🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.1

Radius: 14.1

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.55 AU - 0.55 AU

Year: 277 Days

Day: 7.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,196,270 km

• M1: 175,927 km (0.083 R)
• M2: 738,415 km (0.111 R)
• M3: 1,326,036 km (0.107 R)
• M4: 1,862,643 km (0.061 R)
• M5: 2,643,095 km (0.073 R)
• M6: 3,105,203 km (0.086 R)
• M7: 3,610,545 km (0.108 R)
• M8: 4,183,205 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.5

Radius: 8.8

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.68 AU - 1.12 AU

Year: 579 Days

Day: 5.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,196,270 km

• M1: 109,506 km (0.091 R)
• M2: 422,614 km (0.095 R)
• M3: 805,136 km (0.08 R)
• M4: 1,086,978 km (0.112 R)
• M5: 1,415,345 km (0.072 R)
• M6: 1,752,988 km (0.075 R)
• M7: 2,326,396 km (0.07 R)
• M8: 2,767,261 km (0.106 R)
• M9: 3,914,827 km (0.071 R)
• M10: 4,249,627 km (0.09 R)
• M11: 4,571,861 km (0.063 R)
• M12: 5,784,501 km (0.099 R)
• M13: 6,219,980 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.6

Radius: 12.6

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.91 AU - 0.95 AU

Year: 608 Days

Day: 7.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,196,270 km

• M1: 157,377 km (0.106 R)
• M2: 563,535 km (0.117 R)
• M3: 981,512 km (0.116 R)
• M4: 1,672,355 km (0.097 R)
• M5: 2,086,741 km (0.049 R)
• M6: 2,625,293 km (0.046 R)
• M7: 3,067,355 km (0.083 R)
• M8: 3,796,495 km (0.1 R)
• M9: 4,540,595 km (0.081 R)
• M10: 5,253,877 km (0.118 R)
• M11: 6,380,798 km (0.061 R)
• M12: 7,099,915 km (0.112 R)
• M13: 7,802,127 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604

Radius: 8.9

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.33 AU - 1.53 AU

Year: 1160 Days

Day: 8.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,196,270 km

• M1: 110,702 km (0.103 R)
• M2: 397,033 km (0.118 R)
• M3: 713,881 km (0.1 R)
• M4: 1,730,847 km (0.084 R)
• M5: 2,378,606 km (0.104 R)
• M6: 2,777,883 km (0.083 R)
• M7: 4,183,205 km (0.086 R)
• M8: 4,621,078 km (0.087 R)
• M9: 6,433,008 km (0.046 R)
• M10: 8,157,871 km (0.089 R)
• M11: 8,814,456 km (0.083 R)
• M12: 10,546,650 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.5

Radius: 8.7

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.52 AU - 1.84 AU

Year: 1477 Days

Day: 8.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,196,270 km

• M1: 108,309 km (0.114 R)
• M2: 393,592 km (0.081 R)
• M3: 673,639 km (0.104 R)
• M4: 948,750 km (0.094 R)
• M5: 1,347,278 km (0.095 R)
• M6: 1,648,868 km (0.051 R)
• M7: 1,995,785 km (0.069 R)
• M8: 2,356,466 km (0.096 R)
• M9: 2,864,949 km (0.038 R)
• M10: 3,252,856 km (0.083 R)
• M11: 3,691,477 km (0.096 R)
• M12: 3,983,193 km (0.081 R)
• M13: 4,952,438 km (0.101 R)
• M14: 7,400,607 km (0.077 R)
• M15: 7,945,891 km (0.115 R)
• M16: 11,284,616 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.9

Radius: 5.7

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.56 AU - 8.54 AU

Year: 12696 Days

Day: 17.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,196,270 km

• M1: 71,059 km (0.095 R)
• M2: 251,773 km (0.103 R)
• M3: 637,736 km (0.077 R)
• M4: 923,916 km (0.059 R)
• M5: 1,303,147 km (0.104 R)
• M6: 2,985,824 km (0.104 R)
• M7: 3,188,679 km (0.07 R)
• M8: 3,460,199 km (0.095 R)
• M9: 5,291,725 km (0.071 R)
• M10: 8,872,351 km (0.035 R)
• M11: 9,062,041 km (0.116 R)
• M12: 9,567,831 km (0.099 R)
• M13: 9,888,419 km (0.07 R)
• M14: 12,957,420 km (0.106 R)
• M15: 13,902,429 km (0.119 R)
• M16: 16,265,776 km (0.088 R)
• M17: 23,462,332 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.8

Radius: 4.4

Gravity: 39.71 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 5.89 AU - 9.81 AU

Year: 14917 Days

Day: 24.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 62,196,270 km

• M1: 55,052 km (0.117 R)
• M2: 362,775 km (0.097 R)
• M3: 709,543 km (0.1 R)
• M4: 975,677 km (0.07 R)
• M5: 1,144,873 km (0.084 R)
• M6: 1,809,087 km (0.119 R)
• M7: 2,411,218 km (0.09 R)
• M8: 2,699,793 km (0.062 R)
• M9: 4,903,369 km (0.12 R)
• M10: 5,042,795 km (0.091 R)
• M11: 5,293,371 km (0.106 R)
• M12: 6,545,954 km (0.096 R)
• M13: 7,888,146 km (0.105 R)
• M14: 10,060,906 km (0.118 R)
• M15: 10,983,924 km (0.07 R)
• M16: 11,650,383 km (0.114 R)
• M17: 12,343,470 km (0.06 R)
• M18: 12,930,642 km (0.116 R)
• M19: 16,225,235 km (0.105 R)
• M20: 19,163,637 km (0.048 R)
• M21: 19,336,572 km (0.073 R)
• M22: 19,773,547 km (0.103 R)
• M23: 20,396,174 km (0.092 R)
• M24: 26,707,259 km (0.093 R)
• M25: 28,691,675 km (0.102 R)
• M26: 32,335,879 km (0.066 R)
• M27: 33,323,973 km (0.118 R)
• M28: 33,825,425 km (0.087 R)
• M29: 34,204,955 km (0.067 R)
• M30: 38,705,756 km (0.069 R)
• M31: 39,120,741 km (0.087 R)
• M32: 40,383,945 km (0.03 R)
• M33: 44,487,116 km (0.061 R)
• M34: 46,172,336 km (0.047 R)
• M35: 48,538,226 km (0.1 R)
• M36: 51,315,959 km (0.105 R)
• M37: 55,065,331 km (0.101 R)
• M38: 56,118,649 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.5

Radius: 5.9

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.14 AU - 9.96 AU

Year: 20017 Days

Day: 20.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,196,270 km

• M1: 99,632 km (0.073 R)
• M2: 337,493 km (0.104 R)
• M3: 526,884 km (0.049 R)
• M4: 2,515,039 km (0.105 R)
• M5: 4,169,741 km (0.072 R)
• M6: 7,608,099 km (0.046 R)
• M7: 8,608,310 km (0.093 R)
• M8: 8,808,323 km (0.086 R)
• M9: 10,636,259 km (0.114 R)
• M10: 11,159,403 km (0.111 R)
• M11: 12,320,133 km (0.093 R)
• M12: 17,690,995 km (0.109 R)
• M13: 18,841,403 km (0.109 R)
• M14: 20,748,626 km (0.114 R)
• M15: 23,164,183 km (0.087 R)
• M16: 26,915,499 km (0.112 R)
• M17: 29,215,118 km (0.114 R)
• M18: 44,015,882 km (0.09 R)
• M19: 50,365,414 km (0.112 R)
• M20: 50,852,655 km (0.109 R)
• M21: 52,167,321 km (0.104 R)
• M22: 53,504,426 km (0.091 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 12,550 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit