🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.6

Radius: 9.2

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.54 AU - 0.84 AU

Year: 389 Days

Day: 13.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,919,551 km

• M1: 114,891 km (0.09 R)
• M2: 460,911 km (0.11 R)
• M3: 816,505 km (0.108 R)
• M4: 1,139,487 km (0.087 R)
• M5: 1,447,509 km (0.102 R)
• M6: 2,183,979 km (0.113 R)
• M7: 2,759,482 km (0.044 R)
• M8: 3,808,762 km (0.108 R)
• M9: 4,184,252 km (0.089 R)
• M10: 4,496,463 km (0.079 R)
• M11: 5,009,733 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.3

Radius: 11.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.78 AU - 1.06 AU

Year: 599 Days

Day: 7 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,919,551 km

• M1: 143,016 km (0.11 R)
• M2: 604,375 km (0.087 R)
• M3: 992,133 km (0.067 R)
• M4: 1,552,527 km (0.059 R)
• M5: 1,997,431 km (0.102 R)
• M6: 3,073,339 km (0.066 R)
• M7: 3,910,040 km (0.067 R)
• M8: 4,347,913 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.9

Radius: 13.3

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.82 AU - 2.52 AU

Year: 2168 Days

Day: 8.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 16,919,551 km

• M1: 165,455 km (0.062 R)
• M2: 815,159 km (0.112 R)
• M3: 1,461,122 km (0.118 R)
• M4: 2,066,246 km (0.112 R)
• M5: 2,541,518 km (0.116 R)
• M6: 3,460,049 km (0.055 R)
• M7: 4,329,811 km (0.081 R)
• M8: 4,859,088 km (0.064 R)
• M9: 5,758,022 km (0.104 R)
• M10: 6,374,365 km (0.114 R)
• M11: 6,979,937 km (0.074 R)
• M12: 8,154,730 km (0.103 R)
• M13: 8,647,505 km (0.099 R)
• M14: 9,192,939 km (0.115 R)
• M15: 12,838,489 km (0.103 R)
• M16: 13,506,893 km (0.107 R)
• M17: 14,867,784 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.6

Radius: 11.8

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.67 AU - 5.31 AU

Year: 6453 Days

Day: 12 Hours

Environment

Temp: -221 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,919,551 km

• M1: 147,204 km (0.073 R)
• M2: 547,678 km (0.08 R)
• M3: 974,780 km (0.1 R)
• M4: 1,666,520 km (0.096 R)
• M5: 2,067,293 km (0.089 R)
• M6: 2,783,119 km (0.119 R)
• M7: 3,849,004 km (0.06 R)
• M8: 4,368,557 km (0.115 R)
• M9: 6,644,240 km (0.103 R)
• M10: 7,496,499 km (0.085 R)
• M11: 8,420,116 km (0.043 R)
• M12: 10,365,038 km (0.101 R)
• M13: 16,830,658 km (0.114 R)
• M14: 17,487,542 km (0.119 R)
• M15: 26,042,895 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.7

Radius: 11

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 5.08 AU - 5.28 AU

Year: 7996 Days

Day: 6.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 16,919,551 km

• M1: 136,882 km (0.044 R)
• M2: 532,868 km (0.106 R)
• M3: 933,192 km (0.048 R)
• M4: 1,330,374 km (0.056 R)
• M5: 1,705,416 km (0.105 R)
• M6: 2,231,103 km (0.113 R)
• M7: 2,731,208 km (0.109 R)
• M8: 3,368,794 km (0.103 R)
• M9: 4,482,850 km (0.096 R)
• M10: 5,082,139 km (0.098 R)
• M11: 5,642,084 km (0.111 R)
• M12: 6,112,719 km (0.085 R)
• M13: 6,541,765 km (0.12 R)
• M14: 7,460,595 km (0.055 R)
• M15: 8,145,604 km (0.096 R)
• M16: 8,706,895 km (0.098 R)
• M17: 10,407,673 km (0.047 R)
• M18: 13,386,167 km (0.032 R)
• M19: 16,699,760 km (0.076 R)
• M20: 20,160,856 km (0.078 R)
• M21: 24,979,404 km (0.067 R)
• M22: 28,647,693 km (0.058 R)
• M23: 31,477,935 km (0.114 R)
• M24: 34,077,348 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 914.3

Radius: 7.7

Gravity: 15.42 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 4.61 AU - 7.33 AU

Year: 9894 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 16,919,551 km

• M1: 173,234 km (0.08 R)
• M2: 489,634 km (0.108 R)
• M3: 864,975 km (0.058 R)
• M4: 1,256,323 km (0.079 R)
• M5: 2,576,973 km (0.116 R)
• M6: 3,319,278 km (0.106 R)
• M7: 4,283,436 km (0.097 R)
• M8: 5,916,446 km (0.091 R)
• M9: 7,578,179 km (0.047 R)
• M10: 8,331,853 km (0.102 R)
• M11: 10,513,589 km (0.112 R)
• M12: 12,026,472 km (0.052 R)
• M13: 14,196,389 km (0.104 R)
• M14: 15,339,167 km (0.105 R)
• M15: 23,056,173 km (0.092 R)
• M16: 31,766,061 km (0.113 R)
• M17: 34,538,558 km (0.084 R)
• M18: 36,597,324 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.8

Radius: 4

Gravity: 44.43 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 6.36 AU - 7.64 AU

Year: 12561 Days

Day: 16.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 16,919,551 km

• M1: 49,816 km (0.064 R)
• M2: 264,040 km (0.093 R)
• M3: 436,975 km (0.099 R)
• M4: 810,671 km (0.06 R)
• M5: 1,951,803 km (0.054 R)
• M6: 2,115,314 km (0.103 R)
• M7: 2,347,490 km (0.084 R)
• M8: 2,794,488 km (0.082 R)
• M9: 3,245,825 km (0.045 R)
• M10: 6,022,960 km (0.1 R)
• M11: 7,105,450 km (0.087 R)
• M12: 7,449,525 km (0.052 R)
• M13: 9,086,874 km (0.101 R)
• M14: 9,288,083 km (0.096 R)
• M15: 9,699,328 km (0.114 R)
• M16: 11,120,059 km (0.117 R)
• M17: 12,120,419 km (0.096 R)
• M18: 12,487,383 km (0.117 R)
• M19: 12,861,827 km (0.111 R)
• M20: 13,698,527 km (0.085 R)
• M21: 14,639,498 km (0.077 R)
• M22: 14,777,278 km (0.117 R)
• M23: 15,337,372 km (0.048 R)
• M24: 18,192,447 km (0.114 R)
• M25: 19,576,976 km (0.101 R)
• M26: 22,279,760 km (0.087 R)
• M27: 26,020,306 km (0.1 R)
• M28: 27,668,725 km (0.101 R)
• M29: 29,825,477 km (0.092 R)
• M30: 31,400,294 km (0.114 R)
• M31: 35,702,280 km (0.093 R)
• M32: 36,836,082 km (0.1 R)
• M33: 39,841,952 km (0.056 R)
• M34: 42,305,530 km (0.109 R)
• M35: 43,007,443 km (0.066 R)
• M36: 44,434,457 km (0.119 R)
• M37: 45,305,715 km (0.107 R)
• M38: 51,565,937 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15.4

Radius: 5.4

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 6.66 AU - 8.38 AU

Year: 13987 Days

Day: 23.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,919,551 km

• M1: 67,169 km (0.066 R)
• M2: 303,085 km (0.107 R)
• M3: 689,497 km (0.103 R)
• M4: 879,935 km (0.083 R)
• M5: 1,954,347 km (0.111 R)
• M6: 3,780,488 km (0.033 R)
• M7: 6,786,059 km (0.096 R)
• M8: 10,380,147 km (0.071 R)
• M9: 12,270,765 km (0.102 R)
• M10: 12,892,644 km (0.115 R)
• M11: 15,543,219 km (0.033 R)
• M12: 16,818,690 km (0.066 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 15,126 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit