🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.82 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 10.1

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.61 AU - 1.67 AU

Year: 1401 Days

Day: 6.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,008,323 km

• M1: 127,607 km (0.069 R)
• M2: 667,655 km (0.092 R)
• M3: 1,021,753 km (0.091 R)
• M4: 1,438,683 km (0.096 R)
• M5: 1,778,419 km (0.105 R)
• M6: 2,105,740 km (0.067 R)
• M7: 2,558,872 km (0.087 R)
• M8: 3,187,781 km (0.093 R)
• M9: 3,931,133 km (0.102 R)
• M10: 4,869,560 km (0.043 R)
• M11: 5,912,407 km (0.069 R)
• M12: 7,097,821 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.2

Radius: 12.9

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.54 AU - 1.9 AU

Year: 1504 Days

Day: 12.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,008,323 km

• M1: 162,613 km (0.062 R)
• M2: 649,105 km (0.106 R)
• M3: 1,060,799 km (0.053 R)
• M4: 2,332,530 km (0.085 R)
• M5: 3,481,591 km (0.104 R)
• M6: 3,944,148 km (0.107 R)
• M7: 4,897,236 km (0.063 R)
• M8: 5,852,269 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.8

Radius: 14.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.39 AU - 2.07 AU

Year: 1517 Days

Day: 12.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,008,323 km

• M1: 182,958 km (0.067 R)
• M2: 710,590 km (0.069 R)
• M3: 1,224,010 km (0.06 R)
• M4: 1,830,031 km (0.109 R)
• M5: 2,720,886 km (0.03 R)
• M6: 3,182,545 km (0.12 R)
• M7: 4,284,184 km (0.11 R)
• M8: 5,382,382 km (0.043 R)
• M9: 5,879,795 km (0.114 R)
• M10: 6,920,098 km (0.061 R)
• M11: 7,611,540 km (0.117 R)
• M12: 8,790,820 km (0.107 R)
• M13: 9,395,195 km (0.094 R)
• M14: 11,309,749 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.2

Radius: 10.4

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.28 AU - 2.92 AU

Year: 2796 Days

Day: 14.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,008,323 km

• M1: 129,402 km (0.113 R)
• M2: 457,470 km (0.105 R)
• M3: 783,444 km (0.064 R)
• M4: 1,134,849 km (0.1 R)
• M5: 1,966,464 km (0.064 R)
• M6: 2,607,640 km (0.108 R)
• M7: 3,033,246 km (0.083 R)
• M8: 4,284,333 km (0.094 R)
• M9: 5,198,227 km (0.101 R)
• M10: 5,530,334 km (0.04 R)
• M11: 6,316,471 km (0.072 R)
• M12: 7,003,275 km (0.088 R)
• M13: 7,588,053 km (0.07 R)
• M14: 8,079,033 km (0.102 R)
• M15: 8,558,345 km (0.089 R)
• M16: 9,574,264 km (0.12 R)
• M17: 10,074,968 km (0.078 R)
• M18: 11,443,340 km (0.056 R)
• M19: 13,543,993 km (0.084 R)
• M20: 14,313,375 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.4

Radius: 9.8

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.4 AU - 6.24 AU

Year: 8183 Days

Day: 11.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,008,323 km

• M1: 121,922 km (0.062 R)
• M2: 530,324 km (0.081 R)
• M3: 1,131,708 km (0.11 R)
• M4: 1,754,484 km (0.083 R)
• M5: 2,254,590 km (0.109 R)
• M6: 2,904,592 km (0.034 R)
• M7: 3,263,627 km (0.075 R)
• M8: 5,263,003 km (0.114 R)
• M9: 5,986,458 km (0.119 R)
• M10: 7,087,648 km (0.076 R)
• M11: 8,840,785 km (0.057 R)
• M12: 10,129,421 km (0.105 R)
• M13: 11,055,582 km (0.111 R)
• M14: 12,497,257 km (0.097 R)
• M15: 12,810,514 km (0.083 R)
• M16: 17,964,311 km (0.108 R)
• M17: 19,667,931 km (0.067 R)
• M18: 20,306,864 km (0.088 R)
• M19: 25,007,378 km (0.095 R)
• M20: 27,830,141 km (0.108 R)
• M21: 30,198,574 km (0.05 R)
• M22: 30,953,744 km (0.039 R)
• M23: 32,305,211 km (0.04 R)
• M24: 32,896,273 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 145.3

Radius: 5.5

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 6.46 AU - 6.92 AU

Year: 11539 Days

Day: 17 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,008,323 km

• M1: 68,366 km (0.037 R)
• M2: 273,615 km (0.09 R)
• M3: 639,232 km (0.056 R)
• M4: 1,077,553 km (0.088 R)
• M5: 1,323,642 km (0.114 R)
• M6: 1,776,774 km (0.117 R)
• M7: 2,199,687 km (0.099 R)
• M8: 2,460,436 km (0.106 R)
• M9: 2,705,178 km (0.036 R)
• M10: 3,043,868 km (0.118 R)
• M11: 3,990,972 km (0.055 R)
• M12: 4,740,158 km (0.104 R)
• M13: 9,464,309 km (0.099 R)
• M14: 10,066,590 km (0.053 R)
• M15: 11,442,741 km (0.064 R)
• M16: 12,681,711 km (0.067 R)
• M17: 13,254,072 km (0.062 R)
• M18: 17,370,557 km (0.091 R)
• M19: 23,793,841 km (0.119 R)
• M20: 27,314,477 km (0.11 R)
• M21: 29,966,548 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.4

Radius: 3.1

Gravity: 22.41 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.67 AU - 9.49 AU

Year: 18246 Days

Day: 18.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,008,323 km

• M1: 38,895 km (0.103 R)
• M2: 382,821 km (0.118 R)
• M3: 535,411 km (0.111 R)
• M4: 645,814 km (0.12 R)
• M5: 1,983,817 km (0.089 R)
• M6: 4,834,106 km (0.037 R)
• M7: 5,759,967 km (0.041 R)
• M8: 7,035,438 km (0.032 R)
• M9: 7,360,814 km (0.115 R)
• M10: 8,218,159 km (0.073 R)
• M11: 9,332,065 km (0.116 R)
• M12: 11,911,431 km (0.05 R)
• M13: 12,083,170 km (0.089 R)
• M14: 14,534,331 km (0.117 R)
• M15: 14,862,249 km (0.102 R)
• M16: 17,151,545 km (0.104 R)
• M17: 17,517,761 km (0.093 R)
• M18: 19,034,683 km (0.103 R)
• M19: 19,506,366 km (0.09 R)
• M20: 19,985,677 km (0.112 R)
• M21: 22,413,651 km (0.091 R)
• M22: 25,407,403 km (0.102 R)
• M23: 27,246,410 km (0.086 R)
• M24: 27,644,639 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.6

Radius: 4.1

Gravity: 24.66 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 7.43 AU - 11.47 AU

Year: 19372 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,008,323 km

• M1: 51,013 km (0.096 R)
• M2: 376,987 km (0.058 R)
• M3: 1,462,918 km (0.086 R)
• M4: 1,837,211 km (0.11 R)
• M5: 2,334,176 km (0.061 R)
• M6: 7,968,031 km (0.083 R)
• M7: 12,398,372 km (0.055 R)
• M8: 15,868,295 km (0.089 R)
• M9: 21,460,862 km (0.064 R)
• M10: 21,830,967 km (0.048 R)
• M11: 22,679,486 km (0.111 R)
• M12: 25,874,298 km (0.071 R)
• M13: 33,015,801 km (0.104 R)
• M14: 43,101,091 km (0.028 R)
• M15: 46,561,589 km (0.083 R)
• M16: 49,556,239 km (0.112 R)
• M17: 56,275,428 km (0.071 R)
• M18: 58,224,239 km (0.103 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 12,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit