🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.2

Radius: 8.1

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.62 AU - 0.78 AU

Year: 391 Days

Day: 14.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,391,224 km

• M1: 100,679 km (0.11 R)
• M2: 357,240 km (0.078 R)
• M3: 789,877 km (0.097 R)
• M4: 1,044,941 km (0.065 R)
• M5: 2,028,697 km (0.109 R)
• M6: 2,300,067 km (0.093 R)
• M7: 3,098,322 km (0.11 R)
• M8: 3,939,660 km (0.053 R)
• M9: 4,632,448 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.9

Radius: 9.4

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.3 AU - 1.78 AU

Year: 1274 Days

Day: 7.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,391,224 km

• M1: 116,986 km (0.111 R)
• M2: 637,736 km (0.088 R)
• M3: 957,277 km (0.079 R)
• M4: 1,362,238 km (0.114 R)
• M5: 1,684,472 km (0.075 R)
• M6: 2,015,083 km (0.089 R)
• M7: 2,549,148 km (0.116 R)
• M8: 3,233,857 km (0.114 R)
• M9: 3,619,820 km (0.038 R)
• M10: 4,019,246 km (0.099 R)
• M11: 4,337,889 km (0.054 R)
• M12: 4,750,331 km (0.074 R)
• M13: 6,239,578 km (0.065 R)
• M14: 6,643,941 km (0.07 R)
• M15: 7,322,068 km (0.06 R)
• M16: 9,326,081 km (0.11 R)
• M17: 10,208,559 km (0.08 R)
• M18: 10,569,987 km (0.091 R)
• M19: 11,111,232 km (0.05 R)
• M20: 11,741,937 km (0.09 R)
• M21: 12,359,477 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.8

Radius: 11

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.08 AU - 2.4 AU

Year: 2236 Days

Day: 10 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,391,224 km

• M1: 140,772 km (0.118 R)
• M2: 658,979 km (0.098 R)
• M3: 1,102,985 km (0.108 R)
• M4: 1,705,865 km (0.04 R)
• M5: 2,401,195 km (0.089 R)
• M6: 2,938,701 km (0.092 R)
• M7: 3,796,944 km (0.112 R)
• M8: 4,161,514 km (0.056 R)
• M9: 6,787,255 km (0.067 R)
• M10: 7,779,089 km (0.079 R)
• M11: 8,310,012 km (0.09 R)
• M12: 12,019,142 km (0.059 R)
• M13: 13,932,648 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.1

Radius: 11.4

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.53 AU - 3.63 AU

Year: 3605 Days

Day: 7.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,391,224 km

• M1: 141,819 km (0.07 R)
• M2: 609,761 km (0.047 R)
• M3: 1,034,170 km (0.106 R)
• M4: 1,508,545 km (0.098 R)
• M5: 1,927,868 km (0.083 R)
• M6: 2,811,243 km (0.118 R)
• M7: 4,789,077 km (0.079 R)
• M8: 5,271,979 km (0.094 R)
• M9: 7,257,890 km (0.087 R)
• M10: 7,775,499 km (0.106 R)
• M11: 8,317,642 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.1

Radius: 9.3

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.54 AU - 3.82 AU

Year: 3782 Days

Day: 14.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,391,224 km

• M1: 116,836 km (0.099 R)
• M2: 648,208 km (0.061 R)
• M3: 1,410,858 km (0.07 R)
• M4: 2,516,685 km (0.101 R)
• M5: 3,332,891 km (0.12 R)
• M6: 5,411,404 km (0.11 R)
• M7: 6,289,693 km (0.105 R)
• M8: 7,091,687 km (0.055 R)
• M9: 7,840,574 km (0.069 R)
• M10: 8,705,100 km (0.106 R)
• M11: 9,094,503 km (0.064 R)
• M12: 9,943,172 km (0.114 R)
• M13: 11,332,936 km (0.113 R)
• M14: 12,641,170 km (0.03 R)
• M15: 13,915,444 km (0.093 R)
• M16: 14,538,669 km (0.116 R)
• M17: 16,129,343 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.5

Radius: 13

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.65 AU - 4.15 AU

Year: 4181 Days

Day: 14.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,391,224 km

• M1: 162,613 km (0.096 R)
• M2: 686,355 km (0.107 R)
• M3: 1,149,809 km (0.116 R)
• M4: 1,791,734 km (0.091 R)
• M5: 2,601,507 km (0.116 R)
• M6: 3,643,007 km (0.114 R)
• M7: 4,270,720 km (0.061 R)
• M8: 4,969,791 km (0.074 R)
• M9: 5,451,047 km (0.073 R)
• M10: 6,131,867 km (0.103 R)
• M11: 8,484,144 km (0.054 R)
• M12: 11,128,137 km (0.117 R)
• M13: 12,499,201 km (0.089 R)
• M14: 13,297,456 km (0.109 R)
• M15: 14,892,019 km (0.109 R)
• M16: 15,521,826 km (0.082 R)
• M17: 16,722,349 km (0.099 R)
• M18: 17,925,415 km (0.115 R)
• M19: 19,369,783 km (0.085 R)
• M20: 21,217,167 km (0.1 R)
• M21: 22,421,430 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.6

Radius: 4.8

Gravity: 36.27 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.55 AU - 7.33 AU

Year: 10898 Days

Day: 19.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,391,224 km

• M1: 59,690 km (0.079 R)
• M2: 228,286 km (0.088 R)
• M3: 467,643 km (0.092 R)
• M4: 780,901 km (0.064 R)
• M5: 1,223,711 km (0.051 R)
• M6: 1,551,928 km (0.075 R)
• M7: 2,362,749 km (0.097 R)
• M8: 3,175,664 km (0.088 R)
• M9: 4,458,017 km (0.114 R)
• M10: 5,163,221 km (0.05 R)
• M11: 5,333,314 km (0.115 R)
• M12: 6,088,933 km (0.119 R)
• M13: 6,278,922 km (0.088 R)
• M14: 6,995,944 km (0.08 R)
• M15: 7,633,830 km (0.092 R)
• M16: 10,576,121 km (0.069 R)
• M17: 11,300,474 km (0.034 R)
• M18: 11,762,282 km (0.059 R)
• M19: 13,932,050 km (0.11 R)
• M20: 24,601,968 km (0.077 R)
• M21: 26,670,757 km (0.114 R)
• M22: 27,282,463 km (0.039 R)
• M23: 28,112,581 km (0.105 R)
• M24: 30,482,062 km (0.101 R)
• M25: 33,215,066 km (0.114 R)
• M26: 51,836,859 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.9

Radius: 3.3

Gravity: 27.36 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 8.22 AU - 12.34 AU

Year: 21980 Days

Day: 20.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,391,224 km

• M1: 41,588 km (0.112 R)
• M2: 205,847 km (0.081 R)
• M3: 353,201 km (0.116 R)
• M4: 1,082,490 km (0.06 R)
• M5: 6,533,388 km (0.106 R)
• M6: 7,170,824 km (0.064 R)
• M7: 8,036,398 km (0.101 R)
• M8: 8,969,440 km (0.118 R)
• M9: 9,330,718 km (0.111 R)
• M10: 10,872,923 km (0.086 R)
• M11: 11,106,296 km (0.116 R)
• M12: 15,749,664 km (0.059 R)
• M13: 20,282,928 km (0.111 R)
• M14: 21,265,038 km (0.06 R)
• M15: 28,488,222 km (0.111 R)
• M16: 30,289,081 km (0.028 R)
• M17: 30,866,977 km (0.074 R)
• M18: 45,064,115 km (0.104 R)
• M19: 46,885,020 km (0.062 R)
• M20: 50,027,922 km (0.114 R)
• M21: 50,511,123 km (0.08 R)
• M22: 52,309,588 km (0.108 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 311 - 18,266 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit