🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.09 AU - 1.37 AU

Year: 496 Days

Day: 39.9 Hours

Environment

Temp: 7 °C

Axial Tilt: 12.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.29 AU - 1.43 AU

Year: 576 Days

Day: 36.1 Hours

Environment

Temp: -16 °C

Axial Tilt: 29 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.45 AU - 1.57 AU

Year: 674 Days

Day: 26.8 Hours

Environment

Temp: -35 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.66 AU - 1.7 AU

Year: 791 Days

Day: 16 Hours

Environment

Temp: -42 °C

Axial Tilt: 42 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.45 AU - 2.27 AU

Year: 922 Days

Day: 44.8 Hours

Environment

Temp: -61 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.9

Radius: 14.4

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.45 AU - 6.79 AU

Year: 5502 Days

Day: 11.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 86,907,430 km

• M1: 222,452 km (0.079 R)
• M2: 547,827 km (0.086 R)
• M3: 750,981 km (0.068 R)
• M4: 1,069,475 km (0.071 R)
• M5: 1,237,623 km (0.11 R)
• M6: 1,349,522 km (0.088 R)
• M7: 1,448,407 km (0.11 R)
• M8: 1,851,423 km (0.104 R)
• M9: 2,018,823 km (0.104 R)
• M10: 2,269,998 km (0.074 R)
• M11: 2,552,140 km (0.069 R)
• M12: 2,697,549 km (0.082 R)
• M13: 2,997,044 km (0.033 R)
• M14: 3,173,120 km (0.057 R)
• M15: 3,375,377 km (0.061 R)
• M16: 3,558,933 km (0.112 R)
• M17: 3,675,320 km (0.12 R)
• M18: 3,769,418 km (0.103 R)
• M19: 3,864,263 km (0.094 R)
• M20: 4,080,731 km (0.11 R)
• M21: 4,375,887 km (0.119 R)
• M22: 4,934,935 km (0.089 R)
• M23: 5,170,252 km (0.1 R)
• M24: 5,329,275 km (0.079 R)
• M25: 5,597,952 km (0.106 R)
• M26: 5,734,086 km (0.117 R)
• M27: 5,871,118 km (0.053 R)
• M28: 6,544,907 km (0.073 R)
• M29: 7,007,763 km (0.102 R)
• M30: 7,391,631 km (0.099 R)
• M31: 7,481,240 km (0.116 R)
• M32: 8,242,095 km (0.113 R)
• M33: 8,678,920 km (0.112 R)
• M34: 10,805,305 km (0.092 R)
• M35: 11,249,161 km (0.089 R)
• M36: 11,664,296 km (0.109 R)
• M37: 12,190,282 km (0.099 R)
• M38: 12,688,143 km (0.085 R)
• M39: 12,903,714 km (0.107 R)
• M40: 13,192,887 km (0.107 R)
• M41: 14,184,721 km (0.107 R)
• M42: 14,333,720 km (0.105 R)
• M43: 14,972,802 km (0.057 R)
• M44: 15,314,932 km (0.12 R)
• M45: 15,544,416 km (0.099 R)
• M46: 15,929,480 km (0.112 R)
• M47: 16,084,464 km (0.1 R)
• M48: 16,317,687 km (0.07 R)
• M49: 17,621,133 km (0.095 R)
• M50: 17,861,687 km (0.115 R)
• M51: 19,122,049 km (0.065 R)
• M52: 20,117,473 km (0.063 R)
• M53: 22,288,288 km (0.069 R)
• M54: 22,984,666 km (0.109 R)
• M55: 23,379,454 km (0.108 R)
• M56: 23,688,075 km (0.084 R)
• M57: 24,487,975 km (0.09 R)
• M58: 25,116,286 km (0.098 R)
• M59: 27,171,611 km (0.093 R)
• M60: 27,310,438 km (0.107 R)
• M61: 28,008,761 km (0.063 R)
• M62: 28,242,732 km (0.071 R)
• M63: 28,524,574 km (0.083 R)
• M64: 28,948,834 km (0.074 R)
• M65: 29,185,497 km (0.116 R)
• M66: 29,375,337 km (0.093 R)
• M67: 29,899,378 km (0.064 R)
• M68: 29,994,971 km (0.06 R)
• M69: 31,344,344 km (0.11 R)
• M70: 31,684,679 km (0.048 R)
• M71: 31,830,986 km (0.111 R)
• M72: 32,173,116 km (0.089 R)
• M73: 32,320,171 km (0.065 R)
• M74: 32,565,661 km (0.092 R)
• M75: 32,713,314 km (0.041 R)
• M76: 32,861,117 km (0.11 R)
• M77: 33,157,470 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.5

Radius: 15

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 8.31 AU - 10.47 AU

Year: 10458 Days

Day: 9.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 120.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 86,907,430 km

• M1: 199,713 km (0.098 R)
• M2: 421,417 km (0.058 R)
• M3: 605,423 km (0.069 R)
• M4: 793,018 km (0.094 R)
• M5: 1,571,974 km (0.118 R)
• M6: 1,666,520 km (0.092 R)
• M7: 2,254,889 km (0.109 R)
• M8: 2,428,422 km (0.084 R)
• M9: 2,561,564 km (0.053 R)
• M10: 3,023,523 km (0.074 R)
• M11: 3,264,674 km (0.096 R)
• M12: 4,184,701 km (0.056 R)
• M13: 4,481,503 km (0.09 R)
• M14: 4,701,711 km (0.108 R)
• M15: 4,953,784 km (0.113 R)
• M16: 5,677,538 km (0.114 R)
• M17: 5,796,469 km (0.06 R)
• M18: 6,067,241 km (0.1 R)
• M19: 6,652,468 km (0.115 R)
• M20: 6,904,241 km (0.027 R)
• M21: 6,999,535 km (0.101 R)
• M22: 7,320,422 km (0.083 R)
• M23: 7,515,348 km (0.099 R)
• M24: 7,810,804 km (0.116 R)
• M25: 8,549,369 km (0.099 R)
• M26: 8,651,843 km (0.081 R)
• M27: 8,754,767 km (0.094 R)
• M28: 8,961,810 km (0.091 R)
• M29: 9,205,355 km (0.069 R)
• M30: 10,129,421 km (0.088 R)
• M31: 10,749,505 km (0.096 R)
• M32: 10,860,207 km (0.065 R)
• M33: 11,419,703 km (0.117 R)
• M34: 11,988,474 km (0.093 R)
• M35: 13,193,485 km (0.104 R)
• M36: 13,510,632 km (0.114 R)
• M37: 14,640,844 km (0.094 R)
• M38: 15,885,349 km (0.071 R)
• M39: 16,011,610 km (0.113 R)
• M40: 16,180,655 km (0.062 R)
• M41: 16,477,757 km (0.089 R)
• M42: 17,206,747 km (0.071 R)
• M43: 17,423,215 km (0.061 R)
• M44: 18,253,932 km (0.091 R)
• M45: 19,682,293 km (0.117 R)
• M46: 20,181,650 km (0.104 R)
• M47: 21,285,533 km (0.088 R)
• M48: 21,611,208 km (0.108 R)
• M49: 22,409,013 km (0.092 R)
• M50: 22,645,378 km (0.119 R)
• M51: 22,930,362 km (0.045 R)
• M52: 23,647,833 km (0.09 R)
• M53: 23,936,856 km (0.06 R)
• M54: 25,251,971 km (0.051 R)
• M55: 25,448,842 km (0.1 R)
• M56: 25,695,678 km (0.099 R)
• M57: 26,941,529 km (0.076 R)
• M58: 27,901,499 km (0.104 R)
• M59: 28,769,915 km (0.116 R)
• M60: 30,167,458 km (0.091 R)
• M61: 32,065,107 km (0.114 R)
• M62: 32,278,284 km (0.089 R)
• M63: 32,438,503 km (0.061 R)
• M64: 32,813,545 km (0.103 R)
• M65: 33,297,644 km (0.117 R)
• M66: 34,273,022 km (0.092 R)
• M67: 34,873,807 km (0.109 R)
• M68: 35,478,033 km (0.058 R)
• M69: 35,698,540 km (0.088 R)
• M70: 36,196,551 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.2

Radius: 13.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 9.61 AU - 9.73 AU

Year: 10929 Days

Day: 5.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 86,907,430 km

• M1: 197,918 km (0.119 R)
• M2: 841,338 km (0.104 R)
• M3: 999,912 km (0.117 R)
• M4: 1,147,715 km (0.086 R)
• M5: 1,326,036 km (0.08 R)
• M6: 1,562,400 km (0.107 R)
• M7: 1,787,395 km (0.085 R)
• M8: 1,890,917 km (0.057 R)
• M9: 2,077,166 km (0.06 R)
• M10: 2,214,048 km (0.052 R)
• M11: 2,297,674 km (0.088 R)
• M12: 2,382,346 km (0.045 R)
• M13: 3,005,272 km (0.105 R)
• M14: 3,129,587 km (0.064 R)
• M15: 4,048,268 km (0.092 R)
• M16: 4,186,048 km (0.077 R)
• M17: 4,753,173 km (0.114 R)
• M18: 4,898,732 km (0.064 R)
• M19: 6,355,516 km (0.104 R)
• M20: 6,760,029 km (0.103 R)
• M21: 7,551,850 km (0.114 R)
• M22: 8,328,861 km (0.073 R)
• M23: 8,416,825 km (0.115 R)
• M24: 8,727,091 km (0.114 R)
• M25: 9,222,260 km (0.117 R)
• M26: 9,358,843 km (0.119 R)
• M27: 9,634,252 km (0.048 R)
• M28: 9,726,554 km (0.095 R)
• M29: 10,052,229 km (0.118 R)
• M30: 10,666,627 km (0.094 R)
• M31: 10,810,241 km (0.111 R)
• M32: 11,099,115 km (0.067 R)
• M33: 11,488,518 km (0.069 R)
• M34: 11,586,505 km (0.088 R)
• M35: 12,481,399 km (0.102 R)
• M36: 14,390,118 km (0.051 R)
• M37: 14,655,056 km (0.105 R)
• M38: 15,513,449 km (0.094 R)
• M39: 16,887,505 km (0.035 R)
• M40: 16,999,105 km (0.115 R)
• M41: 17,279,152 km (0.108 R)
• M42: 18,357,454 km (0.108 R)
• M43: 19,574,433 km (0.103 R)
• M44: 20,400,362 km (0.075 R)
• M45: 20,997,258 km (0.084 R)
• M46: 23,131,272 km (0.1 R)
• M47: 23,566,302 km (0.093 R)
• M48: 24,381,461 km (0.084 R)
• M49: 24,571,001 km (0.103 R)
• M50: 24,824,271 km (0.034 R)
• M51: 25,397,530 km (0.081 R)
• M52: 26,621,988 km (0.059 R)
• M53: 26,817,064 km (0.1 R)
• M54: 28,727,279 km (0.111 R)
• M55: 29,128,052 km (0.106 R)
• M56: 30,205,605 km (0.105 R)
• M57: 30,885,827 km (0.115 R)
• M58: 31,022,410 km (0.119 R)
• M59: 31,570,985 km (0.073 R)
• M60: 31,846,395 km (0.073 R)
• M61: 32,191,966 km (0.094 R)
• M62: 32,469,171 km (0.053 R)
• M63: 33,235,860 km (0.119 R)
• M64: 33,375,883 km (0.114 R)
• M65: 34,078,993 km (0.092 R)
• M66: 35,071,575 km (0.116 R)
• M67: 35,571,382 km (0.075 R)
• M68: 36,217,495 km (0.119 R)
• M69: 36,433,813 km (0.109 R)
• M70: 39,209,752 km (0.105 R)
• M71: 40,324,256 km (0.119 R)
• M72: 41,449,082 km (0.065 R)
• M73: 41,901,915 km (0.108 R)
• M74: 42,584,231 km (0.102 R)
• M75: 44,190,613 km (0.074 R)
• M76: 45,117,521 km (0.083 R)
• M77: 46,206,893 km (0.076 R)
• M78: 46,519,702 km (0.087 R)
• M79: 46,911,798 km (0.096 R)
• M80: 47,541,306 km (0.119 R)
• M81: 48,490,953 km (0.107 R)
• M82: 50,248,130 km (0.119 R)
• M83: 51,620,241 km (0.066 R)
• M84: 52,107,482 km (0.032 R)
• M85: 52,351,625 km (0.115 R)
• M86: 52,514,687 km (0.08 R)
• M87: 52,759,429 km (0.063 R)
• M88: 53,496,199 km (0.051 R)
• M89: 55,477,323 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.4

Radius: 3.4

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 11.34 AU - 17.6 AU

Year: 20005 Days

Day: 23 Hours

Environment

Temp: -196 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 86,907,430 km

• M1: 67,319 km (0.089 R)
• M2: 172,187 km (0.107 R)
• M3: 717,621 km (0.1 R)
• M4: 972,536 km (0.112 R)
• M5: 1,707,660 km (0.093 R)
• M6: 1,817,465 km (0.094 R)
• M7: 1,974,991 km (0.111 R)
• M8: 2,623,049 km (0.042 R)
• M9: 3,061,969 km (0.103 R)
• M10: 3,412,776 km (0.052 R)
• M11: 4,358,983 km (0.068 R)
• M12: 4,569,617 km (0.112 R)
• M13: 4,630,353 km (0.104 R)
• M14: 5,189,251 km (0.119 R)
• M15: 5,316,409 km (0.1 R)
• M16: 5,573,568 km (0.064 R)
• M17: 6,268,001 km (0.077 R)
• M18: 6,335,470 km (0.069 R)
• M19: 6,573,779 km (0.092 R)
• M20: 7,520,285 km (0.065 R)
• M21: 9,227,945 km (0.077 R)
• M22: 10,045,647 km (0.09 R)
• M23: 10,563,255 km (0.101 R)
• M24: 10,603,497 km (0.1 R)
• M25: 11,008,010 km (0.111 R)
• M26: 11,130,381 km (0.095 R)
• M27: 11,171,371 km (0.073 R)
• M28: 12,591,054 km (0.113 R)
• M29: 12,676,325 km (0.112 R)
• M30: 13,321,990 km (0.086 R)
• M31: 13,626,870 km (0.057 R)
• M32: 14,555,424 km (0.079 R)
• M33: 15,778,985 km (0.105 R)
• M34: 16,940,912 km (0.102 R)
• M35: 17,698,924 km (0.094 R)
• M36: 19,198,643 km (0.073 R)
• M37: 19,938,853 km (0.079 R)
• M38: 20,738,753 km (0.093 R)
• M39: 22,524,503 km (0.087 R)
• M40: 22,576,263 km (0.091 R)
• M41: 23,357,164 km (0.092 R)
• M42: 24,891,739 km (0.053 R)
• M43: 25,159,669 km (0.112 R)
• M44: 25,320,786 km (0.104 R)
• M45: 26,567,834 km (0.064 R)
• M46: 27,447,170 km (0.117 R)
• M47: 28,057,081 km (0.077 R)
• M48: 30,141,577 km (0.074 R)
• M49: 31,635,761 km (0.1 R)
• M50: 32,508,814 km (0.042 R)
• M51: 33,330,705 km (0.061 R)
• M52: 33,566,770 km (0.059 R)
• M53: 34,755,475 km (0.085 R)
• M54: 34,815,314 km (0.101 R)
• M55: 35,054,820 km (0.083 R)
• M56: 35,234,936 km (0.108 R)
• M57: 35,475,340 km (0.092 R)
• M58: 38,218,217 km (0.045 R)
• M59: 39,023,203 km (0.084 R)
• M60: 39,209,752 km (0.115 R)
• M61: 39,396,599 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.4

Radius: 5.7

Gravity: 18.66 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 15.66 AU - 18.76 AU

Year: 25948 Days

Day: 22.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 86,907,430 km

• M1: 522,097 km (0.055 R)
• M2: 714,180 km (0.081 R)
• M3: 845,228 km (0.025 R)
• M4: 927,656 km (0.061 R)
• M5: 1,070,971 km (0.104 R)
• M6: 1,221,616 km (0.092 R)
• M7: 1,444,068 km (0.085 R)
• M8: 1,610,720 km (0.106 R)
• M9: 1,783,655 km (0.079 R)
• M10: 1,926,222 km (0.047 R)
• M11: 2,337,766 km (0.072 R)
• M12: 2,734,948 km (0.105 R)
• M13: 3,816,840 km (0.12 R)
• M14: 3,954,769 km (0.11 R)
• M15: 4,474,173 km (0.031 R)
• M16: 4,619,732 km (0.119 R)
• M17: 5,115,649 km (0.07 R)
• M18: 5,166,213 km (0.101 R)
• M19: 5,732,890 km (0.109 R)
• M20: 6,103,892 km (0.114 R)
• M21: 6,319,313 km (0.103 R)
• M22: 6,373,617 km (0.078 R)
• M23: 6,813,136 km (0.06 R)
• M24: 7,606,005 km (0.085 R)
• M25: 7,896,075 km (0.116 R)
• M26: 9,963,368 km (0.112 R)
• M27: 10,925,432 km (0.096 R)
• M28: 11,318,575 km (0.088 R)
• M29: 12,730,480 km (0.108 R)
• M30: 12,936,775 km (0.1 R)
• M31: 14,055,169 km (0.074 R)
• M32: 14,841,904 km (0.119 R)
• M33: 15,204,230 km (0.118 R)
• M34: 15,789,906 km (0.115 R)
• M35: 16,159,861 km (0.028 R)
• M36: 16,308,561 km (0.064 R)
• M37: 16,757,505 km (0.109 R)
• M38: 16,908,150 km (0.114 R)
• M39: 17,210,487 km (0.107 R)
• M40: 18,671,460 km (0.028 R)
• M41: 20,814,898 km (0.108 R)
• M42: 22,951,305 km (0.089 R)
• M43: 23,118,556 km (0.062 R)
• M44: 23,707,074 km (0.085 R)
• M45: 26,371,561 km (0.099 R)
• M46: 27,694,605 km (0.031 R)
• M47: 27,872,626 km (0.104 R)
• M48: 28,140,407 km (0.077 R)
• M49: 29,129,398 km (0.12 R)
• M50: 30,404,570 km (0.062 R)
• M51: 30,956,587 km (0.089 R)
• M52: 31,604,944 km (0.069 R)
• M53: 31,884,093 km (0.073 R)
• M54: 34,146,911 km (0.078 R)
• M55: 35,297,767 km (0.043 R)
• M56: 35,587,389 km (0.119 R)
• M57: 37,145,600 km (0.049 R)
• M58: 38,427,803 km (0.062 R)
• M59: 38,626,469 km (0.118 R)
• M60: 40,025,957 km (0.11 R)
• M61: 40,227,316 km (0.106 R)
• M62: 41,849,556 km (0.071 R)
• M63: 43,803,753 km (0.117 R)
• M64: 44,739,786 km (0.093 R)
• M65: 45,157,912 km (0.11 R)
• M66: 46,208,837 km (0.108 R)
• M67: 47,907,073 km (0.07 R)
• M68: 48,441,885 km (0.113 R)
• M69: 49,841,822 km (0.104 R)
• M70: 50,601,181 km (0.045 R)
• M71: 51,145,866 km (0.1 R)
• M72: 52,461,131 km (0.047 R)
• M73: 53,122,802 km (0.055 R)
• M74: 53,898,318 km (0.119 R)
• M75: 56,811,587 km (0.113 R)
• M76: 58,515,506 km (0.074 R)
• M77: 59,660,678 km (0.056 R)
• M78: 59,890,610 km (0.036 R)
• M79: 60,813,330 km (0.089 R)
• M80: 63,961,766 km (0.072 R)
• M81: 66,923,954 km (0.111 R)
• M82: 68,121,335 km (0.083 R)
• M83: 68,843,145 km (0.053 R)
• M84: 69,084,297 km (0.107 R)
• M85: 69,809,547 km (0.096 R)
• M86: 70,537,191 km (0.029 R)
• M87: 71,877,887 km (0.09 R)
• M88: 77,323,848 km (0.1 R)
• M89: 79,969,487 km (0.085 R)
• M90: 81,367,179 km (0.106 R)
• M91: 81,494,637 km (0.062 R)
• M92: 81,877,308 km (0.062 R)
• M93: 82,772,801 km (0.048 R)
• M94: 85,867,532 km (0.065 R)
• M95: 86,256,935 km (0.119 R)

Kuiper Belt

Range: 30.2 - 60.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 438 - 16,752 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit