🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.47 AU - 0.67 AU

Year: 159 Days

Day: 46.4 Hours

Environment

Temp: 146 °C

Axial Tilt: 32.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.93 AU - 1.37 AU

Year: 455 Days

Day: 18.3 Hours

Environment

Temp: 17 °C

Axial Tilt: 124.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.72 AU - 1.82 AU

Year: 869 Days

Day: 16 Hours

Environment

Temp: -49 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,563,441 km

• M1: 38,447 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.72 AU - 2.84 AU

Year: 1710 Days

Day: 34.5 Hours

Environment

Temp: -101 °C

Axial Tilt: 160.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.8

Radius: 9

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 4.54 AU - 7.52 AU

Year: 5463 Days

Day: 7.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 73,563,441 km

• M1: 194,776 km (0.112 R)
• M2: 279,598 km (0.067 R)
• M3: 525,238 km (0.053 R)
• M4: 696,677 km (0.103 R)
• M5: 784,491 km (0.09 R)
• M6: 845,378 km (0.08 R)
• M7: 983,008 km (0.12 R)
• M8: 1,197,830 km (0.11 R)
• M9: 1,365,978 km (0.078 R)
• M10: 1,580,651 km (0.067 R)
• M11: 1,685,519 km (0.115 R)
• M12: 1,806,394 km (0.11 R)
• M13: 2,085,245 km (0.045 R)
• M14: 2,303,658 km (0.085 R)
• M15: 2,393,117 km (0.099 R)
• M16: 2,668,527 km (0.108 R)
• M17: 2,921,946 km (0.117 R)
• M18: 2,986,572 km (0.095 R)
• M19: 3,350,394 km (0.056 R)
• M20: 3,676,068 km (0.095 R)
• M21: 4,229,431 km (0.051 R)
• M22: 4,450,537 km (0.053 R)
• M23: 4,827,673 km (0.069 R)
• M24: 4,923,715 km (0.031 R)
• M25: 5,000,907 km (0.063 R)
• M26: 5,999,623 km (0.103 R)
• M27: 6,082,051 km (0.09 R)
• M28: 6,564,055 km (0.086 R)
• M29: 6,906,634 km (0.112 R)
• M30: 7,631,436 km (0.12 R)
• M31: 7,721,045 km (0.106 R)
• M32: 7,878,422 km (0.042 R)
• M33: 7,946,340 km (0.12 R)
• M34: 8,565,525 km (0.095 R)
• M35: 8,963,456 km (0.118 R)
• M36: 9,200,269 km (0.059 R)
• M37: 9,704,414 km (0.059 R)
• M38: 9,898,891 km (0.118 R)
• M39: 10,143,783 km (0.096 R)
• M40: 10,489,952 km (0.112 R)
• M41: 10,764,764 km (0.063 R)
• M42: 11,117,815 km (0.106 R)
• M43: 11,577,379 km (0.045 R)
• M44: 11,835,436 km (0.106 R)
• M45: 11,913,226 km (0.098 R)
• M46: 12,436,221 km (0.117 R)
• M47: 12,568,016 km (0.104 R)
• M48: 13,369,263 km (0.102 R)
• M49: 13,803,246 km (0.066 R)
• M50: 14,022,108 km (0.117 R)
• M51: 14,546,299 km (0.1 R)
• M52: 15,161,295 km (0.115 R)
• M53: 16,042,128 km (0.054 R)
• M54: 16,387,699 km (0.112 R)
• M55: 16,445,444 km (0.038 R)
• M56: 16,561,232 km (0.077 R)
• M57: 16,764,685 km (0.1 R)
• M58: 17,232,628 km (0.103 R)
• M59: 17,972,389 km (0.079 R)
• M60: 18,032,079 km (0.111 R)
• M61: 20,191,524 km (0.03 R)
• M62: 20,439,856 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.1

Radius: 15

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 7.24 AU - 11.74 AU

Year: 10786 Days

Day: 6 Hours

Environment

Temp: -176 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 73,563,441 km

• M1: 205,996 km (0.103 R)
• M2: 458,368 km (0.067 R)
• M3: 578,345 km (0.117 R)
• M4: 677,379 km (0.118 R)
• M5: 1,036,414 km (0.058 R)
• M6: 1,362,837 km (0.065 R)
• M7: 1,697,786 km (0.101 R)
• M8: 1,824,047 km (0.059 R)
• M9: 2,113,369 km (0.078 R)
• M10: 2,305,602 km (0.091 R)
• M11: 2,561,415 km (0.098 R)
• M12: 3,352,937 km (0.109 R)
• M13: 3,481,292 km (0.095 R)
• M14: 3,709,878 km (0.083 R)
• M15: 4,709,939 km (0.1 R)
• M16: 6,062,155 km (0.106 R)
• M17: 6,498,232 km (0.114 R)
• M18: 7,109,489 km (0.094 R)
• M19: 7,233,955 km (0.1 R)
• M20: 7,611,839 km (0.088 R)
• M21: 7,953,072 km (0.062 R)
• M22: 8,430,738 km (0.089 R)
• M23: 8,695,227 km (0.059 R)
• M24: 9,007,437 km (0.102 R)
• M25: 9,642,630 km (0.12 R)
• M26: 11,100,760 km (0.095 R)
• M27: 12,677,372 km (0.081 R)
• M28: 12,879,329 km (0.045 R)
• M29: 13,698,079 km (0.066 R)
• M30: 15,385,842 km (0.107 R)
• M31: 15,981,241 km (0.094 R)
• M32: 16,144,901 km (0.082 R)
• M33: 16,639,322 km (0.09 R)
• M34: 18,494,486 km (0.102 R)
• M35: 18,723,819 km (0.107 R)
• M36: 19,069,540 km (0.044 R)
• M37: 19,359,311 km (0.111 R)
• M38: 19,533,892 km (0.095 R)
• M39: 19,708,921 km (0.043 R)
• M40: 21,608,814 km (0.069 R)
• M41: 22,275,422 km (0.052 R)
• M42: 22,519,566 km (0.071 R)
• M43: 24,065,061 km (0.052 R)
• M44: 24,629,943 km (0.11 R)
• M45: 24,819,184 km (0.03 R)
• M46: 25,199,013 km (0.103 R)
• M47: 25,326,172 km (0.063 R)
• M48: 25,772,572 km (0.111 R)
• M49: 27,453,603 km (0.106 R)
• M50: 28,770,662 km (0.054 R)
• M51: 29,303,231 km (0.117 R)
• M52: 30,513,627 km (0.112 R)
• M53: 34,100,984 km (0.107 R)
• M54: 34,806,039 km (0.076 R)
• M55: 35,444,672 km (0.104 R)
• M56: 35,587,089 km (0.107 R)
• M57: 36,661,651 km (0.098 R)
• M58: 38,476,124 km (0.03 R)
• M59: 39,136,449 km (0.118 R)
• M60: 40,022,816 km (0.053 R)
• M61: 41,214,812 km (0.085 R)
• M62: 41,514,756 km (0.098 R)
• M63: 42,267,532 km (0.085 R)
• M64: 42,872,955 km (0.113 R)
• M65: 43,481,369 km (0.11 R)
• M66: 44,476,045 km (0.073 R)
• M67: 44,937,555 km (0.093 R)
• M68: 47,819,259 km (0.113 R)
• M69: 48,292,137 km (0.081 R)
• M70: 49,242,533 km (0.04 R)
• M71: 50,199,211 km (0.068 R)
• M72: 50,519,500 km (0.08 R)
• M73: 50,840,388 km (0.083 R)
• M74: 53,595,681 km (0.109 R)
• M75: 54,004,981 km (0.08 R)
• M76: 54,415,178 km (0.109 R)
• M77: 54,991,429 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 992.2

Radius: 3.9

Gravity: 65.23 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 9.97 AU - 14.67 AU

Year: 15955 Days

Day: 23 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 73,563,441 km

• M1: 67,169 km (0.099 R)
• M2: 289,921 km (0.097 R)
• M3: 358,736 km (0.078 R)
• M4: 802,593 km (0.076 R)
• M5: 951,442 km (0.066 R)
• M6: 1,331,870 km (0.115 R)
• M7: 2,080,009 km (0.057 R)
• M8: 3,557,288 km (0.117 R)
• M9: 4,304,679 km (0.119 R)
• M10: 5,512,532 km (0.089 R)
• M11: 5,699,828 km (0.077 R)
• M12: 5,794,374 km (0.079 R)
• M13: 7,425,889 km (0.044 R)
• M14: 7,736,903 km (0.061 R)
• M15: 9,132,800 km (0.111 R)
• M16: 9,298,854 km (0.057 R)
• M17: 9,802,849 km (0.116 R)
• M18: 9,972,792 km (0.105 R)
• M19: 10,086,636 km (0.11 R)
• M20: 12,883,219 km (0.066 R)
• M21: 13,256,466 km (0.071 R)
• M22: 13,886,422 km (0.101 R)
• M23: 14,204,916 km (0.108 R)
• M24: 15,833,738 km (0.095 R)
• M25: 15,900,010 km (0.069 R)
• M26: 16,099,723 km (0.067 R)
• M27: 16,771,268 km (0.101 R)
• M28: 18,072,171 km (0.108 R)
• M29: 18,769,895 km (0.107 R)
• M30: 20,119,418 km (0.111 R)
• M31: 20,479,799 km (0.052 R)
• M32: 20,552,055 km (0.071 R)
• M33: 20,624,610 km (0.051 R)
• M34: 21,647,111 km (0.105 R)
• M35: 21,720,863 km (0.094 R)
• M36: 23,287,153 km (0.104 R)
• M37: 23,817,327 km (0.118 R)
• M38: 24,198,353 km (0.087 R)
• M39: 24,966,688 km (0.089 R)
• M40: 27,398,551 km (0.083 R)
• M41: 28,038,231 km (0.092 R)
• M42: 28,279,533 km (0.107 R)
• M43: 29,414,083 km (0.076 R)
• M44: 29,577,294 km (0.06 R)
• M45: 29,740,954 km (0.103 R)
• M46: 29,822,784 km (0.111 R)
• M47: 30,233,580 km (0.102 R)
• M48: 30,563,443 km (0.025 R)
• M49: 30,728,749 km (0.066 R)
• M50: 31,143,584 km (0.027 R)
• M51: 32,990,519 km (0.074 R)
• M52: 33,245,135 km (0.079 R)
• M53: 33,500,349 km (0.048 R)
• M54: 33,841,731 km (0.116 R)
• M55: 35,045,396 km (0.083 R)
• M56: 35,478,781 km (0.116 R)
• M57: 35,565,697 km (0.086 R)
• M58: 36,001,027 km (0.106 R)
• M59: 37,053,298 km (0.114 R)
• M60: 38,471,935 km (0.115 R)
• M61: 39,187,910 km (0.099 R)
• M62: 39,547,544 km (0.116 R)
• M63: 40,632,876 km (0.064 R)
• M64: 42,648,259 km (0.072 R)
• M65: 42,833,012 km (0.113 R)
• M66: 43,110,666 km (0.098 R)
• M67: 44,134,214 km (0.116 R)
• M68: 46,489,633 km (0.118 R)
• M69: 46,965,653 km (0.104 R)
• M70: 48,499,630 km (0.084 R)
• M71: 51,223,508 km (0.061 R)
• M72: 52,010,692 km (0.054 R)
• M73: 52,307,045 km (0.047 R)
• M74: 54,096,385 km (0.083 R)
• M75: 57,836,930 km (0.11 R)
• M76: 59,789,931 km (0.092 R)
• M77: 59,893,303 km (0.088 R)
• M78: 59,996,824 km (0.027 R)
• M79: 60,100,346 km (0.095 R)
• M80: 60,203,868 km (0.103 R)
• M81: 60,514,882 km (0.072 R)
• M82: 60,826,494 km (0.088 R)
• M83: 65,777,286 km (0.094 R)
• M84: 66,525,575 km (0.116 R)
• M85: 67,814,959 km (0.081 R)
• M86: 68,679,186 km (0.03 R)
• M87: 69,982,183 km (0.042 R)
• M88: 70,746,179 km (0.09 R)
• M89: 71,622,524 km (0.066 R)
• M90: 71,842,283 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 69.7

Radius: 6.3

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 12.36 AU - 18.7 AU

Year: 22581 Days

Day: 21.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 73,563,441 km

• M1: 96,191 km (0.068 R)
• M2: 268,229 km (0.045 R)
• M3: 308,770 km (0.089 R)
• M4: 560,693 km (0.107 R)
• M5: 715,377 km (0.062 R)
• M6: 997,519 km (0.032 R)
• M7: 1,404,874 km (0.097 R)
• M8: 1,577,360 km (0.114 R)
• M9: 1,676,095 km (0.085 R)
• M10: 1,777,073 km (0.089 R)
• M11: 2,156,902 km (0.084 R)
• M12: 2,333,727 km (0.078 R)
• M13: 2,378,606 km (0.084 R)
• M14: 2,469,412 km (0.044 R)
• M15: 2,631,127 km (0.05 R)
• M16: 2,940,645 km (0.109 R)
• M17: 2,989,265 km (0.116 R)
• M18: 3,038,183 km (0.079 R)
• M19: 3,087,401 km (0.057 R)
• M20: 3,211,567 km (0.032 R)
• M21: 3,593,939 km (0.084 R)
• M22: 3,724,538 km (0.104 R)
• M23: 3,963,745 km (0.049 R)
• M24: 4,126,059 km (0.07 R)
• M25: 4,825,429 km (0.117 R)
• M26: 4,969,791 km (0.062 R)
• M27: 5,203,612 km (0.102 R)
• M28: 5,381,335 km (0.082 R)
• M29: 5,530,932 km (0.094 R)
• M30: 5,803,799 km (0.052 R)
• M31: 6,425,827 km (0.096 R)
• M32: 7,068,948 km (0.091 R)
• M33: 7,597,926 km (0.075 R)
• M34: 7,698,606 km (0.055 R)
• M35: 9,011,177 km (0.115 R)
• M36: 9,224,803 km (0.115 R)
• M37: 9,475,978 km (0.046 R)
• M38: 9,620,489 km (0.049 R)
• M39: 10,992,152 km (0.118 R)
• M40: 11,068,148 km (0.111 R)
• M41: 11,642,753 km (0.116 R)
• M42: 12,109,349 km (0.115 R)
• M43: 12,741,101 km (0.105 R)
• M44: 12,980,906 km (0.085 R)
• M45: 13,262,300 km (0.092 R)
• M46: 13,995,479 km (0.054 R)
• M47: 14,118,897 km (0.12 R)
• M48: 14,699,786 km (0.11 R)
• M49: 14,825,299 km (0.112 R)
• M50: 15,756,545 km (0.059 R)
• M51: 16,272,508 km (0.089 R)
• M52: 16,402,359 km (0.094 R)
• M53: 16,445,593 km (0.077 R)
• M54: 16,793,857 km (0.101 R)
• M55: 18,661,736 km (0.051 R)
• M56: 19,712,063 km (0.078 R)
• M57: 19,758,288 km (0.092 R)
• M58: 21,679,275 km (0.104 R)
• M59: 22,061,048 km (0.102 R)
• M60: 22,108,920 km (0.107 R)
• M61: 23,610,134 km (0.103 R)
• M62: 24,397,767 km (0.072 R)
• M63: 27,530,347 km (0.096 R)
• M64: 28,099,118 km (0.114 R)
• M65: 28,306,909 km (0.107 R)
• M66: 28,828,706 km (0.073 R)
• M67: 28,881,066 km (0.091 R)
• M68: 28,985,934 km (0.089 R)
• M69: 30,040,898 km (0.111 R)
• M70: 30,093,856 km (0.095 R)
• M71: 32,569,102 km (0.099 R)
• M72: 33,060,980 km (0.026 R)
• M73: 33,335,193 km (0.116 R)
• M74: 33,830,960 km (0.111 R)
• M75: 34,718,075 km (0.107 R)
• M76: 34,996,926 km (0.095 R)
• M77: 35,276,524 km (0.09 R)
• M78: 36,515,494 km (0.116 R)
• M79: 37,083,218 km (0.042 R)
• M80: 37,596,787 km (0.071 R)
• M81: 38,285,237 km (0.026 R)
• M82: 38,515,617 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 372.2

Radius: 7.8

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 15.77 AU - 18.17 AU

Year: 25793 Days

Day: 17.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 73,563,441 km

• M1: 422,913 km (0.079 R)
• M2: 498,011 km (0.089 R)
• M3: 845,527 km (0.069 R)
• M4: 1,123,181 km (0.06 R)
• M5: 1,342,641 km (0.071 R)
• M6: 2,214,348 km (0.073 R)
• M7: 2,525,511 km (0.109 R)
• M8: 2,632,474 km (0.102 R)
• M9: 3,422,051 km (0.108 R)
• M10: 4,322,481 km (0.052 R)
• M11: 5,754,282 km (0.104 R)
• M12: 7,472,114 km (0.108 R)
• M13: 7,833,543 km (0.09 R)
• M14: 7,937,813 km (0.097 R)
• M15: 9,225,252 km (0.08 R)
• M16: 10,289,790 km (0.086 R)
• M17: 11,570,199 km (0.081 R)
• M18: 12,532,711 km (0.081 R)
• M19: 12,654,783 km (0.043 R)
• M20: 12,777,304 km (0.033 R)
• M21: 13,271,426 km (0.118 R)
• M22: 13,583,337 km (0.034 R)
• M23: 13,897,642 km (0.046 R)
• M24: 14,533,583 km (0.066 R)
• M25: 15,114,022 km (0.047 R)
• M26: 15,701,942 km (0.036 R)
• M27: 19,032,290 km (0.093 R)
• M28: 19,454,605 km (0.066 R)
• M29: 19,525,364 km (0.095 R)
• M30: 20,093,986 km (0.101 R)
• M31: 20,667,993 km (0.07 R)
• M32: 20,884,611 km (0.109 R)
• M33: 22,942,928 km (0.101 R)
• M34: 23,092,376 km (0.027 R)
• M35: 23,317,222 km (0.111 R)
• M36: 24,452,221 km (0.092 R)
• M37: 25,682,663 km (0.052 R)
• M38: 26,071,319 km (0.117 R)
• M39: 26,461,919 km (0.073 R)
• M40: 26,933,152 km (0.05 R)
• M41: 29,330,757 km (0.087 R)
• M42: 29,655,534 km (0.087 R)
• M43: 30,063,338 km (0.086 R)
• M44: 30,637,195 km (0.113 R)
• M45: 31,049,337 km (0.08 R)
• M46: 31,712,654 km (0.113 R)
• M47: 31,879,157 km (0.112 R)
• M48: 33,815,252 km (0.081 R)
• M49: 34,497,568 km (0.061 R)
• M50: 34,926,316 km (0.071 R)
• M51: 35,012,185 km (0.111 R)
• M52: 36,658,809 km (0.085 R)
• M53: 37,447,638 km (0.104 R)
• M54: 38,065,029 km (0.108 R)
• M55: 38,596,849 km (0.077 R)
• M56: 39,578,211 km (0.047 R)
• M57: 40,207,121 km (0.068 R)
• M58: 41,020,484 km (0.092 R)
• M59: 41,656,724 km (0.119 R)
• M60: 42,479,662 km (0.063 R)
• M61: 44,141,694 km (0.119 R)
• M62: 44,513,894 km (0.058 R)
• M63: 45,824,820 km (0.099 R)
• M64: 48,580,413 km (0.102 R)
• M65: 49,157,112 km (0.11 R)
• M66: 51,291,425 km (0.075 R)
• M67: 51,389,113 km (0.039 R)
• M68: 55,148,657 km (0.099 R)
• M69: 56,051,929 km (0.107 R)
• M70: 56,152,608 km (0.096 R)
• M71: 56,858,859 km (0.073 R)
• M72: 58,688,741 km (0.076 R)
• M73: 58,791,066 km (0.08 R)
• M74: 59,098,040 km (0.105 R)
• M75: 59,713,636 km (0.1 R)
• M76: 59,816,559 km (0.116 R)
• M77: 60,434,697 km (0.089 R)
• M78: 61,469,615 km (0.038 R)
• M79: 62,301,679 km (0.119 R)
• M80: 64,187,659 km (0.104 R)
• M81: 64,292,976 km (0.095 R)
• M82: 65,031,990 km (0.091 R)
• M83: 65,137,755 km (0.117 R)
• M84: 65,667,481 km (0.118 R)
• M85: 67,265,486 km (0.119 R)
• M86: 68,230,392 km (0.065 R)
• M87: 68,445,364 km (0.092 R)
• M88: 68,660,636 km (0.08 R)
• M89: 69,091,926 km (0.065 R)
• M90: 69,632,124 km (0.088 R)
• M91: 72,793,426 km (0.111 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 11,246 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit