🌌 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: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.3

Radius: 13.6

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.76 AU - 0.76 AU

Year: 428 Days

Day: 14.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 65,360,233 km

• M1: 169,195 km (0.049 R)
• M2: 933,640 km (0.096 R)
• M3: 1,460,524 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.7

Radius: 11.5

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.04 AU - 1.24 AU

Year: 786 Days

Day: 9.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,360,233 km

• M1: 143,165 km (0.109 R)
• M2: 527,482 km (0.101 R)
• M3: 924,814 km (0.041 R)
• M4: 1,323,492 km (0.114 R)
• M5: 1,736,382 km (0.087 R)
• M6: 2,387,432 km (0.083 R)
• M7: 4,263,539 km (0.028 R)
• M8: 5,231,288 km (0.048 R)
• M9: 6,788,901 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.8

Radius: 8.7

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.29 AU - 1.53 AU

Year: 1081 Days

Day: 8.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,360,233 km

• M1: 108,159 km (0.089 R)
• M2: 575,353 km (0.094 R)
• M3: 1,205,759 km (0.094 R)
• M4: 2,611,680 km (0.03 R)
• M5: 3,034,443 km (0.113 R)
• M6: 3,345,308 km (0.104 R)
• M7: 4,408,200 km (0.049 R)
• M8: 6,030,290 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.2

Radius: 13.3

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.58 AU - 2.86 AU

Year: 2896 Days

Day: 5.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,360,233 km

• M1: 165,455 km (0.099 R)
• M2: 948,899 km (0.114 R)
• M3: 1,615,358 km (0.109 R)
• M4: 2,074,025 km (0.111 R)
• M5: 2,660,149 km (0.051 R)
• M6: 3,262,430 km (0.116 R)
• M7: 3,679,808 km (0.1 R)
• M8: 5,346,030 km (0.047 R)
• M9: 6,557,024 km (0.095 R)
• M10: 7,690,228 km (0.102 R)
• M11: 8,406,952 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.4

Radius: 8.3

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.44 AU - 4.9 AU

Year: 5498 Days

Day: 11.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,360,233 km

• M1: 104,719 km (0.066 R)
• M2: 448,644 km (0.119 R)
• M3: 1,395,599 km (0.101 R)
• M4: 1,965,118 km (0.043 R)
• M5: 2,866,146 km (0.079 R)
• M6: 3,303,719 km (0.063 R)
• M7: 3,605,009 km (0.082 R)
• M8: 4,620,779 km (0.116 R)
• M9: 6,485,666 km (0.112 R)
• M10: 6,890,777 km (0.101 R)
• M11: 8,967,644 km (0.032 R)
• M12: 11,971,570 km (0.12 R)
• M13: 13,864,431 km (0.112 R)
• M14: 15,527,810 km (0.106 R)
• M15: 16,749,875 km (0.098 R)
• M16: 17,513,124 km (0.066 R)
• M17: 18,836,616 km (0.117 R)
• M18: 21,017,753 km (0.11 R)
• M19: 21,458,468 km (0.105 R)
• M20: 21,980,565 km (0.069 R)
• M21: 22,972,548 km (0.112 R)
• M22: 25,045,526 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.7

Radius: 12.4

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.41 AU - 5.65 AU

Year: 8397 Days

Day: 11.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,360,233 km

• M1: 155,432 km (0.085 R)
• M2: 643,271 km (0.096 R)
• M3: 1,446,462 km (0.056 R)
• M4: 2,405,983 km (0.114 R)
• M5: 2,864,350 km (0.082 R)
• M6: 7,690,827 km (0.058 R)
• M7: 8,117,330 km (0.073 R)
• M8: 11,671,925 km (0.048 R)
• M9: 15,809,204 km (0.116 R)
• M10: 16,854,145 km (0.092 R)
• M11: 17,502,801 km (0.092 R)
• M12: 19,865,400 km (0.108 R)
• M13: 20,346,208 km (0.09 R)
• M14: 21,247,685 km (0.061 R)
• M15: 24,936,469 km (0.103 R)
• M16: 32,328,399 km (0.039 R)
• M17: 34,813,818 km (0.098 R)
• M18: 36,341,063 km (0.097 R)
• M19: 38,404,915 km (0.111 R)
• M20: 47,873,263 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.5

Radius: 7.8

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 5.55 AU - 8.01 AU

Year: 11399 Days

Day: 20.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,360,233 km

• M1: 99,931 km (0.087 R)
• M2: 393,293 km (0.096 R)
• M3: 866,022 km (0.034 R)
• M4: 1,197,381 km (0.071 R)
• M5: 1,455,886 km (0.104 R)
• M6: 1,737,579 km (0.088 R)
• M7: 2,578,020 km (0.095 R)
• M8: 3,078,126 km (0.07 R)
• M9: 3,860,373 km (0.107 R)
• M10: 4,324,874 km (0.076 R)
• M11: 5,714,639 km (0.055 R)
• M12: 8,302,233 km (0.093 R)
• M13: 8,900,325 km (0.116 R)
• M14: 9,757,521 km (0.1 R)
• M15: 10,182,379 km (0.115 R)
• M16: 11,687,782 km (0.097 R)
• M17: 12,493,666 km (0.111 R)
• M18: 12,770,422 km (0.072 R)
• M19: 13,221,609 km (0.065 R)
• M20: 15,258,983 km (0.074 R)
• M21: 16,418,067 km (0.115 R)
• M22: 16,884,364 km (0.106 R)
• M23: 20,171,328 km (0.102 R)
• M24: 28,547,612 km (0.033 R)
• M25: 30,602,488 km (0.071 R)
• M26: 35,887,632 km (0.089 R)
• M27: 36,673,020 km (0.043 R)
• M28: 37,814,751 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 620

Radius: 5

Gravity: 24.8 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 6.15 AU - 8.23 AU

Year: 12448 Days

Day: 25 Hours

Environment

Temp: -232 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,360,233 km

• M1: 62,981 km (0.104 R)
• M2: 218,862 km (0.093 R)
• M3: 656,435 km (0.086 R)
• M4: 950,844 km (0.093 R)
• M5: 1,140,684 km (0.104 R)
• M6: 1,355,806 km (0.116 R)
• M7: 1,884,933 km (0.042 R)
• M8: 5,143,773 km (0.108 R)
• M9: 6,100,900 km (0.097 R)
• M10: 6,405,930 km (0.091 R)
• M11: 7,861,518 km (0.06 R)
• M12: 8,361,175 km (0.106 R)
• M13: 8,833,455 km (0.044 R)
• M14: 9,027,334 km (0.116 R)
• M15: 10,627,283 km (0.105 R)
• M16: 17,591,363 km (0.091 R)
• M17: 27,707,770 km (0.06 R)
• M18: 41,386,999 km (0.083 R)
• M19: 44,717,347 km (0.071 R)
• M20: 49,887,748 km (0.073 R)
• M21: 52,378,553 km (0.03 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.3

Radius: 5.1

Gravity: 27.39 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 9.26 AU - 9.42 AU

Year: 18430 Days

Day: 15.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,360,233 km

• M1: 63,429 km (0.098 R)
• M2: 267,930 km (0.11 R)
• M3: 434,582 km (0.104 R)
• M4: 798,404 km (0.095 R)
• M5: 1,345,334 km (0.076 R)
• M6: 1,547,440 km (0.029 R)
• M7: 1,787,545 km (0.026 R)
• M8: 2,092,276 km (0.103 R)
• M9: 3,190,474 km (0.073 R)
• M10: 3,848,405 km (0.091 R)
• M11: 4,065,472 km (0.08 R)
• M12: 4,323,678 km (0.113 R)
• M13: 5,544,546 km (0.096 R)
• M14: 5,943,523 km (0.056 R)
• M15: 6,150,118 km (0.096 R)
• M16: 8,281,589 km (0.104 R)
• M17: 8,487,585 km (0.113 R)
• M18: 10,677,847 km (0.108 R)
• M19: 11,169,575 km (0.055 R)
• M20: 12,940,814 km (0.029 R)
• M21: 14,515,930 km (0.104 R)
• M22: 28,088,047 km (0.042 R)
• M23: 32,716,306 km (0.082 R)
• M24: 33,360,774 km (0.088 R)
• M25: 35,615,214 km (0.1 R)
• M26: 37,969,136 km (0.087 R)
• M27: 49,260,185 km (0.105 R)
• M28: 50,962,310 km (0.077 R)
• M29: 55,206,701 km (0.084 R)
• M30: 55,753,182 km (0.11 R)
• M31: 58,729,431 km (0.096 R)
• M32: 72,998,675 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.8

Radius: 6.8

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 10.44 AU - 12.08 AU

Year: 24396 Days

Day: 15.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,360,233 km

• M1: 84,672 km (0.071 R)
• M2: 440,416 km (0.104 R)
• M3: 1,092,364 km (0.083 R)
• M4: 1,327,083 km (0.061 R)
• M5: 1,777,522 km (0.054 R)
• M6: 2,284,210 km (0.098 R)
• M7: 4,388,753 km (0.093 R)
• M8: 4,716,372 km (0.117 R)
• M9: 5,095,453 km (0.076 R)
• M10: 5,645,076 km (0.119 R)
• M11: 7,348,696 km (0.063 R)
• M12: 8,146,502 km (0.115 R)
• M13: 8,591,555 km (0.116 R)
• M14: 9,476,277 km (0.042 R)
• M15: 12,558,891 km (0.055 R)
• M16: 13,085,924 km (0.109 R)
• M17: 13,696,433 km (0.105 R)
• M18: 15,047,152 km (0.045 R)
• M19: 16,406,548 km (0.041 R)
• M20: 17,196,126 km (0.09 R)
• M21: 17,682,020 km (0.116 R)
• M22: 24,347,203 km (0.116 R)
• M23: 25,269,773 km (0.085 R)
• M24: 29,308,317 km (0.075 R)
• M25: 34,009,580 km (0.108 R)
• M26: 35,944,030 km (0.104 R)
• M27: 36,604,804 km (0.064 R)
• M28: 37,408,294 km (0.053 R)
• M29: 38,360,634 km (0.045 R)
• M30: 47,829,282 km (0.091 R)
• M31: 48,950,817 km (0.045 R)
• M32: 60,214,340 km (0.096 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 13,285 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit