🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.4

Radius: 8.1

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.72 AU - 0.96 AU

Year: 497 Days

Day: 6.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,388,630 km

• M1: 100,679 km (0.077 R)
• M2: 473,776 km (0.113 R)
• M3: 942,018 km (0.081 R)
• M4: 1,227,451 km (0.068 R)
• M5: 1,571,077 km (0.114 R)
• M6: 2,053,829 km (0.063 R)
• M7: 2,577,871 km (0.109 R)
• M8: 3,198,702 km (0.087 R)
• M9: 3,499,992 km (0.059 R)
• M10: 4,073,251 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.8

Radius: 12.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.75 AU - 0.97 AU

Year: 515 Days

Day: 10.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,388,630 km

• M1: 160,519 km (0.099 R)
• M2: 651,050 km (0.081 R)
• M3: 1,171,950 km (0.101 R)
• M4: 1,852,470 km (0.071 R)
• M5: 2,736,743 km (0.036 R)
• M6: 3,162,499 km (0.082 R)
• M7: 3,972,123 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.4

Radius: 14.1

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.3 AU - 1.38 AU

Year: 1002 Days

Day: 10 Hours

Environment

Temp: -182 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,388,630 km

• M1: 175,329 km (0.118 R)
• M2: 666,309 km (0.111 R)
• M3: 1,259,016 km (0.108 R)
• M4: 2,064,451 km (0.119 R)
• M5: 2,752,601 km (0.092 R)
• M6: 3,873,089 km (0.059 R)
• M7: 4,378,131 km (0.09 R)
• M8: 4,965,453 km (0.088 R)
• M9: 5,460,621 km (0.1 R)
• M10: 5,988,852 km (0.087 R)
• M11: 6,458,738 km (0.025 R)
• M12: 7,148,385 km (0.089 R)
• M13: 7,626,499 km (0.069 R)
• M14: 8,126,007 km (0.095 R)
• M15: 8,731,729 km (0.067 R)
• M16: 9,546,139 km (0.033 R)
• M17: 10,283,956 km (0.111 R)
• M18: 11,259,484 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915

Radius: 9.3

Gravity: 10.58 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.21 AU - 1.89 AU

Year: 1246 Days

Day: 9.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,388,630 km

• M1: 115,789 km (0.057 R)
• M2: 454,179 km (0.11 R)
• M3: 883,974 km (0.099 R)
• M4: 1,281,455 km (0.098 R)
• M5: 1,689,259 km (0.061 R)
• M6: 2,047,995 km (0.118 R)
• M7: 2,359,308 km (0.038 R)
• M8: 2,907,135 km (0.114 R)
• M9: 4,041,686 km (0.115 R)
• M10: 4,385,162 km (0.116 R)
• M11: 5,193,589 km (0.079 R)
• M12: 5,600,495 km (0.078 R)
• M13: 6,074,870 km (0.085 R)
• M14: 6,849,189 km (0.057 R)
• M15: 8,302,981 km (0.073 R)
• M16: 8,950,590 km (0.06 R)
• M17: 9,317,853 km (0.082 R)
• M18: 9,663,274 km (0.111 R)
• M19: 11,061,715 km (0.111 R)
• M20: 11,664,445 km (0.094 R)
• M21: 13,051,816 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.5

Radius: 13

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.46 AU - 4.74 AU

Year: 5360 Days

Day: 7.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,388,630 km

• M1: 162,164 km (0.055 R)
• M2: 621,878 km (0.109 R)
• M3: 1,734,737 km (0.103 R)
• M4: 2,281,368 km (0.105 R)
• M5: 3,161,751 km (0.086 R)
• M6: 3,568,358 km (0.107 R)
• M7: 4,462,504 km (0.056 R)
• M8: 5,061,943 km (0.096 R)
• M9: 5,838,954 km (0.073 R)
• M10: 7,188,327 km (0.066 R)
• M11: 7,706,834 km (0.117 R)
• M12: 9,721,318 km (0.092 R)
• M13: 12,907,005 km (0.101 R)
• M14: 15,362,056 km (0.111 R)
• M15: 21,405,062 km (0.084 R)
• M16: 22,953,250 km (0.088 R)
• M17: 26,795,522 km (0.115 R)
• M18: 27,864,249 km (0.109 R)
• M19: 29,146,901 km (0.1 R)
• M20: 33,332,650 km (0.07 R)
• M21: 34,360,686 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.9

Radius: 12.5

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.56 AU - 5.36 AU

Year: 6082 Days

Day: 5.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,388,630 km

• M1: 155,432 km (0.091 R)
• M2: 545,883 km (0.111 R)
• M3: 1,105,827 km (0.115 R)
• M4: 1,656,048 km (0.086 R)
• M5: 3,896,277 km (0.107 R)
• M6: 4,485,991 km (0.092 R)
• M7: 5,691,601 km (0.095 R)
• M8: 7,067,303 km (0.077 R)
• M9: 8,100,725 km (0.086 R)
• M10: 11,413,121 km (0.106 R)
• M11: 12,364,713 km (0.071 R)
• M12: 13,314,360 km (0.068 R)
• M13: 14,255,181 km (0.087 R)
• M14: 16,084,464 km (0.103 R)
• M15: 16,580,979 km (0.06 R)
• M16: 17,280,200 km (0.115 R)
• M17: 17,801,099 km (0.119 R)
• M18: 18,737,881 km (0.081 R)
• M19: 20,636,877 km (0.107 R)
• M20: 23,364,345 km (0.11 R)
• M21: 24,732,418 km (0.084 R)
• M22: 25,144,859 km (0.062 R)
• M23: 26,840,401 km (0.071 R)
• M24: 27,893,570 km (0.087 R)
• M25: 32,976,756 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.4

Radius: 14.5

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.48 AU - 5.44 AU

Year: 7132 Days

Day: 13.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,388,630 km

• M1: 191,934 km (0.115 R)
• M2: 1,901,239 km (0.119 R)
• M3: 4,321,134 km (0.084 R)
• M4: 5,107,870 km (0.088 R)
• M5: 6,189,911 km (0.099 R)
• M6: 10,121,642 km (0.097 R)
• M7: 10,653,164 km (0.03 R)
• M8: 11,772,604 km (0.114 R)
• M9: 13,654,994 km (0.108 R)
• M10: 15,794,992 km (0.094 R)
• M11: 16,511,566 km (0.097 R)
• M12: 21,511,725 km (0.119 R)
• M13: 21,989,241 km (0.089 R)
• M14: 24,055,786 km (0.111 R)
• M15: 24,830,554 km (0.093 R)
• M16: 30,627,621 km (0.069 R)
• M17: 31,334,172 km (0.036 R)
• M18: 33,095,238 km (0.056 R)
• M19: 39,127,024 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 166.3

Radius: 7.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 6.71 AU - 6.75 AU

Year: 11273 Days

Day: 21.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,388,630 km

• M1: 89,908 km (0.072 R)
• M2: 467,344 km (0.117 R)
• M3: 697,425 km (0.104 R)
• M4: 1,765,704 km (0.107 R)
• M5: 2,398,054 km (0.117 R)
• M6: 2,675,558 km (0.117 R)
• M7: 3,889,545 km (0.033 R)
• M8: 4,710,089 km (0.104 R)
• M9: 5,404,821 km (0.117 R)
• M10: 5,701,175 km (0.111 R)
• M11: 6,756,887 km (0.106 R)
• M12: 7,031,250 km (0.069 R)
• M13: 7,787,317 km (0.05 R)
• M14: 10,245,360 km (0.08 R)
• M15: 15,241,031 km (0.108 R)
• M16: 15,535,290 km (0.044 R)
• M17: 16,135,477 km (0.104 R)
• M18: 16,441,255 km (0.032 R)
• M19: 17,703,412 km (0.094 R)
• M20: 22,175,640 km (0.102 R)
• M21: 24,832,648 km (0.082 R)
• M22: 25,487,288 km (0.047 R)
• M23: 27,002,416 km (0.068 R)
• M24: 28,221,489 km (0.103 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 438 - 16,377 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit