13: 10,524,509 km (0.07 R)
• M14: 14,272,385 km (0.096 R)
• M15: 15,640,906 km (0.105 R)
• M16: 16,658,022 km (0.083 R)
• M17: 17,538,705 km (0.104 R)
• M18: 17,899,535 km (0.107 R)
• M19: 19,011,645 km (0.112 R)
• M20: 23,593,379 km (0.064 R)
• M21: 25,499,855 km (0.069 R)
• M22: 29,236,660 km (0.093 R)
• M23: 32,503,728 km (0.093 R)
• M24: 36,296,782 km (0.061 R)
• M25: 41,479,450 km (0.088 R)
• M26: 42,766,740 km (0.092 R)
• M27: 52,906,035 km (0.117 R)
• M28: 63,049,369 km (0.116 R)
• M29: 63,683,365 km (0.066 R)
• M30: 64,749,549 km (0.109 R)
• M31: 67,577,098 km (0.097 R)
• M32: 68,463,466 km (0.062 R)
• M33: 73,710,611 km (0.108 R)
• M34: 74,179,301 km (0.096 R)
• M35: 75,834,901 km (0.101 R)
• M36: 77,999,432 km (0.057 R)
• M37: 78,486,074 km (0.062 R)
• M38: 80,949,203 km (0.113 R)
• M39: 81,948,816 km (0.045 R)
• M40: 86,548,651 km (0.115 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 197 - 16,880 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit