🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.68 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.9

Radius: 8.5

Gravity: 9.8 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.17 AU - 1.53 AU

Year: 1083 Days

Day: 11.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,584,756 km

• M1: 105,766 km (0.058 R)
• M2: 418,126 km (0.088 R)
• M3: 907,760 km (0.097 R)
• M4: 1,209,050 km (0.115 R)
• M5: 1,919,640 km (0.107 R)
• M6: 2,255,038 km (0.106 R)
• M7: 2,654,165 km (0.119 R)
• M8: 2,977,297 km (0.097 R)
• M9: 3,518,841 km (0.11 R)
• M10: 3,893,733 km (0.112 R)
• M11: 4,452,631 km (0.088 R)
• M12: 4,986,995 km (0.111 R)
• M13: 5,646,272 km (0.096 R)
• M14: 6,205,619 km (0.115 R)
• M15: 7,064,759 km (0.082 R)
• M16: 7,434,865 km (0.105 R)
• M17: 8,027,571 km (0.068 R)
• M18: 9,103,928 km (0.091 R)
• M19: 10,025,750 km (0.097 R)
• M20: 10,557,122 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.1

Radius: 14.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.84 AU - 1.96 AU

Year: 1808 Days

Day: 11.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,584,756 km

• M1: 184,155 km (0.097 R)
• M2: 959,670 km (0.102 R)
• M3: 1,465,610 km (0.119 R)
• M4: 2,517,433 km (0.097 R)
• M5: 3,162,200 km (0.115 R)
• M6: 4,126,508 km (0.103 R)
• M7: 4,842,184 km (0.043 R)
• M8: 6,102,845 km (0.052 R)
• M9: 6,822,261 km (0.094 R)
• M10: 7,324,611 km (0.07 R)
• M11: 7,929,286 km (0.095 R)
• M12: 9,124,423 km (0.086 R)
• M13: 9,855,209 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.6

Radius: 10.5

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.93 AU - 1.97 AU

Year: 1880 Days

Day: 14.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,584,756 km

• M1: 130,599 km (0.085 R)
• M2: 663,167 km (0.109 R)
• M3: 1,242,261 km (0.108 R)
• M4: 1,650,962 km (0.116 R)
• M5: 2,112,172 km (0.09 R)
• M6: 3,246,723 km (0.055 R)
• M7: 3,752,663 km (0.061 R)
• M8: 4,092,549 km (0.113 R)
• M9: 4,705,302 km (0.115 R)
• M10: 6,113,915 km (0.059 R)
• M11: 6,506,311 km (0.119 R)
• M12: 8,153,383 km (0.112 R)
• M13: 8,500,749 km (0.112 R)
• M14: 9,023,744 km (0.112 R)
• M15: 11,886,897 km (0.052 R)
• M16: 13,133,646 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126

Radius: 10.7

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.44 AU - 3.5 AU

Year: 3533 Days

Day: 7.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,584,756 km

• M1: 133,142 km (0.093 R)
• M2: 497,263 km (0.025 R)
• M3: 902,973 km (0.081 R)
• M4: 1,282,203 km (0.108 R)
• M5: 1,681,630 km (0.043 R)
• M6: 2,118,904 km (0.052 R)
• M7: 2,514,890 km (0.116 R)
• M8: 2,889,632 km (0.095 R)
• M9: 3,286,366 km (0.109 R)
• M10: 3,786,771 km (0.036 R)
• M11: 4,507,234 km (0.071 R)
• M12: 5,002,403 km (0.07 R)
• M13: 5,733,787 km (0.111 R)
• M14: 6,196,493 km (0.104 R)
• M15: 6,911,571 km (0.113 R)
• M16: 7,462,989 km (0.115 R)
• M17: 8,894,641 km (0.094 R)
• M18: 10,066,291 km (0.115 R)
• M19: 11,919,958 km (0.102 R)
• M20: 13,542,796 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.7

Radius: 14.1

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.69 AU - 5.17 AU

Year: 6436 Days

Day: 8.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,584,756 km

• M1: 175,628 km (0.113 R)
• M2: 787,633 km (0.092 R)
• M3: 1,390,063 km (0.105 R)
• M4: 2,337,317 km (0.118 R)
• M5: 2,779,229 km (0.089 R)
• M6: 3,295,342 km (0.11 R)
• M7: 3,895,229 km (0.085 R)
• M8: 5,390,610 km (0.118 R)
• M9: 8,161,461 km (0.048 R)
• M10: 8,840,785 km (0.093 R)
• M11: 9,631,261 km (0.04 R)
• M12: 11,603,708 km (0.104 R)
• M13: 12,071,651 km (0.096 R)
• M14: 12,819,490 km (0.098 R)
• M15: 13,319,746 km (0.068 R)
• M16: 14,998,832 km (0.048 R)
• M17: 15,554,738 km (0.089 R)
• M18: 16,815,249 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.1

Radius: 8.1

Gravity: 15 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.68 AU - 4.88 AU

Year: 7214 Days

Day: 14.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,584,756 km

• M1: 100,829 km (0.117 R)
• M2: 671,246 km (0.114 R)
• M3: 1,961,527 km (0.081 R)
• M4: 2,407,927 km (0.082 R)
• M5: 3,797,841 km (0.092 R)
• M6: 4,162,112 km (0.108 R)
• M7: 4,436,474 km (0.101 R)
• M8: 4,960,965 km (0.095 R)
• M9: 6,784,263 km (0.073 R)
• M10: 7,126,693 km (0.093 R)
• M11: 8,394,984 km (0.094 R)
• M12: 8,834,502 km (0.111 R)
• M13: 9,807,636 km (0.112 R)
• M14: 10,098,305 km (0.084 R)
• M15: 15,766,568 km (0.076 R)
• M16: 19,228,562 km (0.113 R)
• M17: 28,288,808 km (0.073 R)
• M18: 31,846,544 km (0.092 R)
• M19: 32,485,028 km (0.095 R)
• M20: 34,786,890 km (0.09 R)
• M21: 35,463,970 km (0.102 R)
• M22: 36,149,877 km (0.117 R)
• M23: 36,961,296 km (0.114 R)
• M24: 37,784,682 km (0.118 R)
• M25: 38,982,213 km (0.072 R)
• M26: 40,204,877 km (0.113 R)
• M27: 40,825,558 km (0.117 R)
• M28: 42,984,106 km (0.04 R)
• M29: 43,243,060 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.8

Radius: 14.4

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 4.21 AU - 6.71 AU

Year: 8806 Days

Day: 5.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,584,756 km

• M1: 179,069 km (0.113 R)
• M2: 631,901 km (0.091 R)
• M3: 1,371,812 km (0.077 R)
• M4: 3,392,880 km (0.06 R)
• M5: 6,093,121 km (0.064 R)
• M6: 7,894,429 km (0.12 R)
• M7: 10,097,707 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.4

Radius: 3.8

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.75 AU - 8.41 AU

Year: 14405 Days

Day: 19.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,584,756 km

• M1: 47,722 km (0.105 R)
• M2: 166,652 km (0.041 R)
• M3: 351,555 km (0.107 R)
• M4: 876,943 km (0.053 R)
• M5: 1,040,004 km (0.115 R)
• M6: 2,377,709 km (0.066 R)
• M7: 2,516,236 km (0.099 R)
• M8: 2,809,298 km (0.078 R)
• M9: 3,227,873 km (0.062 R)
• M10: 3,419,508 km (0.103 R)
• M11: 4,138,176 km (0.067 R)
• M12: 4,364,518 km (0.114 R)
• M13: 4,546,279 km (0.076 R)
• M14: 7,989,274 km (0.089 R)
• M15: 13,605,777 km (0.077 R)
• M16: 13,882,084 km (0.104 R)
• M17: 14,791,639 km (0.099 R)
• M18: 18,421,183 km (0.034 R)
• M19: 20,512,411 km (0.08 R)
• M20: 21,991,336 km (0.059 R)
• M21: 23,619,110 km (0.098 R)
• M22: 32,676,513 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 89.4

Radius: 8

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 7.19 AU - 9.51 AU

Year: 16655 Days

Day: 19.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,584,756 km

• M1: 124,316 km (0.065 R)
• M2: 576,251 km (0.102 R)
• M3: 1,184,516 km (0.069 R)
• M4: 1,649,317 km (0.057 R)
• M5: 3,371,936 km (0.068 R)
• M6: 5,954,145 km (0.108 R)
• M7: 6,953,907 km (0.111 R)
• M8: 9,112,754 km (0.078 R)
• M9: 12,188,038 km (0.09 R)
• M10: 12,919,422 km (0.06 R)
• M11: 14,297,816 km (0.08 R)
• M12: 14,817,220 km (0.08 R)
• M13: 18,001,261 km (0.105 R)
• M14: 19,156,606 km (0.069 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.5

Radius: 3.9

Gravity: 33.96 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 7.5 AU - 10.64 AU

Year: 18855 Days

Day: 18.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,584,756 km

• M1: 48,470 km (0.108 R)
• M2: 296,204 km (0.089 R)
• M3: 504,893 km (0.106 R)
• M4: 911,949 km (0.114 R)
• M5: 1,402,330 km (0.071 R)
• M6: 10,583,900 km (0.096 R)
• M7: 13,165,211 km (0.05 R)
• M8: 13,575,109 km (0.118 R)
• M9: 14,420,337 km (0.049 R)
• M10: 17,985,703 km (0.099 R)
• M11: 22,384,928 km (0.11 R)
• M12: 23,462,332 km (0.11 R)
• M13: 25,825,978 km (0.09 R)
• M14: 30,070,818 km (0.111 R)
• M15: 32,234,452 km (0.116 R)
• M16: 42,962,564 km (0.096 R)
• M17: 44,775,540 km (0.099 R)
• M18: 53,394,921 km (0.092 R)
• M19: 53,567,407 km (0.112 R)
• M20: 53,740,193 km (0.09 R)
• M21: 62,289,262 km (0.051 R)
• M22: 63,635,344 km (0.104 R)
• M23: 65,197,295 km (0.106 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 19,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit