🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283

Radius: 14

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.9 AU - 0.94 AU

Year: 579 Days

Day: 14.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,672,144 km

• M1: 174,132 km (0.094 R)
• M2: 648,208 km (0.09 R)
• M3: 1,290,431 km (0.114 R)
• M4: 2,047,396 km (0.082 R)
• M5: 2,515,189 km (0.057 R)
• M6: 2,971,911 km (0.093 R)
• M7: 3,660,211 km (0.077 R)
• M8: 4,107,359 km (0.118 R)
• M9: 4,661,320 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.3

Radius: 9.2

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.75 AU - 1.91 AU

Year: 1624 Days

Day: 13.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,672,144 km

• M1: 115,041 km (0.086 R)
• M2: 505,940 km (0.09 R)
• M3: 1,381,836 km (0.057 R)
• M4: 1,711,100 km (0.084 R)
• M5: 2,042,161 km (0.11 R)
• M6: 2,370,977 km (0.114 R)
• M7: 3,177,758 km (0.073 R)
• M8: 4,173,631 km (0.084 R)
• M9: 5,684,869 km (0.062 R)
• M10: 6,081,602 km (0.064 R)
• M11: 6,699,890 km (0.098 R)
• M12: 8,113,740 km (0.114 R)
• M13: 9,254,872 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.4

Radius: 13.8

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.71 AU - 2.87 AU

Year: 3057 Days

Day: 12.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,672,144 km

• M1: 172,486 km (0.085 R)
• M2: 638,933 km (0.115 R)
• M3: 1,543,700 km (0.111 R)
• M4: 2,348,088 km (0.08 R)
• M5: 3,018,885 km (0.119 R)
• M6: 3,576,735 km (0.087 R)
• M7: 4,304,230 km (0.06 R)
• M8: 8,084,867 km (0.093 R)
• M9: 8,598,586 km (0.091 R)
• M10: 14,582,950 km (0.056 R)
• M11: 15,249,409 km (0.116 R)
• M12: 18,229,697 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.6

Radius: 9.5

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.35 AU - 4.83 AU

Year: 5426 Days

Day: 14.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,672,144 km

• M1: 119,678 km (0.116 R)
• M2: 480,359 km (0.114 R)
• M3: 882,029 km (0.059 R)
• M4: 1,675,047 km (0.025 R)
• M5: 2,345,395 km (0.045 R)
• M6: 4,711,735 km (0.038 R)
• M7: 5,129,861 km (0.119 R)
• M8: 6,284,307 km (0.073 R)
• M9: 6,619,556 km (0.107 R)
• M10: 7,174,863 km (0.058 R)
• M11: 8,180,012 km (0.065 R)
• M12: 8,580,335 km (0.108 R)
• M13: 9,711,894 km (0.075 R)
• M14: 11,303,466 km (0.113 R)
• M15: 12,011,961 km (0.077 R)
• M16: 12,617,384 km (0.113 R)
• M17: 15,851,241 km (0.106 R)
• M18: 16,526,825 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.3

Radius: 12.8

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.08 AU - 5.26 AU

Year: 6620 Days

Day: 10.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,672,144 km

• M1: 159,471 km (0.094 R)
• M2: 683,363 km (0.07 R)
• M3: 1,311,824 km (0.099 R)
• M4: 1,963,322 km (0.054 R)
• M5: 2,823,361 km (0.086 R)
• M6: 4,327,567 km (0.082 R)
• M7: 4,816,004 km (0.055 R)
• M8: 7,614,681 km (0.11 R)
• M9: 8,407,400 km (0.113 R)
• M10: 10,884,442 km (0.097 R)
• M11: 11,548,656 km (0.097 R)
• M12: 12,801,987 km (0.064 R)
• M13: 14,033,327 km (0.041 R)
• M14: 14,763,365 km (0.066 R)
• M15: 16,730,727 km (0.105 R)
• M16: 19,411,371 km (0.1 R)
• M17: 20,317,934 km (0.073 R)
• M18: 23,207,866 km (0.108 R)
• M19: 23,675,509 km (0.076 R)
• M20: 26,956,340 km (0.103 R)
• M21: 27,734,248 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759

Radius: 7.2

Gravity: 14.64 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 7.79 AU - 8.49 AU

Year: 15235 Days

Day: 18.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,672,144 km

• M1: 89,609 km (0.07 R)
• M2: 411,693 km (0.095 R)
• M3: 826,678 km (0.026 R)
• M4: 1,242,261 km (0.078 R)
• M5: 1,688,960 km (0.095 R)
• M6: 1,987,109 km (0.117 R)
• M7: 2,555,132 km (0.084 R)
• M8: 6,267,253 km (0.034 R)
• M9: 7,342,413 km (0.059 R)
• M10: 8,238,205 km (0.076 R)
• M11: 8,789,174 km (0.109 R)
• M12: 10,764,464 km (0.099 R)
• M13: 11,301,072 km (0.106 R)
• M14: 14,397,449 km (0.117 R)
• M15: 18,434,646 km (0.103 R)
• M16: 18,858,756 km (0.061 R)
• M17: 22,010,933 km (0.088 R)
• M18: 26,557,661 km (0.113 R)
• M19: 26,989,700 km (0.111 R)
• M20: 42,978,720 km (0.097 R)
• M21: 45,394,427 km (0.079 R)
• M22: 46,792,419 km (0.092 R)
• M23: 49,673,823 km (0.096 R)
• M24: 53,524,921 km (0.058 R)
• M25: 55,259,808 km (0.076 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 16,414 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit