🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.8

Radius: 12.8

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.72 AU - 0.88 AU

Year: 477 Days

Day: 7.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 90,007,504 km

• M1: 159,172 km (0.109 R)
• M2: 870,660 km (0.082 R)
• M3: 1,893,610 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.4

Radius: 12.8

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.29 AU - 2.13 AU

Year: 1491 Days

Day: 13.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,007,504 km

• M1: 159,172 km (0.041 R)
• M2: 569,669 km (0.075 R)
• M3: 1,106,127 km (0.057 R)
• M4: 1,604,437 km (0.117 R)
• M5: 2,011,343 km (0.097 R)
• M6: 2,605,845 km (0.097 R)
• M7: 3,524,526 km (0.081 R)
• M8: 6,165,676 km (0.092 R)
• M9: 7,292,298 km (0.066 R)
• M10: 7,876,477 km (0.096 R)
• M11: 8,981,707 km (0.086 R)
• M12: 11,169,875 km (0.093 R)
• M13: 12,485,289 km (0.054 R)
• M14: 13,039,549 km (0.114 R)
• M15: 13,943,569 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.8

Radius: 8.5

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.07 AU - 2.15 AU

Year: 2044 Days

Day: 12 Hours

Environment

Temp: -204 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 90,007,504 km

• M1: 106,214 km (0.096 R)
• M2: 410,945 km (0.09 R)
• M3: 723,455 km (0.091 R)
• M4: 989,740 km (0.12 R)
• M5: 1,493,735 km (0.111 R)
• M6: 1,982,920 km (0.1 R)
• M7: 2,658,803 km (0.061 R)
• M8: 3,136,319 km (0.094 R)
• M9: 3,582,719 km (0.041 R)
• M10: 3,903,607 km (0.104 R)
• M11: 4,644,266 km (0.075 R)
• M12: 5,733,787 km (0.098 R)
• M13: 6,199,186 km (0.104 R)
• M14: 6,479,981 km (0.106 R)
• M15: 8,044,027 km (0.101 R)
• M16: 10,298,617 km (0.069 R)
• M17: 10,584,648 km (0.026 R)
• M18: 11,172,867 km (0.089 R)
• M19: 11,860,269 km (0.115 R)
• M20: 12,174,873 km (0.107 R)
• M21: 12,657,027 km (0.112 R)
• M22: 13,361,783 km (0.093 R)
• M23: 14,048,886 km (0.084 R)
• M24: 14,401,039 km (0.103 R)
• M25: 15,869,342 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.2

Radius: 9.1

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.7 AU - 2.66 AU

Year: 2146 Days

Day: 10.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,007,504 km

• M1: 113,246 km (0.052 R)
• M2: 452,833 km (0.032 R)
• M3: 845,677 km (0.106 R)
• M4: 1,169,855 km (0.118 R)
• M5: 1,632,711 km (0.12 R)
• M6: 1,939,088 km (0.096 R)
• M7: 3,431,177 km (0.114 R)
• M8: 3,837,335 km (0.101 R)
• M9: 4,785,636 km (0.094 R)
• M10: 5,659,736 km (0.09 R)
• M11: 6,759,879 km (0.117 R)
• M12: 7,268,961 km (0.115 R)
• M13: 7,667,340 km (0.102 R)
• M14: 8,277,998 km (0.12 R)
• M15: 9,071,465 km (0.036 R)
• M16: 9,596,554 km (0.09 R)
• M17: 10,843,452 km (0.113 R)
• M18: 11,258,736 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.6

Radius: 11.3

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.83 AU - 2.71 AU

Year: 2281 Days

Day: 8.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,007,504 km

• M1: 140,622 km (0.103 R)
• M2: 519,703 km (0.114 R)
• M3: 1,580,053 km (0.077 R)
• M4: 2,156,902 km (0.092 R)
• M5: 3,606,655 km (0.045 R)
• M6: 4,218,062 km (0.091 R)
• M7: 5,055,660 km (0.113 R)
• M8: 5,624,132 km (0.081 R)
• M9: 6,917,256 km (0.106 R)
• M10: 8,399,472 km (0.072 R)
• M11: 9,510,385 km (0.098 R)
• M12: 9,937,936 km (0.064 R)
• M13: 10,831,484 km (0.102 R)
• M14: 13,037,006 km (0.067 R)
• M15: 13,431,794 km (0.102 R)
• M16: 13,789,333 km (0.071 R)
• M17: 14,805,701 km (0.107 R)
• M18: 15,332,286 km (0.042 R)
• M19: 16,626,607 km (0.115 R)
• M20: 17,670,800 km (0.11 R)
• M21: 18,046,440 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.6

Radius: 10.3

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.83 AU - 3.13 AU

Year: 3430 Days

Day: 5.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 90,007,504 km

• M1: 128,205 km (0.083 R)
• M2: 583,432 km (0.101 R)
• M3: 939,475 km (0.115 R)
• M4: 1,310,627 km (0.108 R)
• M5: 2,500,528 km (0.066 R)
• M6: 2,901,600 km (0.098 R)
• M7: 4,255,162 km (0.09 R)
• M8: 4,755,567 km (0.095 R)
• M9: 5,510,886 km (0.108 R)
• M10: 5,960,877 km (0.055 R)
• M11: 7,594,785 km (0.113 R)
• M12: 9,829,328 km (0.109 R)
• M13: 10,620,102 km (0.087 R)
• M14: 16,223,889 km (0.095 R)
• M15: 17,686,208 km (0.094 R)
• M16: 20,670,237 km (0.05 R)
• M17: 22,036,365 km (0.119 R)
• M18: 22,599,302 km (0.113 R)
• M19: 22,955,943 km (0.099 R)
• M20: 23,316,324 km (0.062 R)
• M21: 25,023,236 km (0.088 R)
• M22: 25,558,946 km (0.118 R)
• M23: 25,946,105 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.2

Radius: 14.4

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.12 AU - 4.14 AU

Year: 4612 Days

Day: 14.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,007,504 km

• M1: 179,368 km (0.026 R)
• M2: 709,991 km (0.085 R)
• M3: 1,164,021 km (0.06 R)
• M4: 1,873,414 km (0.09 R)
• M5: 2,359,607 km (0.075 R)
• M6: 2,860,910 km (0.101 R)
• M7: 3,675,919 km (0.063 R)
• M8: 4,240,800 km (0.12 R)
• M9: 4,838,294 km (0.103 R)
• M10: 7,171,423 km (0.073 R)
• M11: 9,645,323 km (0.079 R)
• M12: 11,387,091 km (0.086 R)
• M13: 13,632,106 km (0.073 R)
• M14: 14,512,639 km (0.115 R)
• M15: 15,102,204 km (0.097 R)
• M16: 15,932,173 km (0.081 R)
• M17: 16,387,100 km (0.101 R)
• M18: 18,418,340 km (0.115 R)
• M19: 21,153,289 km (0.086 R)
• M20: 25,515,263 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.8

Radius: 12.4

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 3.77 AU - 4.49 AU

Year: 5597 Days

Day: 8.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 90,007,504 km

• M1: 154,235 km (0.042 R)
• M2: 1,115,402 km (0.09 R)
• M3: 1,600,248 km (0.075 R)
• M4: 2,066,994 km (0.103 R)
• M5: 2,624,695 km (0.102 R)
• M6: 3,415,170 km (0.046 R)
• M7: 4,480,307 km (0.084 R)
• M8: 5,398,239 km (0.114 R)
• M9: 6,229,854 km (0.106 R)
• M10: 6,650,074 km (0.11 R)
• M11: 7,402,103 km (0.111 R)
• M12: 8,555,652 km (0.077 R)
• M13: 9,513,976 km (0.106 R)
• M14: 12,862,275 km (0.111 R)
• M15: 13,415,937 km (0.075 R)
• M16: 15,408,880 km (0.115 R)
• M17: 15,839,722 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 781.1

Radius: 3.3

Gravity: 71.73 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 8.27 AU - 13.59 AU

Year: 24097 Days

Day: 19.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 90,007,504 km

• M1: 49,218 km (0.062 R)
• M2: 154,385 km (0.086 R)
• M3: 304,132 km (0.096 R)
• M4: 2,058,616 km (0.083 R)
• M5: 2,190,113 km (0.095 R)
• M6: 2,618,860 km (0.09 R)
• M7: 2,799,724 km (0.077 R)
• M8: 2,934,063 km (0.114 R)
• M9: 3,244,927 km (0.105 R)
• M10: 3,453,766 km (0.064 R)
• M11: 4,066,070 km (0.063 R)
• M12: 4,451,883 km (0.116 R)
• M13: 4,635,140 km (0.072 R)
• M14: 5,296,064 km (0.115 R)
• M15: 5,973,293 km (0.057 R)
• M16: 7,045,312 km (0.069 R)
• M17: 9,322,191 km (0.112 R)
• M18: 11,286,860 km (0.111 R)
• M19: 13,895,099 km (0.08 R)
• M20: 14,050,681 km (0.038 R)
• M21: 16,267,572 km (0.084 R)
• M22: 18,052,424 km (0.116 R)
• M23: 23,185,725 km (0.118 R)
• M24: 25,091,752 km (0.084 R)
• M25: 27,587,194 km (0.119 R)
• M26: 27,710,014 km (0.074 R)
• M27: 29,211,976 km (0.05 R)
• M28: 32,105,199 km (0.099 R)
• M29: 35,909,622 km (0.101 R)
• M30: 38,913,847 km (0.087 R)
• M31: 42,081,283 km (0.087 R)
• M32: 55,878,694 km (0.112 R)
• M33: 56,470,055 km (0.104 R)
• M34: 70,096,775 km (0.093 R)
• M35: 72,173,044 km (0.105 R)
• M36: 72,639,939 km (0.117 R)
• M37: 75,243,690 km (0.111 R)
• M38: 77,419,890 km (0.05 R)
• M39: 89,200,274 km (0.058 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: 520 - 11,072 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit