🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.5

Radius: 12.3

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.97 AU - 1.04 AU

Year: 656 Days

Day: 5.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,668,335 km

• M1: 153,787 km (0.115 R)
• M2: 542,292 km (0.066 R)
• M3: 1,034,918 km (0.091 R)
• M4: 1,498,073 km (0.105 R)
• M5: 2,056,073 km (0.028 R)
• M6: 2,804,661 km (0.075 R)
• M7: 3,316,585 km (0.099 R)
• M8: 4,100,926 km (0.103 R)
• M9: 4,731,930 km (0.086 R)
• M10: 5,926,918 km (0.053 R)
• M11: 6,694,954 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.6

Radius: 14.4

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.66 AU - 2.6 AU

Year: 2039 Days

Day: 12.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,668,335 km

• M1: 179,069 km (0.115 R)
• M2: 657,183 km (0.093 R)
• M3: 1,284,148 km (0.119 R)
• M4: 2,139,998 km (0.106 R)
• M5: 2,868,838 km (0.106 R)
• M6: 3,437,759 km (0.111 R)
• M7: 6,270,544 km (0.12 R)
• M8: 6,894,667 km (0.038 R)
• M9: 8,459,610 km (0.111 R)
• M10: 9,291,524 km (0.045 R)
• M11: 10,659,895 km (0.08 R)
• M12: 11,432,120 km (0.118 R)
• M13: 11,994,608 km (0.077 R)
• M14: 13,045,234 km (0.075 R)
• M15: 16,214,016 km (0.119 R)
• M16: 16,719,806 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.5

Radius: 10.3

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.73 AU - 2.65 AU

Year: 2126 Days

Day: 6.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,668,335 km

• M1: 129,552 km (0.055 R)
• M2: 519,105 km (0.111 R)
• M3: 840,890 km (0.09 R)
• M4: 1,311,076 km (0.077 R)
• M5: 2,256,385 km (0.071 R)
• M6: 3,638,071 km (0.119 R)
• M7: 4,013,860 km (0.072 R)
• M8: 4,510,525 km (0.093 R)
• M9: 5,172,795 km (0.102 R)
• M10: 5,604,983 km (0.051 R)
• M11: 6,868,038 km (0.118 R)
• M12: 7,968,480 km (0.092 R)
• M13: 8,340,829 km (0.109 R)
• M14: 8,936,528 km (0.086 R)
• M15: 9,882,884 km (0.05 R)
• M16: 10,414,256 km (0.101 R)
• M17: 12,123,411 km (0.112 R)
• M18: 12,810,066 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.8

Radius: 11

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.34 AU - 2.94 AU

Year: 2814 Days

Day: 5.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,668,335 km

• M1: 139,425 km (0.083 R)
• M2: 818,450 km (0.11 R)
• M3: 1,201,869 km (0.038 R)
• M4: 1,682,228 km (0.053 R)
• M5: 2,838,620 km (0.075 R)
• M6: 3,530,659 km (0.106 R)
• M7: 4,871,804 km (0.108 R)
• M8: 5,437,284 km (0.076 R)
• M9: 6,612,824 km (0.117 R)
• M10: 7,330,146 km (0.107 R)
• M11: 8,400,220 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.8

Radius: 8

Gravity: 11.47 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.7 AU - 3.52 AU

Year: 3598 Days

Day: 6.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,668,335 km

• M1: 100,530 km (0.096 R)
• M2: 476,469 km (0.095 R)
• M3: 995,574 km (0.118 R)
• M4: 1,790,088 km (0.083 R)
• M5: 2,175,901 km (0.105 R)
• M6: 4,099,580 km (0.099 R)
• M7: 4,651,746 km (0.098 R)
• M8: 5,680,830 km (0.107 R)
• M9: 6,426,575 km (0.034 R)
• M10: 7,564,865 km (0.071 R)
• M11: 7,903,704 km (0.103 R)
• M12: 8,611,601 km (0.106 R)
• M13: 10,072,275 km (0.079 R)
• M14: 11,557,483 km (0.091 R)
• M15: 11,826,011 km (0.076 R)
• M16: 14,279,865 km (0.09 R)
• M17: 20,168,635 km (0.092 R)
• M18: 21,218,962 km (0.118 R)
• M19: 24,003,577 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.1

Radius: 13

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.54 AU - 5.78 AU

Year: 7689 Days

Day: 9.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,668,335 km

• M1: 226,192 km (0.071 R)
• M2: 879,486 km (0.042 R)
• M3: 1,483,412 km (0.049 R)
• M4: 2,113,818 km (0.087 R)
• M5: 3,029,806 km (0.12 R)
• M6: 5,298,906 km (0.111 R)
• M7: 8,761,798 km (0.114 R)
• M8: 9,280,753 km (0.096 R)
• M9: 16,973,973 km (0.117 R)
• M10: 20,779,892 km (0.098 R)
• M11: 21,203,553 km (0.064 R)
• M12: 22,509,244 km (0.063 R)
• M13: 24,567,262 km (0.115 R)
• M14: 26,914,452 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.1

Radius: 6.9

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.87 AU - 5.99 AU

Year: 9473 Days

Day: 23.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 24,668,335 km

• M1: 85,869 km (0.111 R)
• M2: 318,494 km (0.112 R)
• M3: 544,686 km (0.075 R)
• M4: 961,914 km (0.112 R)
• M5: 1,336,059 km (0.1 R)
• M6: 2,713,556 km (0.078 R)
• M7: 4,989,239 km (0.117 R)
• M8: 6,205,020 km (0.086 R)
• M9: 7,569,503 km (0.049 R)
• M10: 8,301,934 km (0.069 R)
• M11: 8,705,848 km (0.105 R)
• M12: 9,553,170 km (0.101 R)
• M13: 11,859,820 km (0.055 R)
• M14: 14,571,431 km (0.065 R)
• M15: 14,804,654 km (0.112 R)
• M16: 15,159,351 km (0.064 R)
• M17: 16,008,917 km (0.069 R)
• M18: 17,802,745 km (0.069 R)
• M19: 18,069,478 km (0.099 R)
• M20: 20,300,431 km (0.045 R)
• M21: 20,885,658 km (0.105 R)
• M22: 24,062,668 km (0.048 R)
• M23: 24,635,478 km (0.088 R)
• M24: 26,064,287 km (0.11 R)
• M25: 27,994,399 km (0.083 R)
• M26: 29,178,616 km (0.072 R)

Asteroid Belt

Center: 7.76 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 9.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.6

Radius: 5.7

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.71 AU - 11.47 AU

Year: 19482 Days

Day: 20.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,668,335 km

• M1: 173,534 km (0.075 R)
• M2: 869,313 km (0.096 R)
• M3: 1,054,815 km (0.094 R)
• M4: 1,452,745 km (0.111 R)
• M5: 2,081,654 km (0.047 R)
• M6: 2,282,564 km (0.075 R)
• M7: 3,090,542 km (0.083 R)
• M8: 3,816,391 km (0.056 R)
• M9: 5,383,878 km (0.071 R)
• M10: 5,654,052 km (0.059 R)
• M11: 6,047,344 km (0.104 R)
• M12: 8,726,642 km (0.079 R)
• M13: 9,444,413 km (0.104 R)
• M14: 10,911,220 km (0.056 R)
• M15: 12,060,730 km (0.072 R)
• M16: 14,859,108 km (0.096 R)
• M17: 15,444,933 km (0.107 R)
• M18: 19,601,809 km (0.105 R)
• M19: 23,649,628 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 526 - 16,026 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit