🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.3

Radius: 9.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.53 AU - 0.83 AU

Year: 357 Days

Day: 10.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,026,171 km

• M1: 115,789 km (0.098 R)
• M2: 625,170 km (0.112 R)
• M3: 921,074 km (0.081 R)
• M4: 1,281,755 km (0.099 R)
• M5: 1,906,924 km (0.084 R)
• M6: 2,201,033 km (0.118 R)
• M7: 2,570,241 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.3

Radius: 13.8

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.62 AU - 0.8 AU

Year: 380 Days

Day: 12.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,026,171 km

• M1: 171,589 km (0.08 R)
• M2: 677,080 km (0.102 R)
• M3: 1,242,111 km (0.032 R)
• M4: 1,716,486 km (0.073 R)
• M5: 2,270,896 km (0.069 R)
• M6: 2,705,777 km (0.092 R)
• M7: 3,196,906 km (0.082 R)
• M8: 3,639,866 km (0.102 R)
• M9: 4,375,439 km (0.083 R)
• M10: 4,983,105 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.3

Radius: 14.4

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1 AU - 1.06 AU

Year: 665 Days

Day: 7.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,026,171 km

• M1: 179,069 km (0.111 R)
• M2: 639,531 km (0.097 R)
• M3: 1,459,327 km (0.117 R)
• M4: 1,963,322 km (0.076 R)
• M5: 3,374,629 km (0.078 R)
• M6: 4,124,413 km (0.1 R)
• M7: 4,949,146 km (0.053 R)
• M8: 6,151,913 km (0.12 R)
• M9: 6,759,430 km (0.078 R)
• M10: 7,496,499 km (0.048 R)
• M11: 7,954,568 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.4

Radius: 12.1

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.05 AU - 1.29 AU

Year: 805 Days

Day: 9.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,026,171 km

• M1: 152,440 km (0.052 R)
• M2: 683,363 km (0.061 R)
• M3: 1,155,793 km (0.1 R)
• M4: 1,600,248 km (0.06 R)
• M5: 2,017,626 km (0.087 R)
• M6: 2,475,845 km (0.113 R)
• M7: 3,115,376 km (0.1 R)
• M8: 3,732,616 km (0.081 R)
• M9: 4,147,302 km (0.106 R)
• M10: 5,524,201 km (0.081 R)
• M11: 6,535,632 km (0.089 R)
• M12: 7,141,204 km (0.067 R)
• M13: 7,713,266 km (0.059 R)
• M14: 8,192,877 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.7

Radius: 9.9

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.06 AU - 2.08 AU

Year: 1894 Days

Day: 14.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,026,171 km

• M1: 123,119 km (0.086 R)
• M2: 459,714 km (0.119 R)
• M3: 978,968 km (0.077 R)
• M4: 1,353,113 km (0.092 R)
• M5: 1,700,928 km (0.057 R)
• M6: 2,815,582 km (0.055 R)
• M7: 4,341,031 km (0.05 R)
• M8: 4,857,742 km (0.098 R)
• M9: 5,414,994 km (0.069 R)
• M10: 6,281,016 km (0.073 R)
• M11: 6,734,597 km (0.11 R)
• M12: 7,345,704 km (0.089 R)
• M13: 8,022,335 km (0.11 R)
• M14: 9,146,414 km (0.114 R)
• M15: 9,829,328 km (0.059 R)
• M16: 10,899,252 km (0.062 R)
• M17: 11,817,185 km (0.066 R)
• M18: 13,890,461 km (0.061 R)
• M19: 14,272,534 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564

Radius: 8.9

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.2 AU - 4.72 AU

Year: 5010 Days

Day: 11.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,026,171 km

• M1: 110,852 km (0.058 R)
• M2: 395,238 km (0.115 R)
• M3: 1,249,890 km (0.098 R)
• M4: 1,623,286 km (0.077 R)
• M5: 2,734,948 km (0.118 R)
• M6: 3,331,245 km (0.076 R)
• M7: 7,792,104 km (0.095 R)
• M8: 9,264,147 km (0.078 R)
• M9: 18,129,467 km (0.11 R)
• M10: 18,893,313 km (0.106 R)
• M11: 19,348,839 km (0.11 R)
• M12: 22,308,932 km (0.093 R)
• M13: 27,668,725 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.6

Radius: 10.6

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.69 AU - 5.63 AU

Year: 6396 Days

Day: 8.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,026,171 km

• M1: 134,339 km (0.057 R)
• M2: 594,352 km (0.05 R)
• M3: 1,410,110 km (0.096 R)
• M4: 1,845,439 km (0.075 R)
• M5: 2,210,458 km (0.096 R)
• M6: 2,712,808 km (0.085 R)
• M7: 5,151,702 km (0.112 R)
• M8: 5,524,350 km (0.094 R)
• M9: 6,196,493 km (0.098 R)
• M10: 6,752,399 km (0.106 R)
• M11: 7,593,738 km (0.082 R)
• M12: 8,385,858 km (0.038 R)
• M13: 10,860,357 km (0.03 R)
• M14: 12,214,068 km (0.104 R)
• M15: 13,247,789 km (0.067 R)
• M16: 15,785,268 km (0.084 R)
• M17: 18,431,056 km (0.104 R)
• M18: 19,859,117 km (0.101 R)
• M19: 21,068,018 km (0.081 R)
• M20: 24,184,590 km (0.07 R)
• M21: 26,481,665 km (0.075 R)
• M22: 27,163,832 km (0.091 R)
• M23: 31,695,750 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 951.6

Radius: 7.7

Gravity: 16.05 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 7 AU - 7.56 AU

Year: 12489 Days

Day: 21.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,026,171 km

• M1: 95,743 km (0.061 R)
• M2: 422,016 km (0.095 R)
• M3: 711,188 km (0.099 R)
• M4: 1,110,615 km (0.095 R)
• M5: 3,335,584 km (0.112 R)
• M6: 4,271,019 km (0.064 R)
• M7: 6,123,789 km (0.089 R)
• M8: 13,674,442 km (0.106 R)
• M9: 15,361,158 km (0.098 R)
• M10: 15,803,519 km (0.085 R)
• M11: 17,498,912 km (0.106 R)
• M12: 22,923,480 km (0.113 R)
• M13: 25,703,607 km (0.057 R)
• M14: 30,514,076 km (0.092 R)
• M15: 37,329,007 km (0.052 R)
• M16: 38,397,884 km (0.075 R)
• M17: 40,317,225 km (0.036 R)
• M18: 41,159,012 km (0.049 R)
• M19: 48,952,014 km (0.098 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 14,057 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit