🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.7

Radius: 11

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.62 AU - 0.66 AU

Year: 347 Days

Day: 7.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,754,224 km

• M1: 136,732 km (0.048 R)
• M2: 531,372 km (0.107 R)
• M3: 1,370,167 km (0.111 R)
• M4: 1,766,152 km (0.071 R)
• M5: 2,264,613 km (0.093 R)
• M6: 3,476,804 km (0.098 R)
• M7: 4,080,731 km (0.108 R)
• M8: 4,959,020 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.1

Radius: 14.6

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.93 AU - 1.01 AU

Year: 648 Days

Day: 12.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,754,224 km

• M1: 181,612 km (0.069 R)
• M2: 731,833 km (0.089 R)
• M3: 1,329,925 km (0.063 R)
• M4: 2,034,381 km (0.113 R)
• M5: 2,743,625 km (0.081 R)
• M6: 3,627,599 km (0.058 R)
• M7: 4,292,412 km (0.099 R)
• M8: 5,121,932 km (0.106 R)
• M9: 5,611,416 km (0.082 R)
• M10: 6,544,308 km (0.117 R)
• M11: 7,186,233 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.7

Radius: 12.7

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.15 AU - 1.33 AU

Year: 937 Days

Day: 14 Hours

Environment

Temp: -192 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,754,224 km

• M1: 157,975 km (0.095 R)
• M2: 642,074 km (0.12 R)
• M3: 1,144,274 km (0.115 R)
• M4: 1,545,196 km (0.072 R)
• M5: 2,872,429 km (0.093 R)
• M6: 3,411,729 km (0.096 R)
• M7: 4,610,307 km (0.098 R)
• M8: 5,032,024 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.4

Radius: 12.5

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.1 AU - 2.54 AU

Year: 2397 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,754,224 km

• M1: 155,432 km (0.098 R)
• M2: 1,087,427 km (0.109 R)
• M3: 1,564,046 km (0.104 R)
• M4: 2,246,661 km (0.12 R)
• M5: 4,187,843 km (0.056 R)
• M6: 4,593,552 km (0.102 R)
• M7: 5,264,050 km (0.104 R)
• M8: 6,916,957 km (0.059 R)
• M9: 7,736,005 km (0.103 R)
• M10: 8,152,934 km (0.075 R)
• M11: 8,927,552 km (0.098 R)
• M12: 9,787,441 km (0.09 R)
• M13: 10,429,365 km (0.084 R)
• M14: 11,179,748 km (0.104 R)
• M15: 11,797,438 km (0.087 R)
• M16: 14,306,792 km (0.03 R)
• M17: 14,789,694 km (0.084 R)
• M18: 16,252,163 km (0.087 R)
• M19: 17,153,041 km (0.08 R)
• M20: 17,808,879 km (0.059 R)
• M21: 18,481,321 km (0.08 R)
• M22: 19,462,833 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.2

Radius: 13.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.56 AU - 3.08 AU

Year: 3212 Days

Day: 7.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,754,224 km

• M1: 167,849 km (0.115 R)
• M2: 832,512 km (0.032 R)
• M3: 1,307,785 km (0.116 R)
• M4: 2,559,021 km (0.09 R)
• M5: 3,153,074 km (0.096 R)
• M6: 3,801,731 km (0.062 R)
• M7: 4,919,227 km (0.081 R)
• M8: 6,042,258 km (0.035 R)
• M9: 6,584,550 km (0.104 R)
• M10: 7,560,826 km (0.05 R)
• M11: 9,120,234 km (0.057 R)
• M12: 9,593,113 km (0.101 R)
• M13: 10,661,840 km (0.053 R)
• M14: 11,340,267 km (0.1 R)
• M15: 12,370,996 km (0.029 R)
• M16: 14,121,889 km (0.068 R)
• M17: 15,456,602 km (0.043 R)
• M18: 16,228,227 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.1

Radius: 10.9

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.42 AU - 4.44 AU

Year: 5284 Days

Day: 6.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,754,224 km

• M1: 141,071 km (0.098 R)
• M2: 511,924 km (0.039 R)
• M3: 895,044 km (0.077 R)
• M4: 2,105,440 km (0.064 R)
• M5: 2,574,879 km (0.056 R)
• M6: 3,080,669 km (0.097 R)
• M7: 3,489,520 km (0.089 R)
• M8: 5,649,115 km (0.107 R)
• M9: 6,398,899 km (0.113 R)
• M10: 11,778,140 km (0.049 R)
• M11: 16,861,326 km (0.077 R)
• M12: 17,705,357 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.7

Radius: 12.1

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.38 AU - 4.88 AU

Year: 5693 Days

Day: 7.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,754,224 km

• M1: 170,392 km (0.117 R)
• M2: 546,780 km (0.093 R)
• M3: 1,279,810 km (0.116 R)
• M4: 2,262,219 km (0.116 R)
• M5: 3,648,393 km (0.106 R)
• M6: 4,094,943 km (0.106 R)
• M7: 4,657,580 km (0.082 R)
• M8: 8,684,904 km (0.118 R)
• M9: 9,616,600 km (0.094 R)
• M10: 10,061,654 km (0.114 R)
• M11: 10,520,470 km (0.075 R)
• M12: 12,392,688 km (0.084 R)
• M13: 15,063,309 km (0.077 R)
• M14: 21,140,722 km (0.072 R)
• M15: 29,416,477 km (0.073 R)
• M16: 31,413,458 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 636.4

Radius: 5.8

Gravity: 18.92 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 9.21 AU - 11.81 AU

Year: 23110 Days

Day: 22.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,754,224 km

• M1: 72,405 km (0.077 R)
• M2: 388,206 km (0.117 R)
• M3: 614,847 km (0.119 R)
• M4: 1,105,379 km (0.094 R)
• M5: 2,105,740 km (0.103 R)
• M6: 5,538,562 km (0.103 R)
• M7: 6,342,501 km (0.049 R)
• M8: 8,770,923 km (0.079 R)
• M9: 8,993,076 km (0.052 R)
• M10: 12,027,370 km (0.115 R)
• M11: 12,370,846 km (0.054 R)
• M12: 12,791,665 km (0.072 R)
• M13: 13,514,223 km (0.114 R)
• M14: 26,556,913 km (0.087 R)
• M15: 28,209,371 km (0.094 R)
• M16: 31,328,337 km (0.083 R)
• M17: 33,983,400 km (0.102 R)
• M18: 37,946,846 km (0.062 R)
• M19: 41,269,116 km (0.111 R)
• M20: 56,307,442 km (0.108 R)
• M21: 57,268,159 km (0.107 R)
• M22: 62,236,155 km (0.033 R)
• M23: 67,699,619 km (0.072 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 15,076 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit