🌌 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: 702.9

Radius: 14.8

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.63 AU - 0.73 AU

Year: 362 Days

Day: 6.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,619,134 km

• M1: 184,005 km (0.111 R)
• M2: 759,508 km (0.034 R)
• M3: 1,238,371 km (0.098 R)
• M4: 1,768,696 km (0.053 R)
• M5: 2,958,896 km (0.118 R)
• M6: 4,007,278 km (0.094 R)
• M7: 4,702,459 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125

Radius: 10

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.55 AU - 0.87 AU

Year: 386 Days

Day: 11.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,619,134 km

• M1: 126,111 km (0.097 R)
• M2: 636,988 km (0.052 R)
• M3: 1,001,408 km (0.071 R)
• M4: 1,387,670 km (0.067 R)
• M5: 1,744,760 km (0.111 R)
• M6: 2,609,436 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.2

Radius: 13.7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.73 AU - 0.77 AU

Year: 419 Days

Day: 6.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,619,134 km

• M1: 170,392 km (0.067 R)
• M2: 608,714 km (0.077 R)
• M3: 1,045,091 km (0.114 R)
• M4: 1,632,113 km (0.034 R)
• M5: 2,234,992 km (0.115 R)
• M6: 2,940,945 km (0.117 R)
• M7: 3,564,768 km (0.049 R)
• M8: 4,234,069 km (0.09 R)
• M9: 4,725,797 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.9

Radius: 9.8

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.06 AU - 1.44 AU

Year: 902 Days

Day: 7.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 66.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,619,134 km

• M1: 122,670 km (0.058 R)
• M2: 702,512 km (0.116 R)
• M3: 1,082,939 km (0.074 R)
• M4: 1,701,377 km (0.084 R)
• M5: 2,563,060 km (0.109 R)
• M6: 3,085,456 km (0.072 R)
• M7: 3,780,787 km (0.077 R)
• M8: 4,213,723 km (0.066 R)
• M9: 5,087,973 km (0.096 R)
• M10: 5,500,564 km (0.053 R)
• M11: 8,057,641 km (0.1 R)
• M12: 8,724,249 km (0.081 R)
• M13: 9,152,547 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.5

Radius: 8.7

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.9 AU - 4.12 AU

Year: 5185 Days

Day: 9.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,619,134 km

• M1: 108,159 km (0.105 R)
• M2: 417,827 km (0.118 R)
• M3: 936,931 km (0.087 R)
• M4: 1,404,275 km (0.085 R)
• M5: 1,965,566 km (0.065 R)
• M6: 3,193,167 km (0.045 R)
• M7: 3,915,126 km (0.11 R)
• M8: 4,470,284 km (0.12 R)
• M9: 5,911,210 km (0.052 R)
• M10: 8,283,085 km (0.07 R)
• M11: 8,770,474 km (0.109 R)
• M12: 10,135,854 km (0.107 R)
• M13: 11,046,905 km (0.08 R)
• M14: 11,453,662 km (0.084 R)
• M15: 14,107,827 km (0.107 R)
• M16: 15,353,529 km (0.095 R)
• M17: 17,508,935 km (0.117 R)
• M18: 18,062,297 km (0.094 R)
• M19: 19,010,449 km (0.119 R)
• M20: 24,481,841 km (0.119 R)
• M21: 24,941,705 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.1

Radius: 8.5

Gravity: 11.82 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.07 AU - 6.39 AU

Year: 8856 Days

Day: 9.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 36,619,134 km

• M1: 105,766 km (0.099 R)
• M2: 431,291 km (0.116 R)
• M3: 706,252 km (0.043 R)
• M4: 1,374,655 km (0.066 R)
• M5: 1,750,445 km (0.098 R)
• M6: 2,710,564 km (0.112 R)
• M7: 3,053,741 km (0.091 R)
• M8: 4,317,245 km (0.07 R)
• M9: 7,093,482 km (0.108 R)
• M10: 9,855,508 km (0.067 R)
• M11: 10,881,001 km (0.054 R)
• M12: 11,640,061 km (0.081 R)
• M13: 13,815,812 km (0.058 R)
• M14: 14,705,620 km (0.104 R)
• M15: 15,700,745 km (0.11 R)
• M16: 17,457,922 km (0.116 R)
• M17: 20,698,960 km (0.086 R)
• M18: 21,027,178 km (0.115 R)
• M19: 22,633,709 km (0.032 R)
• M20: 23,069,637 km (0.033 R)
• M21: 24,229,619 km (0.111 R)
• M22: 30,617,747 km (0.057 R)
• M23: 31,366,186 km (0.085 R)
• M24: 32,899,713 km (0.041 R)
• M25: 40,678,653 km (0.108 R)
• M26: 41,064,765 km (0.057 R)
• M27: 41,844,020 km (0.11 R)
• M28: 42,500,905 km (0.089 R)
• M29: 44,649,429 km (0.078 R)
• M30: 46,167,848 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 654.2

Radius: 5.6

Gravity: 20.86 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.12 AU - 6.98 AU

Year: 10824 Days

Day: 20.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,619,134 km

• M1: 71,807 km (0.1 R)
• M2: 301,141 km (0.09 R)
• M3: 503,995 km (0.074 R)
• M4: 923,019 km (0.102 R)
• M5: 1,345,334 km (0.114 R)
• M6: 1,697,936 km (0.047 R)
• M7: 2,607,192 km (0.108 R)
• M8: 4,781,298 km (0.118 R)
• M9: 5,098,146 km (0.057 R)
• M10: 5,951,751 km (0.118 R)
• M11: 7,894,280 km (0.045 R)
• M12: 8,796,355 km (0.081 R)
• M13: 10,120,446 km (0.117 R)
• M14: 16,041,529 km (0.113 R)
• M15: 17,555,909 km (0.038 R)
• M16: 24,107,248 km (0.12 R)
• M17: 24,384,004 km (0.107 R)
• M18: 24,662,705 km (0.095 R)
• M19: 26,575,763 km (0.113 R)
• M20: 27,467,964 km (0.106 R)
• M21: 29,838,791 km (0.06 R)
• M22: 30,157,734 km (0.099 R)
• M23: 39,270,787 km (0.094 R)
• M24: 40,557,479 km (0.086 R)
• M25: 41,474,514 km (0.092 R)
• M26: 42,405,461 km (0.043 R)
• M27: 43,486,306 km (0.12 R)
• M28: 47,413,998 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.2

Radius: 8

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 9.98 AU - 10.92 AU

Year: 21812 Days

Day: 19.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,619,134 km

• M1: 112,049 km (0.078 R)
• M2: 418,724 km (0.104 R)
• M3: 1,262,756 km (0.059 R)
• M4: 1,651,860 km (0.114 R)
• M5: 2,401,794 km (0.112 R)
• M6: 3,043,718 km (0.119 R)
• M7: 4,113,044 km (0.102 R)
• M8: 4,609,858 km (0.098 R)
• M9: 6,142,339 km (0.104 R)
• M10: 6,581,858 km (0.039 R)
• M11: 8,511,670 km (0.064 R)
• M12: 10,128,673 km (0.093 R)
• M13: 13,060,193 km (0.118 R)
• M14: 13,787,239 km (0.072 R)
• M15: 16,385,156 km (0.108 R)
• M16: 18,380,043 km (0.096 R)
• M17: 21,667,606 km (0.052 R)
• M18: 24,313,992 km (0.064 R)
• M19: 28,075,780 km (0.03 R)
• M20: 33,533,111 km (0.094 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 11,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit