🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.2

Radius: 12.7

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.75 AU - 0.79 AU

Year: 466 Days

Day: 6.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,264,909 km

• M1: 157,975 km (0.106 R)
• M2: 758,611 km (0.118 R)
• M3: 1,241,064 km (0.104 R)
• M4: 1,709,305 km (0.077 R)
• M5: 2,885,145 km (0.118 R)
• M6: 3,309,105 km (0.079 R)
• M7: 4,901,125 km (0.077 R)
• M8: 5,443,119 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.4

Radius: 11.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.36 AU - 1.44 AU

Year: 1143 Days

Day: 9.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,264,909 km

• M1: 146,756 km (0.035 R)
• M2: 578,645 km (0.105 R)
• M3: 1,139,936 km (0.114 R)
• M4: 1,575,415 km (0.116 R)
• M5: 2,335,522 km (0.083 R)
• M6: 3,602,317 km (0.074 R)
• M7: 4,119,177 km (0.097 R)
• M8: 6,340,257 km (0.113 R)
• M9: 7,167,982 km (0.08 R)
• M10: 7,608,249 km (0.086 R)
• M11: 8,040,586 km (0.106 R)
• M12: 10,056,866 km (0.043 R)
• M13: 10,485,016 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.4

Radius: 14.3

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.52 AU - 2.34 AU

Year: 1851 Days

Day: 12 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,264,909 km

• M1: 177,872 km (0.108 R)
• M2: 792,121 km (0.091 R)
• M3: 1,706,762 km (0.115 R)
• M4: 3,463,640 km (0.089 R)
• M5: 3,958,360 km (0.087 R)
• M6: 4,718,466 km (0.105 R)
• M7: 6,630,327 km (0.084 R)
• M8: 7,164,392 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.9

Radius: 11

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.13 AU - 3.63 AU

Year: 4289 Days

Day: 7.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,264,909 km

• M1: 137,032 km (0.109 R)
• M2: 525,986 km (0.049 R)
• M3: 879,785 km (0.063 R)
• M4: 1,379,592 km (0.094 R)
• M5: 2,318,468 km (0.108 R)
• M6: 3,019,932 km (0.119 R)
• M7: 3,576,586 km (0.118 R)
• M8: 4,295,404 km (0.099 R)
• M9: 4,922,069 km (0.114 R)
• M10: 5,271,380 km (0.062 R)
• M11: 6,141,591 km (0.059 R)
• M12: 7,587,754 km (0.102 R)
• M13: 8,129,148 km (0.115 R)
• M14: 9,168,853 km (0.067 R)
• M15: 9,616,899 km (0.093 R)
• M16: 9,994,335 km (0.103 R)
• M17: 11,464,134 km (0.076 R)
• M18: 15,050,443 km (0.12 R)
• M19: 15,848,249 km (0.119 R)
• M20: 17,902,976 km (0.092 R)
• M21: 18,798,618 km (0.091 R)
• M22: 21,451,138 km (0.04 R)
• M23: 22,024,547 km (0.095 R)
• M24: 22,829,682 km (0.115 R)
• M25: 27,655,111 km (0.088 R)
• M26: 29,199,410 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.1

Radius: 8.7

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.39 AU - 3.67 AU

Year: 4578 Days

Day: 7.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,264,909 km

• M1: 108,458 km (0.119 R)
• M2: 436,527 km (0.11 R)
• M3: 711,787 km (0.085 R)
• M4: 1,411,456 km (0.084 R)
• M5: 1,733,241 km (0.092 R)
• M6: 2,023,012 km (0.103 R)
• M7: 3,203,489 km (0.111 R)
• M8: 3,952,974 km (0.044 R)
• M9: 4,256,957 km (0.113 R)
• M10: 6,132,316 km (0.056 R)
• M11: 6,691,214 km (0.09 R)
• M12: 7,675,568 km (0.079 R)
• M13: 9,732,688 km (0.065 R)
• M14: 10,534,383 km (0.097 R)
• M15: 11,035,985 km (0.102 R)
• M16: 11,729,670 km (0.054 R)
• M17: 12,730,480 km (0.117 R)
• M18: 14,797,473 km (0.081 R)
• M19: 16,683,155 km (0.114 R)
• M20: 18,663,232 km (0.094 R)
• M21: 19,212,555 km (0.079 R)
• M22: 21,518,008 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.7

Radius: 11.5

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.52 AU - 4.46 AU

Year: 5501 Days

Day: 14.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,264,909 km

• M1: 146,905 km (0.102 R)
• M2: 809,025 km (0.105 R)
• M3: 1,246,300 km (0.089 R)
• M4: 1,853,966 km (0.033 R)
• M5: 2,335,522 km (0.095 R)
• M6: 2,852,083 km (0.108 R)
• M7: 3,301,775 km (0.092 R)
• M8: 3,975,264 km (0.089 R)
• M9: 4,387,706 km (0.106 R)
• M10: 8,391,842 km (0.063 R)
• M11: 9,144,469 km (0.057 R)
• M12: 12,876,188 km (0.064 R)
• M13: 17,518,509 km (0.038 R)
• M14: 18,014,426 km (0.11 R)
• M15: 18,747,156 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 987.4

Radius: 7.1

Gravity: 19.59 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.88 AU - 6.32 AU

Year: 9147 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 38,264,909 km

• M1: 88,263 km (0.081 R)
• M2: 587,471 km (0.058 R)
• M3: 865,124 km (0.087 R)
• M4: 1,230,592 km (0.118 R)
• M5: 1,773,034 km (0.117 R)
• M6: 2,272,092 km (0.103 R)
• M7: 2,949,920 km (0.078 R)
• M8: 3,323,765 km (0.105 R)
• M9: 3,755,056 km (0.11 R)
• M10: 3,998,302 km (0.117 R)
• M11: 4,791,919 km (0.06 R)
• M12: 6,080,705 km (0.082 R)
• M13: 6,844,851 km (0.103 R)
• M14: 7,500,837 km (0.106 R)
• M15: 9,670,754 km (0.044 R)
• M16: 10,496,086 km (0.064 R)
• M17: 10,817,422 km (0.12 R)
• M18: 12,110,247 km (0.027 R)
• M19: 15,270,651 km (0.062 R)
• M20: 17,409,452 km (0.114 R)
• M21: 24,727,182 km (0.053 R)
• M22: 28,069,198 km (0.09 R)
• M23: 29,106,809 km (0.113 R)
• M24: 30,493,432 km (0.111 R)
• M25: 31,038,267 km (0.109 R)
• M26: 32,259,883 km (0.066 R)
• M27: 32,825,662 km (0.082 R)
• M28: 33,513,214 km (0.092 R)
• M29: 36,237,990 km (0.119 R)
• M30: 36,481,834 km (0.096 R)
• M31: 39,363,538 km (0.026 R)
• M32: 42,935,935 km (0.118 R)
• M33: 45,434,070 km (0.058 R)
• M34: 49,809,957 km (0.079 R)
• M35: 50,413,884 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725.4

Radius: 5.3

Gravity: 25.82 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 6.53 AU - 8.25 AU

Year: 13867 Days

Day: 23.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 38,264,909 km

• M1: 65,973 km (0.102 R)
• M2: 279,000 km (0.052 R)
• M3: 495,468 km (0.043 R)
• M4: 823,686 km (0.119 R)
• M5: 1,048,681 km (0.064 R)
• M6: 1,485,656 km (0.115 R)
• M7: 1,688,212 km (0.03 R)
• M8: 1,944,772 km (0.112 R)
• M9: 2,347,490 km (0.082 R)
• M10: 2,557,974 km (0.083 R)
• M11: 2,827,250 km (0.109 R)
• M12: 3,115,076 km (0.07 R)
• M13: 3,292,051 km (0.105 R)
• M14: 3,583,467 km (0.105 R)
• M15: 3,806,219 km (0.047 R)
• M16: 4,008,625 km (0.088 R)
• M17: 4,757,661 km (0.068 R)
• M18: 5,235,626 km (0.097 R)
• M19: 6,128,576 km (0.097 R)
• M20: 7,789,412 km (0.119 R)
• M21: 9,203,710 km (0.095 R)
• M22: 9,728,798 km (0.105 R)
• M23: 10,953,855 km (0.078 R)
• M24: 13,505,247 km (0.083 R)
• M25: 14,390,268 km (0.043 R)
• M26: 16,502,889 km (0.113 R)
• M27: 17,752,779 km (0.109 R)
• M28: 18,730,551 km (0.104 R)
• M29: 20,002,731 km (0.114 R)
• M30: 22,063,592 km (0.119 R)
• M31: 22,623,686 km (0.095 R)
• M32: 26,706,960 km (0.08 R)
• M33: 31,138,647 km (0.092 R)
• M34: 37,998,158 km (0.097 R)
• M35: 45,348,500 km (0.097 R)
• M36: 55,455,033 km (0.077 R)
• M37: 60,572,926 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 65.4

Radius: 6.8

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.18 AU - 10.58 AU

Year: 23084 Days

Day: 21.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,264,909 km

• M1: 100,679 km (0.057 R)
• M2: 787,034 km (0.032 R)
• M3: 1,115,402 km (0.115 R)
• M4: 2,384,440 km (0.08 R)
• M5: 3,077,976 km (0.117 R)
• M6: 3,849,602 km (0.103 R)
• M7: 4,576,498 km (0.051 R)
• M8: 6,576,472 km (0.109 R)
• M9: 7,007,463 km (0.093 R)
• M10: 11,567,805 km (0.086 R)
• M11: 14,634,262 km (0.099 R)
• M12: 14,937,347 km (0.105 R)
• M13: 16,647,101 km (0.079 R)
• M14: 18,695,395 km (0.106 R)
• M15: 18,909,021 km (0.112 R)
• M16: 20,677,268 km (0.061 R)
• M17: 21,679,723 km (0.076 R)
• M18: 33,969,787 km (0.114 R)
• M19: 37,695,073 km (0.073 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 10,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit