🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.1

Radius: 12.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.59 AU - 0.87 AU

Year: 431 Days

Day: 8.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,613,994 km

• M1: 156,779 km (0.025 R)
• M2: 563,535 km (0.111 R)
• M3: 1,038,508 km (0.117 R)
• M4: 1,809,386 km (0.116 R)
• M5: 2,305,602 km (0.065 R)
• M6: 2,739,287 km (0.038 R)
• M7: 3,182,844 km (0.117 R)
• M8: 4,216,865 km (0.117 R)
• M9: 4,827,074 km (0.071 R)
• M10: 5,447,008 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 8.9

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.82 AU - 0.96 AU

Year: 580 Days

Day: 5.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,613,994 km

• M1: 111,301 km (0.06 R)
• M2: 483,500 km (0.085 R)
• M3: 914,342 km (0.109 R)
• M4: 1,305,541 km (0.081 R)
• M5: 1,660,836 km (0.07 R)
• M6: 2,235,291 km (0.119 R)
• M7: 3,520,786 km (0.091 R)
• M8: 4,058,889 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987

Radius: 9.5

Gravity: 10.94 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.79 AU - 0.99 AU

Year: 580 Days

Day: 10.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,613,994 km

• M1: 118,182 km (0.103 R)
• M2: 466,596 km (0.098 R)
• M3: 870,809 km (0.074 R)
• M4: 1,307,635 km (0.055 R)
• M5: 2,192,955 km (0.073 R)
• M6: 2,553,636 km (0.026 R)
• M7: 2,977,746 km (0.114 R)
• M8: 3,303,570 km (0.077 R)
• M9: 5,024,843 km (0.027 R)
• M10: 5,656,295 km (0.101 R)
• M11: 6,099,404 km (0.098 R)
• M12: 6,503,319 km (0.106 R)
• M13: 6,989,961 km (0.098 R)
• M14: 7,638,018 km (0.057 R)
• M15: 8,036,098 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.8

Radius: 11.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.92 AU - 1.1 AU

Year: 701 Days

Day: 11 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,613,994 km

• M1: 153,338 km (0.076 R)
• M2: 553,063 km (0.095 R)
• M3: 1,083,537 km (0.111 R)
• M4: 1,628,522 km (0.109 R)
• M5: 2,146,580 km (0.097 R)
• M6: 2,711,312 km (0.051 R)
• M7: 4,775,164 km (0.026 R)
• M8: 5,794,973 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.8

Radius: 14.5

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.33 AU - 2.69 AU

Year: 2745 Days

Day: 10.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 110.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,613,994 km

• M1: 180,415 km (0.073 R)
• M2: 704,157 km (0.093 R)
• M3: 1,181,075 km (0.115 R)
• M4: 1,954,347 km (0.032 R)
• M5: 3,715,263 km (0.111 R)
• M6: 4,413,586 km (0.096 R)
• M7: 5,011,229 km (0.067 R)
• M8: 6,370,027 km (0.106 R)
• M9: 7,742,139 km (0.1 R)
• M10: 8,989,037 km (0.108 R)
• M11: 9,552,722 km (0.053 R)
• M12: 15,742,184 km (0.1 R)
• M13: 16,983,846 km (0.074 R)
• M14: 18,012,332 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.1

Radius: 13.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3 AU - 4.42 AU

Year: 4933 Days

Day: 10.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,613,994 km

• M1: 167,849 km (0.113 R)
• M2: 630,405 km (0.103 R)
• M3: 1,104,331 km (0.064 R)
• M4: 1,624,633 km (0.112 R)
• M5: 3,462,892 km (0.09 R)
• M6: 5,277,514 km (0.113 R)
• M7: 7,829,205 km (0.09 R)
• M8: 8,569,116 km (0.07 R)
• M9: 11,867,449 km (0.03 R)
• M10: 13,824,190 km (0.051 R)
• M11: 19,296,031 km (0.119 R)
• M12: 20,910,790 km (0.086 R)
• M13: 21,581,288 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.7

Radius: 7.5

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 7.3 AU - 8.04 AU

Year: 14662 Days

Day: 23.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,613,994 km

• M1: 93,349 km (0.102 R)
• M2: 388,057 km (0.115 R)
• M3: 659,727 km (0.107 R)
• M4: 1,104,331 km (0.099 R)
• M5: 1,662,182 km (0.035 R)
• M6: 2,123,691 km (0.038 R)
• M7: 2,854,926 km (0.117 R)
• M8: 9,036,609 km (0.114 R)
• M9: 11,623,904 km (0.119 R)
• M10: 12,126,703 km (0.091 R)
• M11: 13,235,971 km (0.065 R)
• M12: 14,538,968 km (0.114 R)
• M13: 15,057,175 km (0.092 R)
• M14: 15,387,188 km (0.063 R)
• M15: 15,789,606 km (0.1 R)
• M16: 23,485,519 km (0.062 R)
• M17: 26,809,434 km (0.118 R)
• M18: 37,299,536 km (0.058 R)
• M19: 41,540,636 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.3

Radius: 5

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 6.61 AU - 8.91 AU

Year: 14921 Days

Day: 18.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,613,994 km

• M1: 62,233 km (0.067 R)
• M2: 472,879 km (0.102 R)
• M3: 642,373 km (0.11 R)
• M4: 2,345,844 km (0.104 R)
• M5: 2,765,017 km (0.106 R)
• M6: 2,974,604 km (0.049 R)
• M7: 5,341,093 km (0.108 R)
• M8: 6,121,994 km (0.096 R)
• M9: 7,136,866 km (0.075 R)
• M10: 8,438,965 km (0.093 R)
• M11: 10,135,405 km (0.118 R)
• M12: 11,106,744 km (0.102 R)
• M13: 17,374,446 km (0.051 R)
• M14: 18,392,609 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 396.5

Radius: 5.8

Gravity: 11.79 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 7.95 AU - 11.87 AU

Year: 21534 Days

Day: 16.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,613,994 km

• M1: 72,106 km (0.073 R)
• M2: 258,655 km (0.069 R)
• M3: 715,227 km (0.084 R)
• M4: 1,136,944 km (0.104 R)
• M5: 1,367,325 km (0.06 R)
• M6: 2,664,488 km (0.074 R)
• M7: 3,281,280 km (0.078 R)
• M8: 3,470,072 km (0.093 R)
• M9: 5,436,835 km (0.117 R)
• M10: 7,569,951 km (0.027 R)
• M11: 8,389,897 km (0.073 R)
• M12: 8,641,970 km (0.119 R)
• M13: 9,756,025 km (0.116 R)
• M14: 10,608,434 km (0.111 R)
• M15: 10,903,291 km (0.108 R)
• M16: 11,264,271 km (0.11 R)
• M17: 12,788,524 km (0.056 R)
• M18: 13,462,312 km (0.118 R)
• M19: 15,324,955 km (0.105 R)
• M20: 24,599,575 km (0.072 R)
• M21: 29,397,926 km (0.103 R)
• M22: 31,046,345 km (0.101 R)
• M23: 31,528,350 km (0.062 R)
• M24: 33,255,008 km (0.118 R)
• M25: 34,655,095 km (0.115 R)
• M26: 35,435,248 km (0.109 R)
• M27: 43,739,276 km (0.03 R)
• M28: 58,393,883 km (0.102 R)
• M29: 64,052,423 km (0.106 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 20,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit