🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.5

Radius: 14.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.81 AU - 1.05 AU

Year: 630 Days

Day: 9.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,600,530 km

• M1: 179,368 km (0.099 R)
• M2: 709,991 km (0.103 R)
• M3: 1,232,836 km (0.031 R)
• M4: 1,692,102 km (0.107 R)
• M5: 2,251,149 km (0.074 R)
• M6: 2,716,847 km (0.097 R)
• M7: 3,786,472 km (0.099 R)
• M8: 4,252,619 km (0.094 R)
• M9: 5,002,403 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.3

Radius: 11.3

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.9 AU - 0.96 AU

Year: 630 Days

Day: 11.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 93.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,600,530 km

• M1: 140,921 km (0.108 R)
• M2: 548,426 km (0.067 R)
• M3: 1,038,808 km (0.109 R)
• M4: 2,178,594 km (0.057 R)
• M5: 2,631,576 km (0.043 R)
• M6: 3,109,841 km (0.118 R)
• M7: 3,673,376 km (0.099 R)
• M8: 4,257,855 km (0.088 R)
• M9: 5,057,455 km (0.063 R)
• M10: 5,484,258 km (0.096 R)
• M11: 5,839,104 km (0.099 R)
• M12: 6,636,910 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.7

Radius: 8.4

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.56 AU - 1.74 AU

Year: 1490 Days

Day: 6.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,600,530 km

• M1: 104,569 km (0.086 R)
• M2: 424,409 km (0.098 R)
• M3: 795,113 km (0.049 R)
• M4: 1,476,232 km (0.088 R)
• M5: 2,198,042 km (0.069 R)
• M6: 2,860,162 km (0.055 R)
• M7: 4,076,991 km (0.047 R)
• M8: 4,593,702 km (0.116 R)
• M9: 6,156,401 km (0.075 R)
• M10: 6,959,143 km (0.118 R)
• M11: 7,258,489 km (0.106 R)
• M12: 7,592,690 km (0.109 R)
• M13: 8,126,755 km (0.07 R)
• M14: 8,459,012 km (0.116 R)
• M15: 10,226,660 km (0.103 R)
• M16: 10,778,676 km (0.119 R)
• M17: 11,282,223 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.9

Radius: 14.1

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.6 AU - 3.56 AU

Year: 3800 Days

Day: 7.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,600,530 km

• M1: 178,470 km (0.115 R)
• M2: 758,012 km (0.053 R)
• M3: 1,393,355 km (0.088 R)
• M4: 1,848,880 km (0.059 R)
• M5: 2,594,177 km (0.046 R)
• M6: 3,092,637 km (0.113 R)
• M7: 3,573,744 km (0.097 R)
• M8: 5,091,115 km (0.046 R)
• M9: 10,629,378 km (0.072 R)
• M10: 12,772,068 km (0.081 R)
• M11: 13,412,496 km (0.097 R)
• M12: 14,651,017 km (0.063 R)
• M13: 17,534,666 km (0.063 R)
• M14: 19,141,796 km (0.113 R)
• M15: 20,244,481 km (0.111 R)
• M16: 20,845,117 km (0.119 R)
• M17: 21,389,055 km (0.101 R)
• M18: 24,177,559 km (0.117 R)
• M19: 24,778,344 km (0.089 R)
• M20: 25,620,431 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.7

Radius: 13.6

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.65 AU - 3.59 AU

Year: 3874 Days

Day: 7.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,600,530 km

• M1: 169,195 km (0.085 R)
• M2: 669,301 km (0.109 R)
• M3: 1,509,143 km (0.115 R)
• M4: 2,102,598 km (0.078 R)
• M5: 2,632,324 km (0.083 R)
• M6: 4,317,843 km (0.079 R)
• M7: 5,015,568 km (0.093 R)
• M8: 8,016,351 km (0.069 R)
• M9: 8,896,286 km (0.076 R)
• M10: 9,653,251 km (0.089 R)
• M11: 10,491,897 km (0.108 R)
• M12: 11,213,707 km (0.099 R)
• M13: 11,670,878 km (0.093 R)
• M14: 12,981,654 km (0.109 R)
• M15: 13,486,248 km (0.083 R)
• M16: 15,078,717 km (0.067 R)
• M17: 16,685,997 km (0.08 R)
• M18: 18,634,958 km (0.09 R)
• M19: 19,218,689 km (0.118 R)
• M20: 20,117,024 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.7

Radius: 13.6

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5 AU - 5.66 AU

Year: 8650 Days

Day: 6.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,600,530 km

• M1: 214,972 km (0.074 R)
• M2: 1,044,941 km (0.061 R)
• M3: 2,093,173 km (0.066 R)
• M4: 3,103,109 km (0.036 R)
• M5: 6,389,325 km (0.037 R)
• M6: 7,652,829 km (0.076 R)
• M7: 8,716,470 km (0.089 R)
• M8: 9,588,924 km (0.096 R)
• M9: 10,569,389 km (0.116 R)
• M10: 11,669,681 km (0.118 R)
• M11: 14,036,469 km (0.042 R)
• M12: 14,595,965 km (0.105 R)
• M13: 16,364,661 km (0.079 R)
• M14: 18,641,391 km (0.119 R)
• M15: 19,242,026 km (0.102 R)
• M16: 29,569,814 km (0.081 R)
• M17: 32,067,800 km (0.072 R)
• M18: 37,599,031 km (0.108 R)
• M19: 41,155,571 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.6

Radius: 5.3

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5.97 AU - 8.93 AU

Year: 14294 Days

Day: 17.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,600,530 km

• M1: 76,295 km (0.052 R)
• M2: 536,009 km (0.112 R)
• M3: 1,644,978 km (0.12 R)
• M4: 2,212,104 km (0.105 R)
• M5: 2,965,927 km (0.104 R)
• M6: 4,456,371 km (0.066 R)
• M7: 5,121,334 km (0.095 R)
• M8: 6,132,017 km (0.118 R)
• M9: 7,070,444 km (0.057 R)
• M10: 8,994,722 km (0.084 R)
• M11: 9,227,945 km (0.081 R)
• M12: 10,051,631 km (0.118 R)
• M13: 11,028,953 km (0.056 R)
• M14: 18,330,825 km (0.1 R)
• M15: 19,163,188 km (0.095 R)
• M16: 20,179,107 km (0.103 R)
• M17: 20,579,132 km (0.087 R)
• M18: 24,693,522 km (0.118 R)
• M19: 28,315,436 km (0.12 R)
• M20: 28,615,530 km (0.068 R)
• M21: 29,019,145 km (0.088 R)
• M22: 31,306,646 km (0.077 R)
• M23: 32,385,097 km (0.118 R)
• M24: 38,639,484 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.4

Radius: 6.3

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 7.82 AU - 8.7 AU

Year: 16687 Days

Day: 18.7 Hours

Environment

Temp: -243 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,600,530 km

• M1: 80,334 km (0.074 R)
• M2: 317,895 km (0.099 R)
• M3: 1,117,646 km (0.104 R)
• M4: 1,336,208 km (0.11 R)
• M5: 2,064,002 km (0.099 R)
• M6: 2,535,086 km (0.108 R)
• M7: 4,067,267 km (0.048 R)
• M8: 4,323,678 km (0.099 R)
• M9: 4,560,491 km (0.07 R)
• M10: 7,100,513 km (0.071 R)
• M11: 8,715,273 km (0.116 R)
• M12: 9,287,784 km (0.103 R)
• M13: 11,945,240 km (0.028 R)
• M14: 12,953,380 km (0.104 R)
• M15: 13,698,378 km (0.052 R)
• M16: 17,333,307 km (0.106 R)
• M17: 24,424,545 km (0.109 R)
• M18: 31,766,958 km (0.089 R)
• M19: 49,099,966 km (0.075 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 13,991 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit