🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.1

Radius: 13.4

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.82 AU - 0.94 AU

Year: 560 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,074,149 km

• M1: 166,802 km (0.085 R)
• M2: 657,632 km (0.036 R)
• M3: 1,141,881 km (0.069 R)
• M4: 1,607,878 km (0.092 R)
• M5: 2,276,880 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330

Radius: 13.3

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.29 AU - 1.35 AU

Year: 1029 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,074,149 km

• M1: 165,455 km (0.037 R)
• M2: 648,656 km (0.043 R)
• M3: 1,424,172 km (0.038 R)
• M4: 1,911,562 km (0.062 R)
• M5: 2,489,458 km (0.108 R)
• M6: 3,548,461 km (0.094 R)
• M7: 5,025,441 km (0.118 R)
• M8: 6,297,322 km (0.105 R)
• M9: 6,901,099 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.6

Radius: 11

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.34 AU - 1.42 AU

Year: 1100 Days

Day: 13.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,074,149 km

• M1: 136,882 km (0.087 R)
• M2: 529,876 km (0.09 R)
• M3: 1,223,411 km (0.1 R)
• M4: 1,675,347 km (0.094 R)
• M5: 2,195,947 km (0.093 R)
• M6: 2,593,429 km (0.084 R)
• M7: 3,280,981 km (0.115 R)
• M8: 4,925,959 km (0.072 R)
• M9: 7,086,451 km (0.054 R)
• M10: 7,467,627 km (0.088 R)
• M11: 7,937,962 km (0.045 R)
• M12: 9,103,778 km (0.078 R)
• M13: 9,469,096 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488

Radius: 14.4

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.2 AU - 1.92 AU

Year: 1322 Days

Day: 6.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,074,149 km

• M1: 179,218 km (0.089 R)
• M2: 659,727 km (0.109 R)
• M3: 1,222,065 km (0.07 R)
• M4: 2,267,455 km (0.088 R)
• M5: 2,745,869 km (0.098 R)
• M6: 3,421,902 km (0.109 R)
• M7: 4,156,726 km (0.096 R)
• M8: 4,643,368 km (0.103 R)
• M9: 5,607,975 km (0.085 R)
• M10: 6,609,982 km (0.092 R)
• M11: 7,300,974 km (0.119 R)
• M12: 8,413,983 km (0.102 R)
• M13: 9,342,836 km (0.08 R)
• M14: 11,106,894 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.6

Radius: 13.3

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.35 AU - 2.09 AU

Year: 1530 Days

Day: 13.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,074,149 km

• M1: 165,455 km (0.099 R)
• M2: 699,220 km (0.117 R)
• M3: 1,228,199 km (0.113 R)
• M4: 2,230,654 km (0.111 R)
• M5: 2,807,802 km (0.058 R)
• M6: 4,051,559 km (0.098 R)
• M7: 4,539,697 km (0.088 R)
• M8: 5,029,331 km (0.047 R)
• M9: 5,882,338 km (0.086 R)
• M10: 6,829,592 km (0.079 R)
• M11: 8,186,743 km (0.114 R)
• M12: 9,864,633 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.3

Radius: 14.9

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.77 AU - 2.01 AU

Year: 1762 Days

Day: 13 Hours

Environment

Temp: -196 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,074,149 km

• M1: 185,352 km (0.053 R)
• M2: 710,889 km (0.119 R)
• M3: 1,263,653 km (0.035 R)
• M4: 1,944,024 km (0.069 R)
• M5: 2,471,955 km (0.114 R)
• M6: 3,238,943 km (0.106 R)
• M7: 3,824,470 km (0.063 R)
• M8: 5,110,562 km (0.11 R)
• M9: 5,605,432 km (0.081 R)
• M10: 6,620,753 km (0.064 R)
• M11: 7,084,955 km (0.109 R)
• M12: 7,623,358 km (0.056 R)
• M13: 8,216,663 km (0.064 R)
• M14: 8,753,719 km (0.095 R)
• M15: 9,618,993 km (0.096 R)
• M16: 11,244,075 km (0.063 R)

Asteroid Belt

Center: 2.19 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.6

Radius: 12.8

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.4 AU - 2.58 AU

Year: 2665 Days

Day: 6.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,074,149 km

• M1: 159,172 km (0.03 R)
• M2: 725,101 km (0.09 R)
• M3: 1,177,036 km (0.118 R)
• M4: 1,617,452 km (0.076 R)
• M5: 2,156,753 km (0.086 R)
• M6: 2,830,242 km (0.086 R)
• M7: 3,789,464 km (0.089 R)
• M8: 5,115,649 km (0.075 R)
• M9: 6,238,231 km (0.116 R)
• M10: 6,787,255 km (0.113 R)
• M11: 7,190,571 km (0.074 R)
• M12: 8,630,600 km (0.049 R)
• M13: 10,903,740 km (0.049 R)
• M14: 11,825,412 km (0.101 R)
• M15: 12,284,229 km (0.094 R)
• M16: 13,778,113 km (0.108 R)
• M17: 17,124,019 km (0.114 R)
• M18: 17,983,758 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.3

Radius: 4.3

Gravity: 27.11 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.52 AU - 7.62 AU

Year: 11422 Days

Day: 22.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 29,074,149 km

• M1: 65,225 km (0.111 R)
• M2: 319,391 km (0.11 R)
• M3: 521,947 km (0.071 R)
• M4: 826,079 km (0.064 R)
• M5: 991,834 km (0.091 R)
• M6: 1,215,184 km (0.115 R)
• M7: 1,471,594 km (0.059 R)
• M8: 1,671,906 km (0.079 R)
• M9: 1,955,992 km (0.068 R)
• M10: 2,308,594 km (0.057 R)
• M11: 3,003,327 km (0.072 R)
• M12: 5,432,048 km (0.069 R)
• M13: 5,668,263 km (0.088 R)
• M14: 5,806,342 km (0.091 R)
• M15: 7,272,850 km (0.118 R)
• M16: 10,860,057 km (0.096 R)
• M17: 17,358,589 km (0.107 R)
• M18: 20,667,395 km (0.089 R)
• M19: 21,493,025 km (0.12 R)
• M20: 23,121,697 km (0.118 R)
• M21: 27,010,344 km (0.028 R)
• M22: 33,626,460 km (0.118 R)
• M23: 43,616,007 km (0.111 R)
• M24: 43,750,346 km (0.075 R)
• M25: 45,659,813 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.6

Radius: 3.2

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 9.22 AU - 12.32 AU

Year: 23973 Days

Day: 21.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,074,149 km

• M1: 40,541 km (0.108 R)
• M2: 863,629 km (0.085 R)
• M3: 1,842,747 km (0.109 R)
• M4: 3,625,654 km (0.086 R)
• M5: 3,936,668 km (0.049 R)
• M6: 5,138,687 km (0.085 R)
• M7: 6,033,282 km (0.067 R)
• M8: 10,256,879 km (0.118 R)
• M9: 13,871,163 km (0.115 R)
• M10: 15,412,769 km (0.117 R)
• M11: 16,641,267 km (0.043 R)
• M12: 16,882,419 km (0.078 R)
• M13: 21,991,485 km (0.072 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 13,724 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit