🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.7

Radius: 8.5

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.7 AU - 0.98 AU

Year: 513 Days

Day: 5.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,723,152 km

• M1: 105,766 km (0.114 R)
• M2: 378,483 km (0.107 R)
• M3: 822,788 km (0.11 R)
• M4: 1,324,390 km (0.116 R)
• M5: 1,778,270 km (0.092 R)
• M6: 2,099,905 km (0.088 R)
• M7: 2,414,210 km (0.097 R)
• M8: 2,861,807 km (0.08 R)
• M9: 3,445,089 km (0.119 R)
• M10: 3,759,095 km (0.051 R)
• M11: 4,185,150 km (0.068 R)
• M12: 4,862,230 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.9

Radius: 13.8

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.02 AU - 1.02 AU

Year: 687 Days

Day: 14.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,723,152 km

• M1: 171,589 km (0.095 R)
• M2: 612,603 km (0.052 R)
• M3: 1,110,615 km (0.111 R)
• M4: 2,030,641 km (0.095 R)
• M5: 2,570,391 km (0.119 R)
• M6: 3,231,015 km (0.088 R)
• M7: 3,799,038 km (0.116 R)
• M8: 4,513,517 km (0.116 R)
• M9: 5,208,549 km (0.101 R)
• M10: 5,799,909 km (0.101 R)
• M11: 6,539,222 km (0.037 R)
• M12: 7,823,969 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.7

Radius: 12.4

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.68 AU - 1.7 AU

Year: 1465 Days

Day: 5.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,723,152 km

• M1: 154,235 km (0.108 R)
• M2: 547,229 km (0.11 R)
• M3: 1,789,340 km (0.094 R)
• M4: 2,418,848 km (0.107 R)
• M5: 4,106,462 km (0.091 R)
• M6: 5,063,589 km (0.073 R)
• M7: 5,507,595 km (0.11 R)
• M8: 8,161,611 km (0.055 R)
• M9: 9,896,049 km (0.114 R)
• M10: 10,661,242 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.6

Radius: 13.7

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.78 AU - 4.04 AU

Year: 5156 Days

Day: 5.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,723,152 km

• M1: 170,392 km (0.117 R)
• M2: 807,978 km (0.12 R)
• M3: 2,100,055 km (0.088 R)
• M4: 2,612,278 km (0.103 R)
• M5: 3,089,495 km (0.086 R)
• M6: 3,825,068 km (0.095 R)
• M7: 4,495,266 km (0.031 R)
• M8: 5,887,125 km (0.042 R)
• M9: 6,884,344 km (0.029 R)
• M10: 8,647,056 km (0.093 R)
• M11: 10,422,035 km (0.106 R)
• M12: 11,636,022 km (0.092 R)
• M13: 12,683,805 km (0.116 R)
• M14: 14,795,379 km (0.079 R)
• M15: 21,338,341 km (0.074 R)
• M16: 22,300,405 km (0.069 R)
• M17: 23,136,807 km (0.115 R)
• M18: 23,758,236 km (0.102 R)
• M19: 27,377,009 km (0.09 R)
• M20: 30,137,239 km (0.12 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844.7

Radius: 5.9

Gravity: 24.27 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 7.61 AU - 7.71 AU

Year: 14138 Days

Day: 23.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 24,723,152 km

• M1: 76,445 km (0.053 R)
• M2: 328,517 km (0.111 R)
• M3: 638,783 km (0.108 R)
• M4: 870,510 km (0.078 R)
• M5: 1,634,506 km (0.042 R)
• M6: 2,133,565 km (0.093 R)
• M7: 3,090,842 km (0.101 R)
• M8: 4,181,560 km (0.111 R)
• M9: 4,864,923 km (0.104 R)
• M10: 7,181,147 km (0.069 R)
• M11: 7,917,467 km (0.08 R)
• M12: 8,353,096 km (0.096 R)
• M13: 8,652,442 km (0.073 R)
• M14: 9,647,417 km (0.112 R)
• M15: 10,485,165 km (0.084 R)
• M16: 12,432,630 km (0.109 R)
• M17: 13,288,480 km (0.084 R)
• M18: 14,970,708 km (0.1 R)
• M19: 15,338,270 km (0.106 R)
• M20: 15,561,619 km (0.093 R)
• M21: 16,476,859 km (0.085 R)
• M22: 17,027,230 km (0.101 R)
• M23: 18,330,676 km (0.104 R)
• M24: 18,921,438 km (0.106 R)
• M25: 39,651,065 km (0.1 R)
• M26: 42,222,054 km (0.11 R)
• M27: 42,514,368 km (0.114 R)
• M28: 43,548,389 km (0.114 R)
• M29: 45,820,033 km (0.081 R)
• M30: 50,928,202 km (0.108 R)
• M31: 51,759,068 km (0.114 R)
• M32: 56,226,210 km (0.091 R)
• M33: 58,010,614 km (0.117 R)
• M34: 60,943,629 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.8

Radius: 4.3

Gravity: 15.94 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.1 AU - 8.5 AU

Year: 15946 Days

Day: 21.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 24,723,152 km

• M1: 53,406 km (0.117 R)
• M2: 197,768 km (0.107 R)
• M3: 517,010 km (0.11 R)
• M4: 992,582 km (0.073 R)
• M5: 1,523,355 km (0.083 R)
• M6: 1,810,583 km (0.09 R)
• M7: 2,260,873 km (0.111 R)
• M8: 2,532,542 km (0.105 R)
• M9: 2,676,306 km (0.116 R)
• M10: 3,211,268 km (0.052 R)
• M11: 3,454,065 km (0.108 R)
• M12: 4,609,858 km (0.108 R)
• M13: 4,856,096 km (0.118 R)
• M14: 6,001,717 km (0.099 R)
• M15: 6,295,378 km (0.104 R)
• M16: 6,832,284 km (0.067 R)
• M17: 7,275,094 km (0.038 R)
• M18: 7,996,754 km (0.093 R)
• M19: 9,881,089 km (0.108 R)
• M20: 10,084,392 km (0.068 R)
• M21: 11,642,903 km (0.099 R)
• M22: 14,303,352 km (0.113 R)
• M23: 14,827,094 km (0.099 R)
• M24: 17,342,582 km (0.078 R)
• M25: 17,713,136 km (0.069 R)
• M26: 19,169,172 km (0.085 R)
• M27: 21,204,002 km (0.086 R)
• M28: 26,763,807 km (0.091 R)
• M29: 28,572,894 km (0.091 R)
• M30: 29,089,605 km (0.082 R)
• M31: 31,656,405 km (0.058 R)
• M32: 34,022,894 km (0.09 R)
• M33: 35,426,721 km (0.089 R)
• M34: 36,383,848 km (0.042 R)
• M35: 37,235,359 km (0.034 R)
• M36: 37,480,999 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17.4

Radius: 5.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 8.56 AU - 12.78 AU

Year: 23242 Days

Day: 18.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,723,152 km

• M1: 65,673 km (0.115 R)
• M2: 391,647 km (0.111 R)
• M3: 769,980 km (0.073 R)
• M4: 3,277,241 km (0.119 R)
• M5: 4,099,430 km (0.066 R)
• M6: 4,417,326 km (0.096 R)
• M7: 5,524,201 km (0.048 R)
• M8: 9,617,049 km (0.111 R)
• M9: 13,314,809 km (0.111 R)
• M10: 15,584,807 km (0.118 R)
• M11: 16,526,974 km (0.084 R)
• M12: 19,078,366 km (0.073 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 19,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit