🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.9

Radius: 10.4

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.73 AU - 0.75 AU

Year: 439 Days

Day: 6.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,691,671 km

• M1: 132,843 km (0.114 R)
• M2: 690,095 km (0.05 R)
• M3: 1,146,518 km (0.099 R)
• M4: 1,471,145 km (0.03 R)
• M5: 1,826,141 km (0.115 R)
• M6: 2,313,681 km (0.104 R)
• M7: 2,747,814 km (0.106 R)
• M8: 3,431,027 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.7

Radius: 13.6

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.55 AU - 1.79 AU

Year: 1490 Days

Day: 11.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,691,671 km

• M1: 169,794 km (0.1 R)
• M2: 716,873 km (0.107 R)
• M3: 1,186,461 km (0.08 R)
• M4: 1,985,613 km (0.103 R)
• M5: 2,507,560 km (0.06 R)
• M6: 3,244,030 km (0.12 R)
• M7: 3,820,730 km (0.105 R)
• M8: 4,380,824 km (0.1 R)
• M9: 4,949,894 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.1

Radius: 13.7

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.84 AU - 1.86 AU

Year: 1737 Days

Day: 7.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,691,671 km

• M1: 171,888 km (0.06 R)
• M2: 791,373 km (0.057 R)
• M3: 1,422,825 km (0.075 R)
• M4: 2,220,032 km (0.098 R)
• M5: 4,119,925 km (0.073 R)
• M6: 5,222,611 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.8

Radius: 11.7

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.78 AU - 2.36 AU

Year: 2056 Days

Day: 11.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,691,671 km

• M1: 145,708 km (0.116 R)
• M2: 624,272 km (0.12 R)
• M3: 1,038,808 km (0.026 R)
• M4: 1,429,856 km (0.093 R)
• M5: 2,855,973 km (0.102 R)
• M6: 3,233,558 km (0.051 R)
• M7: 5,653,902 km (0.108 R)
• M8: 6,024,157 km (0.101 R)
• M9: 8,003,785 km (0.096 R)
• M10: 8,925,458 km (0.089 R)
• M11: 11,055,582 km (0.074 R)
• M12: 12,485,588 km (0.114 R)
• M13: 14,080,301 km (0.089 R)
• M14: 15,709,871 km (0.097 R)
• M15: 16,099,274 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.9

Radius: 8.3

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.35 AU - 2.75 AU

Year: 2811 Days

Day: 8.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,691,671 km

• M1: 103,223 km (0.037 R)
• M2: 777,610 km (0.102 R)
• M3: 1,333,515 km (0.081 R)
• M4: 1,781,112 km (0.075 R)
• M5: 2,132,966 km (0.068 R)
• M6: 2,447,272 km (0.101 R)
• M7: 3,406,194 km (0.053 R)
• M8: 4,245,438 km (0.101 R)
• M9: 4,746,292 km (0.102 R)
• M10: 5,815,767 km (0.1 R)
• M11: 6,171,062 km (0.081 R)
• M12: 6,621,950 km (0.107 R)
• M13: 7,266,866 km (0.102 R)
• M14: 9,488,245 km (0.11 R)
• M15: 10,491,747 km (0.088 R)
• M16: 10,753,394 km (0.081 R)
• M17: 13,005,740 km (0.093 R)
• M18: 13,881,186 km (0.049 R)
• M19: 14,333,271 km (0.097 R)
• M20: 14,702,180 km (0.096 R)
• M21: 15,846,603 km (0.055 R)
• M22: 16,895,883 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.1

Radius: 13.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.27 AU - 3.57 AU

Year: 3444 Days

Day: 13.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,691,671 km

• M1: 172,935 km (0.107 R)
• M2: 616,792 km (0.111 R)
• M3: 1,490,144 km (0.07 R)
• M4: 2,856,272 km (0.082 R)
• M5: 3,686,840 km (0.027 R)
• M6: 7,893,083 km (0.116 R)
• M7: 8,634,490 km (0.101 R)
• M8: 13,639,885 km (0.095 R)
• M9: 14,471,649 km (0.114 R)
• M10: 15,933,071 km (0.118 R)
• M11: 18,196,337 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.8

Radius: 14.2

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.93 AU - 5.83 AU

Year: 8614 Days

Day: 7.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,691,671 km

• M1: 176,525 km (0.119 R)
• M2: 642,373 km (0.099 R)
• M3: 1,139,337 km (0.102 R)
• M4: 1,640,191 km (0.107 R)
• M5: 2,274,336 km (0.104 R)
• M6: 2,896,664 km (0.106 R)
• M7: 3,479,198 km (0.116 R)
• M8: 4,236,911 km (0.11 R)
• M9: 4,936,730 km (0.12 R)
• M10: 5,622,486 km (0.054 R)
• M11: 6,941,192 km (0.119 R)
• M12: 7,954,418 km (0.054 R)
• M13: 8,696,423 km (0.066 R)
• M14: 10,918,550 km (0.102 R)
• M15: 14,725,666 km (0.101 R)
• M16: 15,725,429 km (0.076 R)
• M17: 19,618,115 km (0.101 R)
• M18: 21,563,336 km (0.041 R)
• M19: 23,555,082 km (0.045 R)
• M20: 24,031,701 km (0.098 R)
• M21: 30,451,544 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.2

Radius: 3.9

Gravity: 38.74 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.45 AU - 7.81 AU

Year: 13142 Days

Day: 16.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 54,691,671 km

• M1: 49,068 km (0.049 R)
• M2: 177,124 km (0.083 R)
• M3: 321,785 km (0.09 R)
• M4: 561,890 km (0.049 R)
• M5: 861,983 km (0.119 R)
• M6: 1,076,955 km (0.089 R)
• M7: 1,222,514 km (0.104 R)
• M8: 1,367,474 km (0.067 R)
• M9: 1,509,143 km (0.093 R)
• M10: 1,872,816 km (0.08 R)
• M11: 2,139,848 km (0.067 R)
• M12: 2,683,935 km (0.059 R)
• M13: 3,215,606 km (0.078 R)
• M14: 4,484,645 km (0.097 R)
• M15: 5,027,835 km (0.106 R)
• M16: 5,867,827 km (0.119 R)
• M17: 8,557,597 km (0.08 R)
• M18: 9,139,832 km (0.093 R)
• M19: 10,545,453 km (0.094 R)
• M20: 11,558,829 km (0.095 R)
• M21: 12,329,857 km (0.091 R)
• M22: 12,883,369 km (0.037 R)
• M23: 13,389,159 km (0.034 R)
• M24: 15,333,632 km (0.094 R)
• M25: 17,921,376 km (0.117 R)
• M26: 20,359,073 km (0.031 R)
• M27: 22,552,178 km (0.116 R)
• M28: 22,734,239 km (0.095 R)
• M29: 25,979,465 km (0.087 R)
• M30: 27,297,871 km (0.102 R)
• M31: 27,608,287 km (0.109 R)
• M32: 32,783,925 km (0.117 R)
• M33: 36,529,855 km (0.067 R)
• M34: 37,668,445 km (0.062 R)
• M35: 40,820,173 km (0.091 R)
• M36: 41,090,346 km (0.092 R)
• M37: 43,155,844 km (0.062 R)
• M38: 46,308,918 km (0.1 R)
• M39: 52,908,279 km (0.055 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 17,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit