🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.7

Radius: 9.1

Gravity: 10.96 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.68 AU - 0.84 AU

Year: 457 Days

Day: 7.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,339,896 km

• M1: 113,395 km (0.116 R)
• M2: 432,487 km (0.067 R)
• M3: 716,424 km (0.108 R)
• M4: 1,326,185 km (0.113 R)
• M5: 1,706,164 km (0.111 R)
• M6: 2,122,046 km (0.036 R)
• M7: 2,502,473 km (0.093 R)
• M8: 3,088,448 km (0.116 R)
• M9: 3,709,878 km (0.069 R)
• M10: 4,192,929 km (0.1 R)
• M11: 5,036,212 km (0.061 R)
• M12: 5,629,069 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.5

Radius: 12.2

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.67 AU - 0.97 AU

Year: 513 Days

Day: 10.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,339,896 km

• M1: 151,692 km (0.091 R)
• M2: 732,282 km (0.092 R)
• M3: 1,247,796 km (0.072 R)
• M4: 1,813,725 km (0.104 R)
• M5: 2,470,459 km (0.067 R)
• M6: 3,315,388 km (0.063 R)
• M7: 3,831,501 km (0.095 R)
• M8: 4,260,398 km (0.08 R)
• M9: 5,167,709 km (0.119 R)
• M10: 5,778,218 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.1

Radius: 9.3

Gravity: 11.18 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.82 AU - 0.96 AU

Year: 580 Days

Day: 12.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,339,896 km

• M1: 115,639 km (0.118 R)
• M2: 486,043 km (0.111 R)
• M3: 918,830 km (0.046 R)
• M4: 1,421,928 km (0.077 R)
• M5: 1,830,180 km (0.075 R)
• M6: 2,176,948 km (0.093 R)
• M7: 2,567,698 km (0.105 R)
• M8: 2,873,326 km (0.039 R)
• M9: 3,464,238 km (0.078 R)
• M10: 3,999,499 km (0.104 R)
• M11: 4,687,051 km (0.114 R)
• M12: 5,042,047 km (0.036 R)
• M13: 5,749,046 km (0.077 R)
• M14: 6,624,493 km (0.066 R)
• M15: 7,793,899 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.7

Radius: 10.7

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.3 AU - 1.76 AU

Year: 1306 Days

Day: 5.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,339,896 km

• M1: 142,716 km (0.061 R)
• M2: 522,396 km (0.079 R)
• M3: 1,147,565 km (0.114 R)
• M4: 1,641,089 km (0.088 R)
• M5: 2,063,553 km (0.086 R)
• M6: 2,400,896 km (0.102 R)
• M7: 3,723,641 km (0.114 R)
• M8: 4,534,760 km (0.084 R)
• M9: 5,192,093 km (0.098 R)
• M10: 5,823,696 km (0.093 R)
• M11: 6,817,773 km (0.055 R)
• M12: 8,221,749 km (0.117 R)
• M13: 10,742,623 km (0.057 R)
• M14: 11,316,181 km (0.115 R)
• M15: 11,910,234 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.9

Radius: 10.2

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.1 AU - 2.28 AU

Year: 2237 Days

Day: 8.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,339,896 km

• M1: 126,859 km (0.058 R)
• M2: 595,998 km (0.073 R)
• M3: 999,463 km (0.076 R)
• M4: 1,686,566 km (0.115 R)
• M5: 2,365,442 km (0.09 R)
• M6: 3,649,290 km (0.044 R)
• M7: 4,536,406 km (0.099 R)
• M8: 6,587,542 km (0.117 R)
• M9: 6,906,485 km (0.065 R)
• M10: 8,202,601 km (0.109 R)
• M11: 8,601,130 km (0.086 R)
• M12: 9,437,082 km (0.063 R)
• M13: 11,479,841 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.3

Radius: 12.4

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.55 AU - 5.03 AU

Year: 6133 Days

Day: 5.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,339,896 km

• M1: 155,881 km (0.079 R)
• M2: 672,592 km (0.084 R)
• M3: 1,124,378 km (0.052 R)
• M4: 1,534,126 km (0.115 R)
• M5: 2,758,435 km (0.051 R)
• M6: 3,193,615 km (0.067 R)
• M7: 3,653,030 km (0.103 R)
• M8: 5,504,454 km (0.075 R)
• M9: 7,229,915 km (0.116 R)
• M10: 8,409,046 km (0.105 R)
• M11: 9,584,586 km (0.089 R)
• M12: 11,429,876 km (0.034 R)
• M13: 12,974,474 km (0.056 R)
• M14: 16,171,081 km (0.079 R)
• M15: 17,470,787 km (0.114 R)
• M16: 18,309,583 km (0.085 R)
• M17: 24,231,863 km (0.109 R)
• M18: 27,023,359 km (0.071 R)
• M19: 27,796,631 km (0.103 R)
• M20: 28,673,274 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.7

Radius: 6.3

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.68 AU - 6.52 AU

Year: 9147 Days

Day: 20.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,339,896 km

• M1: 78,389 km (0.116 R)
• M2: 277,803 km (0.101 R)
• M3: 615,894 km (0.096 R)
• M4: 823,087 km (0.097 R)
• M5: 1,320,800 km (0.067 R)
• M6: 2,234,394 km (0.082 R)
• M7: 2,616,916 km (0.04 R)
• M8: 3,370,440 km (0.076 R)
• M9: 3,940,408 km (0.06 R)
• M10: 4,646,659 km (0.087 R)
• M11: 6,399,647 km (0.105 R)
• M12: 8,001,093 km (0.068 R)
• M13: 13,696,583 km (0.051 R)
• M14: 14,807,347 km (0.052 R)
• M15: 15,301,319 km (0.071 R)
• M16: 19,265,363 km (0.112 R)
• M17: 19,590,888 km (0.1 R)
• M18: 26,575,912 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 547

Radius: 4

Gravity: 34.19 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.35 AU - 7.57 AU

Year: 11333 Days

Day: 15.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,339,896 km

• M1: 171,290 km (0.103 R)
• M2: 1,054,067 km (0.12 R)
• M3: 1,632,113 km (0.044 R)
• M4: 2,436,800 km (0.048 R)
• M5: 2,762,773 km (0.087 R)
• M6: 3,305,365 km (0.119 R)
• M7: 3,451,522 km (0.119 R)
• M8: 4,598,489 km (0.082 R)
• M9: 4,750,181 km (0.108 R)
• M10: 9,867,027 km (0.112 R)
• M11: 13,932,947 km (0.075 R)
• M12: 14,508,749 km (0.08 R)
• M13: 16,755,710 km (0.102 R)
• M14: 17,627,117 km (0.052 R)
• M15: 20,997,856 km (0.099 R)
• M16: 23,498,834 km (0.077 R)
• M17: 29,082,275 km (0.11 R)
• M18: 44,670,373 km (0.064 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 15,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit