🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.1

Radius: 13.3

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.68 AU - 0.82 AU

Year: 426 Days

Day: 9.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,761,029 km

• M1: 165,455 km (0.08 R)
• M2: 601,533 km (0.09 R)
• M3: 1,090,120 km (0.098 R)
• M4: 2,054,727 km (0.093 R)
• M5: 3,654,377 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.6

Radius: 11.6

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.68 AU - 0.98 AU

Year: 496 Days

Day: 7 Hours

Environment

Temp: -146 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,761,029 km

• M1: 144,512 km (0.086 R)
• M2: 530,923 km (0.116 R)
• M3: 965,953 km (0.119 R)
• M4: 1,608,327 km (0.113 R)
• M5: 2,092,126 km (0.099 R)
• M6: 2,787,756 km (0.089 R)
• M7: 3,155,318 km (0.047 R)
• M8: 3,555,493 km (0.087 R)
• M9: 3,948,785 km (0.116 R)
• M10: 4,761,401 km (0.052 R)
• M11: 5,274,073 km (0.11 R)
• M12: 5,876,653 km (0.079 R)
• M13: 6,334,722 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.6

Radius: 8.1

Gravity: 13.6 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.78 AU - 1.2 AU

Year: 646 Days

Day: 10.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,761,029 km

• M1: 100,679 km (0.102 R)
• M2: 486,193 km (0.119 R)
• M3: 777,011 km (0.079 R)
• M4: 1,074,711 km (0.114 R)
• M5: 1,456,634 km (0.111 R)
• M6: 1,873,115 km (0.067 R)
• M7: 2,163,784 km (0.102 R)
• M8: 2,778,182 km (0.112 R)
• M9: 3,132,729 km (0.086 R)
• M10: 4,084,171 km (0.08 R)
• M11: 4,381,722 km (0.107 R)
• M12: 4,710,388 km (0.114 R)
• M13: 5,144,521 km (0.047 R)
• M14: 5,661,980 km (0.058 R)
• M15: 5,992,891 km (0.056 R)
• M16: 6,357,311 km (0.099 R)
• M17: 7,516,695 km (0.029 R)
• M18: 7,821,425 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.3

Radius: 14.7

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.81 AU - 1.31 AU

Year: 716 Days

Day: 9.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,761,029 km

• M1: 182,809 km (0.1 R)
• M2: 668,553 km (0.101 R)
• M3: 1,505,553 km (0.104 R)
• M4: 2,028,846 km (0.08 R)
• M5: 2,729,862 km (0.039 R)
• M6: 3,390,935 km (0.053 R)
• M7: 4,112,745 km (0.109 R)
• M8: 4,969,192 km (0.099 R)
• M9: 5,512,831 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.2

Radius: 13.7

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.51 AU - 1.91 AU

Year: 1467 Days

Day: 10.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,761,029 km

• M1: 173,384 km (0.095 R)
• M2: 651,050 km (0.049 R)
• M3: 1,208,601 km (0.08 R)
• M4: 1,753,287 km (0.12 R)
• M5: 2,692,911 km (0.116 R)
• M6: 3,246,872 km (0.089 R)
• M7: 3,674,423 km (0.036 R)
• M8: 4,322,331 km (0.105 R)
• M9: 4,822,287 km (0.101 R)
• M10: 5,425,616 km (0.097 R)
• M11: 6,510,649 km (0.088 R)
• M12: 7,790,908 km (0.116 R)
• M13: 8,833,904 km (0.111 R)
• M14: 10,066,890 km (0.119 R)
• M15: 10,742,174 km (0.099 R)
• M16: 11,304,064 km (0.095 R)
• M17: 12,071,202 km (0.041 R)
• M18: 12,678,719 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 13.9

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.75 AU - 1.93 AU

Year: 1637 Days

Day: 6 Hours

Environment

Temp: -181 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,761,029 km

• M1: 172,935 km (0.106 R)
• M2: 1,358,797 km (0.069 R)
• M3: 2,110,228 km (0.077 R)
• M4: 3,070,646 km (0.091 R)
• M5: 4,166,899 km (0.093 R)
• M6: 5,204,211 km (0.086 R)
• M7: 7,349,295 km (0.06 R)
• M8: 8,244,339 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.5

Radius: 9.5

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.32 AU - 2.34 AU

Year: 2333 Days

Day: 10.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,761,029 km

• M1: 118,182 km (0.08 R)
• M2: 437,873 km (0.101 R)
• M3: 797,656 km (0.109 R)
• M4: 1,113,756 km (0.057 R)
• M5: 1,566,888 km (0.111 R)
• M6: 2,313,830 km (0.115 R)
• M7: 3,212,016 km (0.1 R)
• M8: 3,876,829 km (0.065 R)
• M9: 4,200,559 km (0.094 R)
• M10: 4,608,512 km (0.096 R)
• M11: 5,042,795 km (0.088 R)
• M12: 5,429,505 km (0.066 R)
• M13: 6,483,721 km (0.075 R)
• M14: 7,544,221 km (0.098 R)
• M15: 9,203,710 km (0.082 R)
• M16: 9,709,051 km (0.062 R)
• M17: 10,270,941 km (0.107 R)
• M18: 10,618,307 km (0.111 R)
• M19: 12,172,629 km (0.098 R)
• M20: 13,733,384 km (0.086 R)
• M21: 14,927,025 km (0.113 R)
• M22: 16,396,675 km (0.112 R)
• M23: 17,794,368 km (0.074 R)
• M24: 19,680,647 km (0.032 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.8

Radius: 11.5

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.18 AU - 3.12 AU

Year: 2830 Days

Day: 13.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 69.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,761,029 km

• M1: 143,016 km (0.09 R)
• M2: 927,058 km (0.038 R)
• M3: 1,717,084 km (0.119 R)
• M4: 4,350,456 km (0.08 R)
• M5: 6,473,399 km (0.105 R)
• M6: 11,361,061 km (0.083 R)
• M7: 12,370,996 km (0.051 R)
• M8: 12,921,067 km (0.082 R)
• M9: 13,776,917 km (0.066 R)
• M10: 16,352,842 km (0.098 R)
• M11: 17,927,809 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.3

Radius: 4.5

Gravity: 43.57 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.63 AU - 9.11 AU

Year: 14483 Days

Day: 23.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,761,029 km

• M1: 152,141 km (0.04 R)
• M2: 324,029 km (0.096 R)
• M3: 471,532 km (0.07 R)
• M4: 737,518 km (0.106 R)
• M5: 2,241,724 km (0.038 R)
• M6: 2,891,428 km (0.112 R)
• M7: 3,090,991 km (0.046 R)
• M8: 6,215,941 km (0.052 R)
• M9: 8,749,231 km (0.114 R)
• M10: 9,489,442 km (0.06 R)
• M11: 9,763,655 km (0.109 R)
• M12: 12,936,775 km (0.049 R)
• M13: 19,584,156 km (0.092 R)
• M14: 22,256,274 km (0.098 R)
• M15: 22,642,835 km (0.103 R)
• M16: 28,084,756 km (0.094 R)
• M17: 28,649,787 km (0.08 R)
• M18: 34,465,704 km (0.098 R)
• M19: 37,922,013 km (0.108 R)
• M20: 44,896,565 km (0.069 R)
• M21: 45,824,221 km (0.068 R)
• M22: 46,292,911 km (0.114 R)
• M23: 46,922,569 km (0.114 R)
• M24: 59,072,310 km (0.076 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 18,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit