🌌 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: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.2

Radius: 9.1

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.76 AU - 0.9 AU

Year: 481 Days

Day: 11.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,394,627 km

• M1: 113,246 km (0.089 R)
• M2: 567,425 km (0.115 R)
• M3: 1,125,724 km (0.052 R)
• M4: 1,460,823 km (0.08 R)
• M5: 1,788,443 km (0.086 R)
• M6: 2,074,474 km (0.038 R)
• M7: 2,391,172 km (0.091 R)
• M8: 2,820,369 km (0.071 R)
• M9: 3,210,969 km (0.094 R)
• M10: 3,985,287 km (0.087 R)
• M11: 4,849,514 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.9

Radius: 12.2

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.05 AU - 3.17 AU

Year: 2681 Days

Day: 14.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,394,627 km

• M1: 166,652 km (0.103 R)
• M2: 619,186 km (0.064 R)
• M3: 1,290,880 km (0.107 R)
• M4: 1,747,453 km (0.089 R)
• M5: 2,459,987 km (0.086 R)
• M6: 3,050,151 km (0.117 R)
• M7: 4,070,408 km (0.044 R)
• M8: 6,567,795 km (0.08 R)
• M9: 7,014,195 km (0.096 R)
• M10: 7,531,056 km (0.101 R)
• M11: 8,099,827 km (0.071 R)
• M12: 10,288,145 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733

Radius: 11

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.01 AU - 3.43 AU

Year: 3674 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,394,627 km

• M1: 136,882 km (0.093 R)
• M2: 753,076 km (0.101 R)
• M3: 1,227,600 km (0.099 R)
• M4: 2,431,265 km (0.054 R)
• M5: 2,868,539 km (0.088 R)
• M6: 3,593,191 km (0.098 R)
• M7: 4,053,504 km (0.059 R)
• M8: 5,485,455 km (0.095 R)
• M9: 6,910,973 km (0.086 R)
• M10: 7,727,029 km (0.064 R)
• M11: 11,159,852 km (0.095 R)
• M12: 18,008,292 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.3

Radius: 13

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.24 AU - 4.56 AU

Year: 4897 Days

Day: 5.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,394,627 km

• M1: 165,455 km (0.111 R)
• M2: 769,831 km (0.117 R)
• M3: 1,802,206 km (0.063 R)
• M4: 2,605,845 km (0.075 R)
• M5: 3,720,948 km (0.105 R)
• M6: 4,234,069 km (0.11 R)
• M7: 4,718,466 km (0.097 R)
• M8: 5,132,404 km (0.064 R)
• M9: 6,809,994 km (0.099 R)
• M10: 10,079,605 km (0.062 R)
• M11: 13,542,048 km (0.091 R)
• M12: 18,227,753 km (0.06 R)
• M13: 23,896,764 km (0.095 R)
• M14: 27,293,982 km (0.109 R)
• M15: 27,875,918 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.9

Radius: 14.7

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.92 AU - 4.38 AU

Year: 5375 Days

Day: 10 Hours

Environment

Temp: -218 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,394,627 km

• M1: 182,809 km (0.067 R)
• M2: 677,828 km (0.095 R)
• M3: 1,316,162 km (0.061 R)
• M4: 2,107,236 km (0.08 R)
• M5: 2,705,178 km (0.102 R)
• M6: 4,184,851 km (0.031 R)
• M7: 5,721,969 km (0.098 R)
• M8: 8,713,478 km (0.106 R)
• M9: 13,547,434 km (0.087 R)
• M10: 15,167,130 km (0.041 R)
• M11: 15,839,572 km (0.076 R)
• M12: 17,355,447 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.4

Radius: 8.1

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.26 AU - 6.2 AU

Year: 7605 Days

Day: 5.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 72,394,627 km

• M1: 100,679 km (0.097 R)
• M2: 394,190 km (0.054 R)
• M3: 937,380 km (0.097 R)
• M4: 1,395,599 km (0.079 R)
• M5: 2,012,690 km (0.078 R)
• M6: 2,338,364 km (0.079 R)
• M7: 2,659,401 km (0.097 R)
• M8: 3,096,526 km (0.12 R)
• M9: 4,331,606 km (0.088 R)
• M10: 4,584,876 km (0.114 R)
• M11: 7,332,390 km (0.093 R)
• M12: 8,669,645 km (0.055 R)
• M13: 9,118,888 km (0.078 R)
• M14: 9,630,961 km (0.094 R)
• M15: 10,814,879 km (0.047 R)
• M16: 11,125,444 km (0.093 R)
• M17: 11,656,217 km (0.108 R)
• M18: 12,654,035 km (0.102 R)
• M19: 13,173,888 km (0.076 R)
• M20: 14,945,874 km (0.112 R)
• M21: 15,461,538 km (0.118 R)
• M22: 16,189,631 km (0.101 R)
• M23: 17,714,333 km (0.107 R)
• M24: 20,569,558 km (0.037 R)
• M25: 21,207,443 km (0.113 R)
• M26: 23,286,255 km (0.071 R)
• M27: 23,631,078 km (0.111 R)
• M28: 25,588,417 km (0.069 R)
• M29: 30,640,037 km (0.104 R)
• M30: 33,072,200 km (0.034 R)
• M31: 34,726,004 km (0.091 R)
• M32: 37,250,169 km (0.095 R)
• M33: 43,177,087 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.6

Radius: 12.6

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.95 AU - 5.89 AU

Year: 8023 Days

Day: 9.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,394,627 km

• M1: 156,629 km (0.108 R)
• M2: 763,398 km (0.104 R)
• M3: 1,544,748 km (0.082 R)
• M4: 2,294,083 km (0.101 R)
• M5: 2,697,250 km (0.113 R)
• M6: 3,741,742 km (0.106 R)
• M7: 4,228,982 km (0.106 R)
• M8: 5,823,247 km (0.063 R)
• M9: 7,040,973 km (0.053 R)
• M10: 8,381,071 km (0.115 R)
• M11: 10,869,482 km (0.046 R)
• M12: 11,460,842 km (0.084 R)
• M13: 12,335,242 km (0.096 R)
• M14: 14,686,472 km (0.115 R)
• M15: 16,156,720 km (0.062 R)
• M16: 18,061,699 km (0.108 R)
• M17: 20,038,934 km (0.115 R)
• M18: 23,676,107 km (0.085 R)
• M19: 27,914,215 km (0.094 R)
• M20: 28,465,632 km (0.098 R)
• M21: 29,780,598 km (0.113 R)
• M22: 33,553,905 km (0.103 R)
• M23: 35,770,347 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.2

Radius: 6.8

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.74 AU - 7.66 AU

Year: 9816 Days

Day: 18.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,394,627 km

• M1: 84,972 km (0.115 R)
• M2: 345,721 km (0.059 R)
• M3: 1,644,679 km (0.078 R)
• M4: 4,296,900 km (0.113 R)
• M5: 5,181,921 km (0.038 R)
• M6: 6,404,135 km (0.086 R)
• M7: 10,170,710 km (0.092 R)
• M8: 12,921,067 km (0.032 R)
• M9: 13,231,184 km (0.105 R)
• M10: 13,974,087 km (0.096 R)
• M11: 22,251,187 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 862.5

Radius: 4.2

Gravity: 48.89 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.95 AU - 9.61 AU

Year: 16542 Days

Day: 18.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 72,394,627 km

• M1: 53,107 km (0.065 R)
• M2: 234,270 km (0.099 R)
• M3: 596,896 km (0.077 R)
• M4: 781,350 km (0.04 R)
• M5: 1,444,667 km (0.066 R)
• M6: 1,657,395 km (0.046 R)
• M7: 2,291,839 km (0.104 R)
• M8: 4,343,574 km (0.034 R)
• M9: 4,822,437 km (0.094 R)
• M10: 4,965,602 km (0.06 R)
• M11: 5,684,420 km (0.056 R)
• M12: 6,089,381 km (0.088 R)
• M13: 7,139,708 km (0.116 R)
• M14: 8,052,704 km (0.094 R)
• M15: 8,563,281 km (0.099 R)
• M16: 12,486,485 km (0.079 R)
• M17: 16,151,633 km (0.044 R)
• M18: 16,311,553 km (0.107 R)
• M19: 16,472,521 km (0.076 R)
• M20: 16,797,747 km (0.063 R)
• M21: 19,736,447 km (0.073 R)
• M22: 20,011,109 km (0.052 R)
• M23: 22,598,853 km (0.074 R)
• M24: 23,611,331 km (0.109 R)
• M25: 33,987,888 km (0.113 R)
• M26: 35,855,468 km (0.083 R)
• M27: 36,676,461 km (0.079 R)
• M28: 36,814,390 km (0.084 R)
• M29: 38,072,359 km (0.107 R)
• M30: 38,640,532 km (0.048 R)
• M31: 43,083,140 km (0.115 R)
• M32: 44,951,617 km (0.108 R)
• M33: 54,567,319 km (0.103 R)
• M34: 56,752,495 km (0.113 R)
• M35: 57,493,753 km (0.062 R)
• M36: 58,241,293 km (0.084 R)
• M37: 58,617,532 km (0.043 R)
• M38: 59,374,796 km (0.085 R)
• M39: 61,685,934 km (0.063 R)
• M40: 65,061,460 km (0.12 R)
• M41: 66,486,380 km (0.103 R)
• M42: 70,033,495 km (0.111 R)
• M43: 71,745,493 km (0.084 R)
• M44: 71,961,513 km (0.1 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 18,603 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit