🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.7

Radius: 12.5

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.73 AU - 0.85 AU

Year: 453 Days

Day: 6.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,353,893 km

• M1: 155,582 km (0.101 R)
• M2: 564,433 km (0.084 R)
• M3: 1,020,257 km (0.093 R)
• M4: 1,944,324 km (0.07 R)
• M5: 2,510,402 km (0.11 R)
• M6: 3,268,115 km (0.034 R)
• M7: 4,130,696 km (0.083 R)
• M8: 5,390,161 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.7

Radius: 14.1

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.99 AU - 1.25 AU

Year: 765 Days

Day: 11.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,353,893 km

• M1: 175,329 km (0.106 R)
• M2: 754,422 km (0.11 R)
• M3: 1,265,299 km (0.041 R)
• M4: 1,843,794 km (0.098 R)
• M5: 2,467,617 km (0.108 R)
• M6: 2,955,755 km (0.038 R)
• M7: 3,994,263 km (0.074 R)
• M8: 5,263,751 km (0.114 R)
• M9: 6,142,040 km (0.066 R)
• M10: 6,680,293 km (0.057 R)
• M11: 7,454,761 km (0.094 R)
• M12: 7,923,900 km (0.091 R)
• M13: 8,462,602 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649

Radius: 13

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.18 AU - 1.7 AU

Year: 1116 Days

Day: 9.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 170.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,353,893 km

• M1: 161,715 km (0.087 R)
• M2: 587,920 km (0.105 R)
• M3: 1,263,504 km (0.099 R)
• M4: 1,789,340 km (0.098 R)
• M5: 2,248,157 km (0.102 R)
• M6: 2,836,675 km (0.028 R)
• M7: 3,280,233 km (0.093 R)
• M8: 4,588,466 km (0.106 R)
• M9: 6,045,100 km (0.097 R)
• M10: 6,809,695 km (0.105 R)
• M11: 7,289,007 km (0.057 R)
• M12: 9,146,863 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860

Radius: 11.3

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.57 AU - 1.71 AU

Year: 1356 Days

Day: 8.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,353,893 km

• M1: 140,472 km (0.088 R)
• M2: 1,024,596 km (0.074 R)
• M3: 1,597,406 km (0.071 R)
• M4: 2,151,517 km (0.117 R)
• M5: 2,681,841 km (0.071 R)
• M6: 4,313,355 km (0.069 R)
• M7: 5,245,649 km (0.115 R)
• M8: 5,839,254 km (0.11 R)
• M9: 7,239,789 km (0.092 R)
• M10: 9,283,296 km (0.104 R)
• M11: 10,286,350 km (0.052 R)
• M12: 13,287,283 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.4

Radius: 4.8

Gravity: 26.58 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.23 AU - 7.71 AU

Year: 10626 Days

Day: 21.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,353,893 km

• M1: 142,716 km (0.108 R)
• M2: 312,660 km (0.084 R)
• M3: 585,077 km (0.033 R)
• M4: 893,997 km (0.078 R)
• M5: 1,148,164 km (0.038 R)
• M6: 3,418,162 km (0.069 R)
• M7: 3,694,469 km (0.097 R)
• M8: 6,812,238 km (0.11 R)
• M9: 10,381,045 km (0.117 R)
• M10: 16,042,576 km (0.08 R)
• M11: 16,531,911 km (0.086 R)
• M12: 18,973,049 km (0.08 R)
• M13: 22,849,429 km (0.101 R)
• M14: 24,098,721 km (0.092 R)
• M15: 25,205,296 km (0.117 R)
• M16: 25,392,892 km (0.113 R)
• M17: 27,321,059 km (0.116 R)
• M18: 28,932,228 km (0.119 R)
• M19: 29,552,311 km (0.087 R)
• M20: 34,836,108 km (0.085 R)
• M21: 41,364,260 km (0.061 R)

Asteroid Belt

Center: 6.91 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.6

Radius: 3.7

Gravity: 44.38 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.31 AU - 8.39 AU

Year: 12866 Days

Day: 22.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,353,893 km

• M1: 46,076 km (0.064 R)
• M2: 171,140 km (0.059 R)
• M3: 413,489 km (0.075 R)
• M4: 991,684 km (0.119 R)
• M5: 2,340,159 km (0.075 R)
• M6: 2,781,024 km (0.091 R)
• M7: 3,993,216 km (0.076 R)
• M8: 4,683,012 km (0.07 R)
• M9: 5,072,714 km (0.119 R)
• M10: 8,381,520 km (0.065 R)
• M11: 9,053,214 km (0.1 R)
• M12: 11,112,429 km (0.115 R)
• M13: 16,564,972 km (0.07 R)
• M14: 16,787,125 km (0.098 R)
• M15: 27,088,584 km (0.114 R)
• M16: 41,882,916 km (0.079 R)
• M17: 50,189,188 km (0.06 R)
• M18: 50,966,199 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 342.7

Radius: 4.9

Gravity: 14.27 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 9.19 AU - 9.73 AU

Year: 18787 Days

Day: 17.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,353,893 km

• M1: 67,319 km (0.043 R)
• M2: 345,272 km (0.072 R)
• M3: 1,089,970 km (0.099 R)
• M4: 2,416,903 km (0.058 R)
• M5: 2,694,108 km (0.112 R)
• M6: 3,991,570 km (0.094 R)
• M7: 6,461,431 km (0.029 R)
• M8: 8,579,887 km (0.093 R)
• M9: 10,835,374 km (0.088 R)
• M10: 14,532,236 km (0.107 R)
• M11: 15,954,613 km (0.1 R)
• M12: 22,115,502 km (0.06 R)
• M13: 24,574,442 km (0.078 R)
• M14: 25,067,367 km (0.088 R)
• M15: 37,778,399 km (0.066 R)
• M16: 38,965,309 km (0.06 R)
• M17: 44,541,719 km (0.113 R)
• M18: 56,216,337 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.3

Radius: 3.5

Gravity: 33.66 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.83 AU - 11.93 AU

Year: 20052 Days

Day: 24.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 64,353,893 km

• M1: 43,533 km (0.084 R)
• M2: 169,195 km (0.083 R)
• M3: 431,291 km (0.059 R)
• M4: 597,494 km (0.115 R)
• M5: 1,109,867 km (0.054 R)
• M6: 1,779,915 km (0.105 R)
• M7: 2,848,343 km (0.084 R)
• M8: 3,301,027 km (0.108 R)
• M9: 3,656,621 km (0.118 R)
• M10: 4,980,412 km (0.081 R)
• M11: 8,325,869 km (0.092 R)
• M12: 10,684,878 km (0.029 R)
• M13: 13,117,639 km (0.073 R)
• M14: 14,073,868 km (0.112 R)
• M15: 14,284,801 km (0.034 R)
• M16: 17,300,395 km (0.108 R)
• M17: 17,704,758 km (0.085 R)
• M18: 19,126,985 km (0.028 R)
• M19: 19,822,017 km (0.119 R)
• M20: 21,078,340 km (0.114 R)
• M21: 23,452,159 km (0.105 R)
• M22: 25,892,848 km (0.096 R)
• M23: 28,274,297 km (0.1 R)
• M24: 30,797,564 km (0.109 R)
• M25: 33,466,839 km (0.085 R)
• M26: 36,023,616 km (0.094 R)
• M27: 37,349,502 km (0.113 R)
• M28: 41,378,023 km (0.115 R)
• M29: 45,533,403 km (0.041 R)
• M30: 46,925,710 km (0.115 R)
• M31: 48,028,247 km (0.049 R)
• M32: 54,488,032 km (0.101 R)
• M33: 55,881,088 km (0.035 R)
• M34: 56,232,942 km (0.053 R)
• M35: 59,101,631 km (0.04 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: 237 - 19,301 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit