🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.6

Radius: 8

Gravity: 12.95 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.58 AU - 0.78 AU

Year: 362 Days

Day: 7.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,773,054 km

• M1: 101,278 km (0.05 R)
• M2: 353,500 km (0.089 R)
• M3: 603,179 km (0.12 R)
• M4: 940,223 km (0.03 R)
• M5: 2,518,929 km (0.098 R)
• M6: 3,104,455 km (0.088 R)
• M7: 3,542,926 km (0.099 R)
• M8: 4,101,674 km (0.114 R)
• M9: 4,971,885 km (0.113 R)
• M10: 5,314,165 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.2

Radius: 14.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.66 AU - 0.72 AU

Year: 370 Days

Day: 7.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 144.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,773,054 km

• M1: 191,036 km (0.118 R)
• M2: 700,118 km (0.05 R)
• M3: 1,170,903 km (0.118 R)
• M4: 1,728,005 km (0.115 R)
• M5: 2,319,066 km (0.104 R)
• M6: 2,847,296 km (0.117 R)
• M7: 3,390,486 km (0.117 R)
• M8: 3,917,968 km (0.101 R)
• M9: 4,594,001 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.1

Radius: 14

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.83 AU - 0.87 AU

Year: 506 Days

Day: 9.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,773,054 km

• M1: 182,210 km (0.113 R)
• M2: 702,063 km (0.113 R)
• M3: 1,338,901 km (0.099 R)
• M4: 2,109,480 km (0.059 R)
• M5: 2,592,830 km (0.106 R)
• M6: 3,876,978 km (0.113 R)
• M7: 4,510,825 km (0.115 R)
• M8: 5,615,904 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.7

Radius: 10

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.81 AU - 1.17 AU

Year: 636 Days

Day: 11.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,773,054 km

• M1: 124,316 km (0.083 R)
• M2: 614,099 km (0.114 R)
• M3: 935,884 km (0.114 R)
• M4: 1,381,686 km (0.083 R)
• M5: 1,802,056 km (0.119 R)
• M6: 2,150,918 km (0.082 R)
• M7: 2,800,023 km (0.093 R)
• M8: 3,467,080 km (0.12 R)
• M9: 4,161,065 km (0.083 R)
• M10: 4,662,517 km (0.092 R)
• M11: 5,030,378 km (0.109 R)
• M12: 5,655,548 km (0.106 R)
• M13: 7,479,744 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.4

Radius: 14.3

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.04 AU - 4.64 AU

Year: 5838 Days

Day: 13.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,773,054 km

• M1: 178,470 km (0.057 R)
• M2: 688,300 km (0.082 R)
• M3: 3,516,448 km (0.068 R)
• M4: 4,218,211 km (0.092 R)
• M5: 7,326,855 km (0.107 R)
• M6: 7,772,956 km (0.12 R)
• M7: 8,339,034 km (0.066 R)
• M8: 8,932,489 km (0.045 R)
• M9: 12,739,455 km (0.084 R)
• M10: 13,575,558 km (0.112 R)
• M11: 14,250,992 km (0.069 R)
• M12: 14,948,717 km (0.111 R)
• M13: 16,091,046 km (0.077 R)
• M14: 17,235,021 km (0.036 R)
• M15: 19,929,877 km (0.108 R)
• M16: 20,676,670 km (0.118 R)
• M17: 21,184,854 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 798.7

Radius: 6.8

Gravity: 17.27 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6.11 AU - 8.81 AU

Year: 13156 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,773,054 km

• M1: 84,822 km (0.109 R)
• M2: 327,769 km (0.077 R)
• M3: 540,048 km (0.117 R)
• M4: 899,981 km (0.052 R)
• M5: 1,851,872 km (0.047 R)
• M6: 2,258,329 km (0.09 R)
• M7: 3,198,402 km (0.081 R)
• M8: 4,827,074 km (0.09 R)
• M9: 7,332,540 km (0.097 R)
• M10: 9,141,028 km (0.083 R)
• M11: 10,038,915 km (0.075 R)
• M12: 16,467,285 km (0.08 R)
• M13: 17,553,964 km (0.095 R)
• M14: 18,605,038 km (0.079 R)
• M15: 18,853,520 km (0.062 R)
• M16: 21,551,668 km (0.102 R)
• M17: 26,742,564 km (0.115 R)
• M18: 29,345,118 km (0.111 R)
• M19: 31,287,647 km (0.073 R)
• M20: 33,314,099 km (0.083 R)
• M21: 42,727,097 km (0.097 R)
• M22: 43,887,378 km (0.113 R)
• M23: 45,817,489 km (0.082 R)
• M24: 47,032,823 km (0.067 R)
• M25: 58,421,559 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.3

Radius: 7.3

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 7.82 AU - 8.68 AU

Year: 15300 Days

Day: 18.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,773,054 km

• M1: 274,362 km (0.115 R)
• M2: 507,586 km (0.045 R)
• M3: 847,771 km (0.109 R)
• M4: 1,170,005 km (0.105 R)
• M5: 1,731,296 km (0.06 R)
• M6: 1,981,723 km (0.09 R)
• M7: 5,865,882 km (0.09 R)
• M8: 9,090,315 km (0.08 R)
• M9: 12,978,214 km (0.112 R)
• M10: 13,335,005 km (0.068 R)
• M11: 22,598,703 km (0.119 R)
• M12: 23,202,331 km (0.037 R)
• M13: 27,051,933 km (0.065 R)
• M14: 30,568,829 km (0.118 R)
• M15: 35,177,191 km (0.118 R)
• M16: 35,523,062 km (0.119 R)
• M17: 37,526,027 km (0.093 R)
• M18: 44,790,051 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.5

Radius: 7.2

Gravity: 15.46 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.22 AU - 9.7 AU

Year: 15888 Days

Day: 19.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,773,054 km

• M1: 89,609 km (0.088 R)
• M2: 476,918 km (0.084 R)
• M3: 820,844 km (0.111 R)
• M4: 1,411,606 km (0.031 R)
• M5: 1,834,967 km (0.094 R)
• M6: 4,195,173 km (0.045 R)
• M7: 5,626,974 km (0.094 R)
• M8: 8,830,463 km (0.063 R)
• M9: 9,362,134 km (0.104 R)
• M10: 11,392,626 km (0.088 R)
• M11: 11,767,967 km (0.073 R)
• M12: 12,943,657 km (0.066 R)
• M13: 14,484,515 km (0.074 R)
• M14: 16,144,004 km (0.062 R)
• M15: 16,379,620 km (0.107 R)
• M16: 17,345,574 km (0.081 R)
• M17: 20,932,482 km (0.117 R)
• M18: 30,959,728 km (0.071 R)
• M19: 35,123,785 km (0.098 R)
• M20: 38,098,090 km (0.092 R)
• M21: 39,504,011 km (0.077 R)
• M22: 42,868,167 km (0.103 R)
• M23: 46,418,424 km (0.092 R)
• M24: 47,055,113 km (0.103 R)
• M25: 47,697,785 km (0.045 R)
• M26: 50,830,365 km (0.03 R)
• M27: 55,871,962 km (0.12 R)
• M28: 62,581,427 km (0.078 R)
• M29: 65,329,390 km (0.114 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 17,027 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit