🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.1

Radius: 12.1

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.11 AU - 1.17 AU

Year: 856 Days

Day: 11.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,613,700 km

• M1: 150,495 km (0.092 R)
• M2: 543,339 km (0.11 R)
• M3: 1,045,540 km (0.073 R)
• M4: 1,585,887 km (0.12 R)
• M5: 2,036,775 km (0.072 R)
• M6: 2,454,452 km (0.107 R)
• M7: 3,203,040 km (0.116 R)
• M8: 3,603,663 km (0.111 R)
• M9: 4,330,709 km (0.097 R)
• M10: 5,518,067 km (0.118 R)
• M11: 6,381,546 km (0.087 R)
• M12: 7,086,750 km (0.066 R)
• M13: 7,492,909 km (0.1 R)
• M14: 7,962,347 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.5

Radius: 8.9

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.04 AU - 1.36 AU

Year: 924 Days

Day: 12 Hours

Environment

Temp: -190 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,613,700 km

• M1: 111,151 km (0.119 R)
• M2: 438,172 km (0.091 R)
• M3: 1,231,190 km (0.102 R)
• M4: 1,761,365 km (0.108 R)
• M5: 2,908,183 km (0.109 R)
• M6: 3,226,527 km (0.071 R)
• M7: 3,976,311 km (0.078 R)
• M8: 5,745,007 km (0.068 R)
• M9: 6,306,897 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.1

Radius: 10.3

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.1 AU - 1.6 AU

Year: 1103 Days

Day: 12.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,613,700 km

• M1: 128,505 km (0.109 R)
• M2: 550,670 km (0.118 R)
• M3: 980,614 km (0.101 R)
• M4: 1,348,326 km (0.106 R)
• M5: 1,763,759 km (0.111 R)
• M6: 2,097,661 km (0.091 R)
• M7: 2,543,164 km (0.074 R)
• M8: 3,144,398 km (0.059 R)
• M9: 3,464,836 km (0.06 R)
• M10: 3,837,933 km (0.044 R)
• M11: 4,321,284 km (0.076 R)
• M12: 5,141,230 km (0.069 R)
• M13: 6,516,633 km (0.068 R)
• M14: 7,593,588 km (0.072 R)
• M15: 8,304,926 km (0.118 R)
• M16: 8,922,017 km (0.082 R)
• M17: 9,540,455 km (0.109 R)
• M18: 9,889,766 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.6

Radius: 13.9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.97 AU - 3.21 AU

Year: 2930 Days

Day: 7.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,613,700 km

• M1: 172,935 km (0.117 R)
• M2: 614,698 km (0.118 R)
• M3: 1,052,571 km (0.078 R)
• M4: 1,616,255 km (0.116 R)
• M5: 2,493,647 km (0.075 R)
• M6: 3,612,938 km (0.08 R)
• M7: 5,505,501 km (0.085 R)
• M8: 5,968,207 km (0.114 R)
• M9: 6,401,293 km (0.074 R)
• M10: 6,972,308 km (0.092 R)
• M11: 8,789,174 km (0.037 R)
• M12: 11,930,879 km (0.11 R)
• M13: 12,842,828 km (0.029 R)
• M14: 13,522,152 km (0.07 R)
• M15: 14,035,571 km (0.106 R)
• M16: 16,220,598 km (0.103 R)
• M17: 16,694,225 km (0.086 R)
• M18: 17,613,803 km (0.106 R)
• M19: 18,339,652 km (0.11 R)
• M20: 20,090,994 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.2

Radius: 14.5

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.76 AU - 3.32 AU

Year: 3726 Days

Day: 9.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,613,700 km

• M1: 180,265 km (0.097 R)
• M2: 1,148,014 km (0.105 R)
• M3: 2,032,137 km (0.083 R)
• M4: 2,613,924 km (0.106 R)
• M5: 3,081,866 km (0.098 R)
• M6: 3,755,206 km (0.114 R)
• M7: 4,263,539 km (0.116 R)
• M8: 5,933,351 km (0.112 R)
• M9: 7,032,297 km (0.106 R)
• M10: 7,726,880 km (0.115 R)
• M11: 12,626,359 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172

Radius: 12.7

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.12 AU - 4.08 AU

Year: 4801 Days

Day: 14.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,613,700 km

• M1: 157,975 km (0.06 R)
• M2: 570,267 km (0.068 R)
• M3: 1,370,167 km (0.106 R)
• M4: 2,153,162 km (0.095 R)
• M5: 3,036,687 km (0.062 R)
• M6: 3,562,524 km (0.077 R)
• M7: 4,932,092 km (0.101 R)
• M8: 8,132,888 km (0.086 R)
• M9: 8,715,422 km (0.114 R)
• M10: 9,325,632 km (0.113 R)
• M11: 10,593,773 km (0.082 R)
• M12: 11,171,371 km (0.098 R)
• M13: 12,643,414 km (0.115 R)
• M14: 14,103,040 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.7

Radius: 9.1

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.82 AU - 4.18 AU

Year: 5623 Days

Day: 8.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,613,700 km

• M1: 114,143 km (0.079 R)
• M2: 480,060 km (0.106 R)
• M3: 925,861 km (0.114 R)
• M4: 1,427,912 km (0.093 R)
• M5: 2,498,135 km (0.089 R)
• M6: 3,418,760 km (0.094 R)
• M7: 3,757,749 km (0.101 R)
• M8: 4,319,788 km (0.041 R)
• M9: 4,813,760 km (0.057 R)
• M10: 5,371,162 km (0.059 R)
• M11: 6,494,492 km (0.096 R)
• M12: 7,048,154 km (0.047 R)
• M13: 7,467,327 km (0.082 R)
• M14: 9,274,918 km (0.065 R)
• M15: 9,700,076 km (0.099 R)
• M16: 10,057,614 km (0.093 R)
• M17: 12,069,556 km (0.113 R)
• M18: 12,954,278 km (0.108 R)
• M19: 13,485,949 km (0.107 R)
• M20: 20,918,121 km (0.118 R)
• M21: 23,518,730 km (0.118 R)
• M22: 24,164,843 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.1

Radius: 14.3

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 3.99 AU - 4.05 AU

Year: 5666 Days

Day: 7.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 36,613,700 km

• M1: 211,083 km (0.117 R)
• M2: 863,629 km (0.103 R)
• M3: 1,487,302 km (0.036 R)
• M4: 3,366,999 km (0.101 R)
• M5: 3,936,668 km (0.065 R)
• M6: 4,543,736 km (0.089 R)
• M7: 5,011,080 km (0.078 R)
• M8: 5,663,925 km (0.073 R)
• M9: 6,373,019 km (0.069 R)
• M10: 7,140,905 km (0.03 R)
• M11: 9,419,280 km (0.116 R)
• M12: 9,954,841 km (0.112 R)
• M13: 10,796,478 km (0.037 R)
• M14: 12,890,849 km (0.096 R)
• M15: 14,120,244 km (0.045 R)
• M16: 14,704,424 km (0.052 R)
• M17: 16,490,024 km (0.082 R)
• M18: 19,326,998 km (0.077 R)
• M19: 19,829,647 km (0.052 R)
• M20: 20,786,325 km (0.102 R)
• M21: 21,314,106 km (0.114 R)
• M22: 25,605,172 km (0.033 R)
• M23: 27,454,201 km (0.106 R)
• M24: 28,181,546 km (0.081 R)
• M25: 29,015,105 km (0.078 R)
• M26: 33,022,234 km (0.112 R)
• M27: 35,638,701 km (0.083 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 10,876 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit