🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.3

Radius: 9.3

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.58 AU - 0.64 AU

Year: 329 Days

Day: 7.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,986,131 km

• M1: 115,639 km (0.085 R)
• M2: 421,716 km (0.101 R)
• M3: 1,148,612 km (0.106 R)
• M4: 1,587,981 km (0.089 R)
• M5: 2,046,948 km (0.108 R)
• M6: 2,758,286 km (0.059 R)
• M7: 3,299,381 km (0.052 R)
• M8: 4,142,664 km (0.119 R)
• M9: 4,551,366 km (0.109 R)
• M10: 4,912,495 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.8

Radius: 14.1

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.72 AU - 0.96 AU

Year: 531 Days

Day: 9.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,986,131 km

• M1: 175,329 km (0.115 R)
• M2: 1,138,440 km (0.082 R)
• M3: 2,171,862 km (0.116 R)
• M4: 2,730,460 km (0.093 R)
• M5: 3,268,713 km (0.083 R)
• M6: 4,141,916 km (0.076 R)
• M7: 5,636,997 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.3

Radius: 11.7

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.1 AU - 4.48 AU

Year: 5093 Days

Day: 5.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,986,131 km

• M1: 145,708 km (0.107 R)
• M2: 758,910 km (0.085 R)
• M3: 1,260,811 km (0.065 R)
• M4: 2,368,882 km (0.096 R)
• M5: 3,406,194 km (0.109 R)
• M6: 3,897,922 km (0.086 R)
• M7: 4,411,192 km (0.088 R)
• M8: 5,367,123 km (0.069 R)
• M9: 5,909,864 km (0.064 R)
• M10: 6,522,467 km (0.042 R)
• M11: 9,109,613 km (0.029 R)
• M12: 10,151,412 km (0.104 R)
• M13: 14,947,370 km (0.058 R)
• M14: 17,866,922 km (0.093 R)
• M15: 18,669,216 km (0.086 R)
• M16: 21,369,158 km (0.12 R)
• M17: 22,967,761 km (0.085 R)
• M18: 23,996,695 km (0.109 R)
• M19: 26,832,622 km (0.119 R)
• M20: 27,355,317 km (0.101 R)
• M21: 28,331,294 km (0.106 R)
• M22: 31,398,349 km (0.077 R)
• M23: 32,962,395 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.8

Radius: 12.1

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.61 AU - 4.09 AU

Year: 5214 Days

Day: 12.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,986,131 km

• M1: 151,543 km (0.09 R)
• M2: 547,379 km (0.064 R)
• M3: 1,066,633 km (0.109 R)
• M4: 2,086,890 km (0.095 R)
• M5: 2,646,686 km (0.116 R)
• M6: 3,741,443 km (0.086 R)
• M7: 4,316,198 km (0.083 R)
• M8: 4,785,486 km (0.085 R)
• M9: 5,523,453 km (0.046 R)
• M10: 6,368,830 km (0.087 R)
• M11: 8,276,951 km (0.099 R)
• M12: 11,640,659 km (0.027 R)
• M13: 13,188,997 km (0.114 R)
• M14: 14,638,600 km (0.045 R)
• M15: 15,945,936 km (0.116 R)
• M16: 18,385,130 km (0.117 R)
• M17: 22,036,514 km (0.111 R)
• M18: 24,396,421 km (0.086 R)
• M19: 27,445,076 km (0.069 R)
• M20: 29,060,733 km (0.117 R)
• M21: 33,577,392 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.2

Radius: 3.5

Gravity: 14.63 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 6.27 AU - 6.81 AU

Year: 11545 Days

Day: 18.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,986,131 km

• M1: 43,533 km (0.113 R)
• M2: 194,926 km (0.05 R)
• M3: 364,570 km (0.102 R)
• M4: 728,990 km (0.117 R)
• M5: 1,168,359 km (0.074 R)
• M6: 2,232,449 km (0.105 R)
• M7: 2,855,375 km (0.092 R)
• M8: 6,651,570 km (0.067 R)
• M9: 7,504,727 km (0.102 R)
• M10: 10,268,099 km (0.085 R)
• M11: 10,968,217 km (0.12 R)
• M12: 11,208,471 km (0.064 R)
• M13: 12,051,754 km (0.07 R)
• M14: 20,228,325 km (0.094 R)
• M15: 25,183,306 km (0.119 R)
• M16: 27,850,187 km (0.083 R)
• M17: 32,934,420 km (0.05 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 927.1

Radius: 4.8

Gravity: 40.24 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 8.57 AU - 10.31 AU

Year: 20020 Days

Day: 20.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 36,986,131 km

• M1: 61,934 km (0.063 R)
• M2: 437,723 km (0.056 R)
• M3: 646,113 km (0.11 R)
• M4: 896,091 km (0.068 R)
• M5: 1,097,151 km (0.111 R)
• M6: 1,390,512 km (0.11 R)
• M7: 2,377,858 km (0.061 R)
• M8: 2,542,715 km (0.054 R)
• M9: 3,426,390 km (0.025 R)
• M10: 5,246,547 km (0.041 R)
• M11: 6,031,637 km (0.114 R)
• M12: 6,429,716 km (0.114 R)
• M13: 9,961,273 km (0.088 R)
• M14: 11,422,097 km (0.113 R)
• M15: 11,757,495 km (0.059 R)
• M16: 19,446,078 km (0.092 R)
• M17: 19,636,516 km (0.056 R)
• M18: 23,279,523 km (0.063 R)
• M19: 26,406,418 km (0.098 R)
• M20: 27,707,770 km (0.042 R)
• M21: 27,948,772 km (0.112 R)
• M22: 28,313,192 km (0.072 R)
• M23: 28,557,785 km (0.114 R)
• M24: 30,823,145 km (0.116 R)
• M25: 35,707,815 km (0.119 R)
• M26: 37,004,828 km (0.098 R)
• M27: 37,886,858 km (0.112 R)
• M28: 38,933,295 km (0.117 R)
• M29: 42,667,706 km (0.091 R)
• M30: 44,456,448 km (0.114 R)
• M31: 54,153,681 km (0.084 R)
• M32: 62,856,687 km (0.056 R)
• M33: 64,956,742 km (0.096 R)
• M34: 74,520,983 km (0.151 R)
• M35: 75,221,250 km (0.072 R)
• M36: 75,925,856 km (0.111 R)
• M37: 77,826,497 km (0.217 R)
• M38: 79,758,404 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609.5

Radius: 7.6

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 9.33 AU - 10.13 AU

Year: 20950 Days

Day: 15.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 179 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 36,986,131 km

• M1: 94,546 km (0.038 R)
• M2: 409,150 km (0.094 R)
• M3: 697,575 km (0.084 R)
• M4: 1,272,479 km (0.046 R)
• M5: 2,029,894 km (0.116 R)
• M6: 2,428,422 km (0.066 R)
• M7: 3,582,570 km (0.077 R)
• M8: 5,290,379 km (0.108 R)
• M9: 6,005,158 km (0.113 R)
• M10: 7,149,133 km (0.112 R)
• M11: 7,971,622 km (0.025 R)
• M12: 9,861,342 km (0.072 R)
• M13: 10,633,716 km (0.059 R)
• M14: 13,691,646 km (0.067 R)
• M15: 13,982,614 km (0.092 R)
• M16: 14,501,419 km (0.11 R)
• M17: 15,894,774 km (0.105 R)
• M18: 16,871,797 km (0.111 R)
• M19: 18,499,871 km (0.095 R)
• M20: 19,215,697 km (0.074 R)
• M21: 21,966,054 km (0.055 R)
• M22: 24,008,813 km (0.078 R)
• M23: 29,542,588 km (0.098 R)
• M24: 30,643,628 km (0.117 R)
• M25: 32,282,173 km (0.064 R)
• M26: 33,581,580 km (0.084 R)
• M27: 35,186,616 km (0.082 R)
• M28: 36,146,137 km (0.042 R)
• M29: 39,275,275 km (0.113 R)
• M30: 43,044,992 km (0.103 R)
• M31: 44,142,143 km (0.107 R)
• M32: 50,598,787 km (0.108 R)
• M33: 56,531,240 km (0.091 R)
• M34: 60,538,219 km (0.104 R)
• M35: 62,113,186 km (0.093 R)
• M36: 68,474,685 km (0.098 R)
• M37: 71,921,720 km (0.191 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.2

Radius: 5.8

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 8.92 AU - 10.72 AU

Year: 21241 Days

Day: 24.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 36,986,131 km

• M1: 156,928 km (0.1 R)
• M2: 416,181 km (0.099 R)
• M3: 604,824 km (0.1 R)
• M4: 1,049,579 km (0.094 R)
• M5: 1,989,951 km (0.114 R)
• M6: 3,077,976 km (0.113 R)
• M7: 3,790,660 km (0.118 R)
• M8: 4,733,426 km (0.085 R)
• M9: 6,082,799 km (0.107 R)
• M10: 6,988,764 km (0.091 R)
• M11: 8,209,333 km (0.079 R)
• M12: 8,535,456 km (0.105 R)
• M13: 9,213,434 km (0.106 R)
• M14: 12,408,395 km (0.092 R)
• M15: 12,900,124 km (0.063 R)
• M16: 17,010,923 km (0.078 R)
• M17: 17,694,436 km (0.118 R)
• M18: 18,082,044 km (0.1 R)
• M19: 18,317,362 km (0.112 R)
• M20: 20,442,549 km (0.077 R)
• M21: 22,006,595 km (0.073 R)
• M22: 22,545,297 km (0.091 R)
• M23: 22,909,119 km (0.047 R)
• M24: 30,368,667 km (0.099 R)
• M25: 32,170,274 km (0.116 R)
• M26: 37,489,825 km (0.105 R)
• M27: 39,692,803 km (0.095 R)
• M28: 40,758,837 km (0.09 R)
• M29: 43,366,777 km (0.078 R)
• M30: 48,156,901 km (0.096 R)
• M31: 50,756,912 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.3

Radius: 6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 8.29 AU - 11.89 AU

Year: 22123 Days

Day: 18.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,986,131 km

• M1: 95,743 km (0.099 R)
• M2: 282,740 km (0.118 R)
• M3: 523,742 km (0.114 R)
• M4: 777,161 km (0.106 R)
• M5: 965,505 km (0.1 R)
• M6: 1,712,148 km (0.068 R)
• M7: 1,944,324 km (0.075 R)
• M8: 2,868,390 km (0.088 R)
• M9: 3,931,432 km (0.098 R)
• M10: 4,131,295 km (0.079 R)
• M11: 4,744,197 km (0.114 R)
• M12: 5,477,077 km (0.056 R)
• M13: 6,149,071 km (0.113 R)
• M14: 10,734,844 km (0.058 R)
• M15: 13,341,587 km (0.096 R)
• M16: 16,086,708 km (0.097 R)
• M17: 18,204,415 km (0.105 R)
• M18: 19,909,681 km (0.058 R)
• M19: 23,798,927 km (0.059 R)
• M20: 24,802,429 km (0.085 R)
• M21: 26,008,487 km (0.052 R)
• M22: 27,524,811 km (0.044 R)
• M23: 29,860,483 km (0.062 R)
• M24: 31,224,516 km (0.085 R)
• M25: 33,867,013 km (0.073 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 - 15,686 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit