Star System Generated (Seed: 1766656123)
Star Details
Spectral Class: M5V
Temperature: 3,050 K
Mass: 0.3 sol
Luminosity: 0.01 lux
Habitable Zone (HZ)
Inner Boundary: 0.1 AU
Outer Boundary: 0.14 AU
Physical Limits
Snow Line: 0.48 AU
Max System Radius: 11 AU
Planetary System (7 Planets)
Planet 1 - Gas Giant
Semi-Major Axis: 0.79 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 903
Radius: 10.5
Gravity: 8.19 G
Time & Orbit
Eccentricity (e): 0.028
Orbit Range: 0.77 AU - 0.81 AU
Year: 468 Days
Day: 5.6 Hours
Environment
Temp: -157 °C
Axial Tilt: 12.9 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (47)
Outer Limit: 80,508,338 km
- M1: 131,646 km (0.034 R)
- M2: 214,673 km (0.093 R)
- M3: 287,826 km (0.118 R)
- M4: 388,356 km (0.114 R)
- M5: 515,813 km (0.12 R)
- M6: 583,581 km (0.115 R)
- M7: 659,128 km (0.062 R)
- M8: 738,565 km (0.08 R)
- M9: 957,726 km (0.089 R)
- M10: 1,059,751 km (0.108 R)
- M11: 1,209,050 km (0.106 R)
- M12: 1,314,666 km (0.087 R)
- M13: 1,429,108 km (0.086 R)
- M14: 1,517,371 km (0.11 R)
- M15: 1,631,814 km (0.084 R)
- M16: 1,774,231 km (0.036 R)
- M17: 1,888,823 km (0.071 R)
- M18: 1,960,031 km (0.09 R)
- M19: 2,247,259 km (0.037 R)
- M20: 2,316,074 km (0.099 R)
- M21: 2,392,668 km (0.049 R)
- M22: 2,484,222 km (0.079 R)
- M23: 2,605,696 km (0.043 R)
- M24: 2,773,395 km (0.065 R)
- M25: 2,967,274 km (0.069 R)
- M26: 3,065,859 km (0.119 R)
- M27: 3,188,828 km (0.095 R)
- M28: 3,400,060 km (0.1 R)
- M29: 3,885,954 km (0.092 R)
- M30: 4,078,188 km (0.101 R)
- M31: 4,247,832 km (0.044 R)
- M32: 4,367,959 km (0.105 R)
- M33: 4,497,959 km (0.109 R)
- M34: 4,699,767 km (0.029 R)
- M35: 4,851,010 km (0.063 R)
- M36: 5,094,406 km (0.058 R)
- M37: 5,167,410 km (0.111 R)
- M38: 5,378,941 km (0.119 R)
- M39: 5,462,417 km (0.098 R)
- M40: 5,555,915 km (0.099 R)
- M41: 5,640,438 km (0.076 R)
- M42: 5,725,260 km (0.089 R)
- M43: 5,973,144 km (0.092 R)
- M44: 6,292,685 km (0.034 R)
- M45: 6,439,889 km (0.115 R)
- M46: 6,627,934 km (0.108 R)
- M47: 6,707,520 km (0.112 R)
Planet 2 - Gas Giant
Semi-Major Axis: 0.79 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 838
Radius: 12.5
Gravity: 5.36 G
Time & Orbit
Eccentricity (e): 0.201
Orbit Range: 0.63 AU - 0.95 AU
Year: 468 Days
Day: 6.3 Hours
Environment
Temp: -172 °C
Axial Tilt: 6.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (44)
Outer Limit: 80,508,338 km
- M1: 165,156 km (0.1 R)
- M2: 248,632 km (0.054 R)
- M3: 328,218 km (0.107 R)
- M4: 599,289 km (0.107 R)
- M5: 698,472 km (0.027 R)
- M6: 882,328 km (0.119 R)
- M7: 973,433 km (0.101 R)
- M8: 1,114,055 km (0.11 R)
- M9: 1,208,302 km (0.1 R)
- M10: 1,310,926 km (0.108 R)
- M11: 1,433,596 km (0.106 R)
- M12: 1,531,284 km (0.067 R)
- M13: 1,697,188 km (0.061 R)
- M14: 1,825,692 km (0.113 R)
- M15: 1,919,640 km (0.074 R)
- M16: 2,021,516 km (0.104 R)
- M17: 2,125,487 km (0.096 R)
- M18: 2,264,613 km (0.06 R)
- M19: 2,434,406 km (0.1 R)
- M20: 2,538,377 km (0.089 R)
- M21: 2,665,086 km (0.075 R)
- M22: 2,772,497 km (0.06 R)
- M23: 3,095,629 km (0.088 R)
- M24: 3,216,354 km (0.08 R)
- M25: 3,323,167 km (0.104 R)
- M26: 3,454,514 km (0.096 R)
- M27: 3,714,665 km (0.049 R)
- M28: 3,810,856 km (0.109 R)
- M29: 3,907,796 km (0.08 R)
- M30: 4,120,973 km (0.072 R)
- M31: 4,254,115 km (0.111 R)
- M32: 4,414,035 km (0.057 R)
- M33: 4,705,302 km (0.079 R)
- M34: 4,941,068 km (0.089 R)
- M35: 5,100,539 km (0.116 R)
- M36: 5,352,013 km (0.055 R)
- M37: 5,451,795 km (0.119 R)
- M38: 5,534,074 km (0.104 R)
- M39: 5,755,329 km (0.084 R)
- M40: 6,017,275 km (0.052 R)
- M41: 6,244,814 km (0.11 R)
- M42: 6,369,429 km (0.104 R)
- M43: 6,456,046 km (0.113 R)
- M44: 6,601,455 km (0.099 R)
Planet 3 - Gas Giant
Semi-Major Axis: 0.8 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 529.3
Radius: 9.4
Gravity: 5.99 G
Time & Orbit
Eccentricity (e): 0.145
Orbit Range: 0.68 AU - 0.92 AU
Year: 477 Days
Day: 12.1 Hours
Environment
Temp: -160 °C
Axial Tilt: 36.7 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (51)
Outer Limit: 80,508,338 km
- M1: 118,332 km (0.057 R)
- M2: 194,028 km (0.103 R)
- M3: 340,934 km (0.069 R)
- M4: 413,937 km (0.071 R)
- M5: 517,758 km (0.069 R)
- M6: 586,424 km (0.084 R)
- M7: 682,166 km (0.03 R)
- M8: 746,344 km (0.113 R)
- M9: 825,631 km (0.103 R)
- M10: 934,538 km (0.105 R)
- M11: 1,016,069 km (0.12 R)
- M12: 1,162,525 km (0.029 R)
- M13: 1,260,811 km (0.108 R)
- M14: 1,434,494 km (0.101 R)
- M15: 1,535,024 km (0.051 R)
- M16: 1,605,335 km (0.083 R)
- M17: 1,743,563 km (0.084 R)
- M18: 2,085,394 km (0.052 R)
- M19: 2,261,321 km (0.071 R)
- M20: 2,372,921 km (0.109 R)
- M21: 2,467,467 km (0.12 R)
- M22: 2,543,912 km (0.11 R)
- M23: 2,621,254 km (0.088 R)
- M24: 2,692,762 km (0.107 R)
- M25: 2,831,289 km (0.102 R)
- M26: 2,924,938 km (0.084 R)
- M27: 3,012,901 km (0.103 R)
- M28: 3,074,386 km (0.086 R)
- M29: 3,191,521 km (0.045 R)
- M30: 3,331,245 km (0.111 R)
- M31: 3,437,310 km (0.103 R)
- M32: 3,544,722 km (0.107 R)
- M33: 3,740,695 km (0.1 R)
- M34: 3,814,147 km (0.091 R)
- M35: 3,962,548 km (0.089 R)
- M36: 4,045,126 km (0.098 R)
- M37: 4,158,522 km (0.111 R)
- M38: 4,227,037 km (0.106 R)
- M39: 4,288,373 km (0.116 R)
- M40: 4,349,857 km (0.106 R)
- M41: 4,419,570 km (0.114 R)
- M42: 4,497,361 km (0.108 R)
- M43: 4,614,945 km (0.071 R)
- M44: 4,693,932 km (0.115 R)
- M45: 4,805,233 km (0.068 R)
- M46: 4,893,197 km (0.104 R)
- M47: 4,981,908 km (0.115 R)
- M48: 5,251,035 km (0.069 R)
- M49: 5,333,463 km (0.052 R)
- M50: 5,583,591 km (0.115 R)
- M51: 5,743,960 km (0.1 R)
Planet 4 - Gas Giant
Semi-Major Axis: 0.91 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 569.6
Radius: 8.8
Gravity: 7.36 G
Time & Orbit
Eccentricity (e): 0.09
Orbit Range: 0.83 AU - 0.99 AU
Year: 579 Days
Day: 6.5 Hours
Environment
Temp: -165 °C
Axial Tilt: 13.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (53)
Outer Limit: 80,508,338 km
- M1: 140,472 km (0.062 R)
- M2: 222,003 km (0.099 R)
- M3: 306,825 km (0.069 R)
- M4: 487,240 km (0.09 R)
- M5: 607,816 km (0.118 R)
- M6: 761,752 km (0.056 R)
- M7: 904,319 km (0.082 R)
- M8: 974,032 km (0.098 R)
- M9: 1,205,310 km (0.03 R)
- M10: 1,321,847 km (0.091 R)
- M11: 1,501,065 km (0.09 R)
- M12: 1,560,755 km (0.119 R)
- M13: 1,694,645 km (0.114 R)
- M14: 1,870,572 km (0.054 R)
- M15: 2,006,706 km (0.082 R)
- M16: 2,079,261 km (0.115 R)
- M17: 2,199,986 km (0.044 R)
- M18: 2,288,548 km (0.06 R)
- M19: 2,378,457 km (0.092 R)
- M20: 2,469,562 km (0.118 R)
- M21: 2,662,543 km (0.054 R)
- M22: 2,720,736 km (0.113 R)
- M23: 3,070,945 km (0.086 R)
- M24: 3,131,981 km (0.1 R)
- M25: 3,333,190 km (0.108 R)
- M26: 3,388,093 km (0.118 R)
- M27: 3,491,016 km (0.099 R)
- M28: 3,602,915 km (0.058 R)
- M29: 3,691,627 km (0.094 R)
- M30: 3,896,127 km (0.051 R)
- M31: 4,087,612 km (0.081 R)
- M32: 4,222,699 km (0.07 R)
- M33: 4,290,766 km (0.043 R)
- M34: 4,359,282 km (0.059 R)
- M35: 4,514,565 km (0.093 R)
- M36: 4,654,289 km (0.099 R)
- M37: 4,742,253 km (0.067 R)
- M38: 4,928,951 km (0.106 R)
- M39: 5,036,661 km (0.113 R)
- M40: 5,099,941 km (0.106 R)
- M41: 5,208,998 km (0.045 R)
- M42: 5,282,002 km (0.115 R)
- M43: 5,337,054 km (0.047 R)
- M44: 5,429,356 km (0.106 R)
- M45: 5,503,406 km (0.108 R)
- M46: 5,596,606 km (0.109 R)
- M47: 5,662,130 km (0.109 R)
- M48: 5,784,501 km (0.075 R)
- M49: 5,888,771 km (0.079 R)
- M50: 5,984,064 km (0.039 R)
- M51: 6,089,531 km (0.098 R)
- M52: 6,147,276 km (0.107 R)
- M53: 6,292,535 km (0.049 R)
Planet 5 - Gas Giant
Semi-Major Axis: 1.85 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 203.2
Radius: 9.8
Gravity: 2.12 G
Time & Orbit
Eccentricity (e): 0.062
Orbit Range: 1.74 AU - 1.96 AU
Year: 1678 Days
Day: 11.2 Hours
Environment
Temp: -193 °C
Axial Tilt: 45 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (60)
Outer Limit: 80,508,338 km
- M1: 155,432 km (0.041 R)
- M2: 216,618 km (0.07 R)
- M3: 281,094 km (0.107 R)
- M4: 364,121 km (0.089 R)
- M5: 491,579 km (0.102 R)
- M6: 556,504 km (0.092 R)
- M7: 696,677 km (0.089 R)
- M8: 831,016 km (0.112 R)
- M9: 993,779 km (0.08 R)
- M10: 1,119,590 km (0.05 R)
- M11: 1,229,844 km (0.115 R)
- M12: 1,322,296 km (0.075 R)
- M13: 1,454,241 km (0.102 R)
- M14: 1,567,636 km (0.12 R)
- M15: 1,684,173 km (0.058 R)
- M16: 1,819,708 km (0.043 R)
- M17: 1,942,379 km (0.029 R)
- M18: 2,076,418 km (0.115 R)
- M19: 2,153,162 km (0.044 R)
- M20: 2,274,486 km (0.086 R)
- M21: 2,335,971 km (0.111 R)
- M22: 2,717,146 km (0.086 R)
- M23: 2,782,670 km (0.07 R)
- M24: 2,858,067 km (0.099 R)
- M25: 2,934,362 km (0.103 R)
- M26: 3,001,532 km (0.107 R)
- M27: 3,108,195 km (0.084 R)
- M28: 3,235,952 km (0.097 R)
- M29: 3,395,722 km (0.087 R)
- M30: 3,578,531 km (0.103 R)
- M31: 3,785,425 km (0.107 R)
- M32: 3,848,256 km (0.091 R)
- M33: 3,911,536 km (0.099 R)
- M34: 4,178,717 km (0.114 R)
- M35: 4,462,953 km (0.086 R)
- M36: 4,540,595 km (0.073 R)
- M37: 5,038,755 km (0.079 R)
- M38: 5,166,063 km (0.088 R)
- M39: 5,236,075 km (0.104 R)
- M40: 5,317,905 km (0.12 R)
- M41: 5,746,204 km (0.112 R)
- M42: 5,867,228 km (0.118 R)
- M43: 5,964,617 km (0.109 R)
- M44: 6,123,938 km (0.086 R)
- M45: 6,686,576 km (0.059 R)
- M46: 6,929,224 km (0.112 R)
- M47: 7,019,282 km (0.092 R)
- M48: 7,409,882 km (0.067 R)
- M49: 7,541,677 km (0.094 R)
- M50: 7,834,440 km (0.119 R)
- M51: 7,941,702 km (0.035 R)
- M52: 8,117,330 km (0.084 R)
- M53: 8,266,778 km (0.084 R)
- M54: 8,665,457 km (0.086 R)
- M55: 8,958,070 km (0.042 R)
- M56: 9,154,941 km (0.111 R)
- M57: 9,296,460 km (0.034 R)
- M58: 9,438,578 km (0.034 R)
- M59: 9,581,594 km (0.073 R)
- M60: 9,725,358 km (0.097 R)
Planet 6 - Gas Giant
Semi-Major Axis: 2.63 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 784
Radius: 10.9
Gravity: 6.6 G
Time & Orbit
Eccentricity (e): 0.122
Orbit Range: 2.31 AU - 2.95 AU
Year: 2844 Days
Day: 10.3 Hours
Environment
Temp: -218 °C
Axial Tilt: 2.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (67)
Outer Limit: 80,508,338 km
- M1: 137,480 km (0.071 R)
- M2: 321,037 km (0.108 R)
- M3: 492,626 km (0.085 R)
- M4: 578,196 km (0.042 R)
- M5: 669,600 km (0.07 R)
- M6: 954,135 km (0.063 R)
- M7: 1,122,433 km (0.081 R)
- M8: 1,240,316 km (0.095 R)
- M9: 1,514,678 km (0.108 R)
- M10: 1,767,499 km (0.087 R)
- M11: 1,892,114 km (0.119 R)
- M12: 2,359,158 km (0.113 R)
- M13: 2,497,088 km (0.079 R)
- M14: 2,732,854 km (0.079 R)
- M15: 2,975,950 km (0.117 R)
- M16: 3,058,528 km (0.084 R)
- M17: 3,362,511 km (0.106 R)
- M18: 3,891,041 km (0.116 R)
- M19: 4,276,405 km (0.08 R)
- M20: 4,597,591 km (0.117 R)
- M21: 4,906,960 km (0.101 R)
- M22: 5,143,624 km (0.1 R)
- M23: 5,363,682 km (0.081 R)
- M24: 5,607,527 km (0.095 R)
- M25: 6,105,987 km (0.102 R)
- M26: 6,317,967 km (0.07 R)
- M27: 6,532,490 km (0.091 R)
- M28: 7,034,690 km (0.091 R)
- M29: 7,459,099 km (0.075 R)
- M30: 7,868,848 km (0.089 R)
- M31: 7,937,813 km (0.101 R)
- M32: 8,781,694 km (0.086 R)
- M33: 8,877,287 km (0.083 R)
- M34: 9,021,200 km (0.103 R)
- M35: 9,214,481 km (0.086 R)
- M36: 9,728,050 km (0.081 R)
- M37: 9,826,935 km (0.108 R)
- M38: 9,901,285 km (0.081 R)
- M39: 10,025,750 km (0.093 R)
- M40: 10,150,664 km (0.088 R)
- M41: 10,553,831 km (0.075 R)
- M42: 11,272,200 km (0.099 R)
- M43: 11,637,368 km (0.108 R)
- M44: 12,086,012 km (0.087 R)
- M45: 12,379,224 km (0.049 R)
- M46: 12,594,046 km (0.106 R)
- M47: 12,810,066 km (0.104 R)
- M48: 13,410,552 km (0.117 R)
- M49: 13,825,237 km (0.038 R)
- M50: 13,908,712 km (0.115 R)
- M51: 14,104,087 km (0.113 R)
- M52: 14,300,360 km (0.08 R)
- M53: 14,497,530 km (0.109 R)
- M54: 14,894,562 km (0.11 R)
- M55: 15,554,738 km (0.09 R)
- M56: 15,757,593 km (0.074 R)
- M57: 15,873,830 km (0.055 R)
- M58: 16,844,122 km (0.1 R)
- M59: 17,291,569 km (0.115 R)
- M60: 17,773,125 km (0.066 R)
- M61: 18,595,763 km (0.083 R)
- M62: 19,555,583 km (0.105 R)
- M63: 19,805,860 km (0.089 R)
- M64: 20,436,266 km (0.068 R)
- M65: 21,105,417 km (0.035 R)
- M66: 21,201,609 km (0.107 R)
- M67: 21,329,964 km (0.101 R)
Planet 7 - Ice Giant
Semi-Major Axis: 10.15 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 698
Radius: 6.8
Gravity: 15.1 G
Time & Orbit
Eccentricity (e): 0.238
Orbit Range: 7.73 AU - 12.57 AU
Year: 21564 Days
Day: 21.9 Hours
Environment
Temp: -244 °C
Axial Tilt: 27.1 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (95)
Outer Limit: 80,508,338 km
- M1: 91,703 km (0.111 R)
- M2: 365,168 km (0.118 R)
- M3: 441,314 km (0.073 R)
- M4: 566,677 km (0.095 R)
- M5: 680,371 km (0.089 R)
- M6: 826,827 km (0.118 R)
- M7: 930,349 km (0.103 R)
- M8: 1,606,083 km (0.079 R)
- M9: 1,938,639 km (0.113 R)
- M10: 3,180,152 km (0.109 R)
- M11: 3,941,455 km (0.045 R)
- M12: 5,039,952 km (0.081 R)
- M13: 5,231,737 km (0.042 R)
- M14: 5,523,901 km (0.114 R)
- M15: 5,921,832 km (0.098 R)
- M16: 6,073,374 km (0.032 R)
- M17: 6,277,575 km (0.106 R)
- M18: 6,850,685 km (0.106 R)
- M19: 7,063,114 km (0.101 R)
- M20: 8,326,917 km (0.081 R)
- M21: 8,668,000 km (0.062 R)
- M22: 8,782,592 km (0.066 R)
- M23: 9,013,571 km (0.116 R)
- M24: 10,379,699 km (0.106 R)
- M25: 11,242,579 km (0.102 R)
- M26: 11,430,474 km (0.115 R)
- M27: 12,000,292 km (0.097 R)
- M28: 12,385,357 km (0.11 R)
- M29: 12,774,461 km (0.104 R)
- M30: 12,905,060 km (0.045 R)
- M31: 14,100,347 km (0.11 R)
- M32: 14,916,703 km (0.12 R)
- M33: 14,985,368 km (0.112 R)
- M34: 17,023,639 km (0.051 R)
- M35: 18,038,362 km (0.063 R)
- M36: 18,331,873 km (0.063 R)
- M37: 18,923,682 km (0.102 R)
- M38: 18,998,032 km (0.103 R)
- M39: 21,430,194 km (0.078 R)
- M40: 22,131,808 km (0.083 R)
- M41: 22,445,964 km (0.104 R)
- M42: 22,761,615 km (0.107 R)
- M43: 23,958,548 km (0.108 R)
- M44: 25,175,826 km (0.073 R)
- M45: 26,913,405 km (0.057 R)
- M46: 26,997,180 km (0.094 R)
- M47: 27,669,921 km (0.082 R)
- M48: 28,008,461 km (0.065 R)
- M49: 28,348,198 km (0.111 R)
- M50: 29,894,292 km (0.119 R)
- M51: 32,888,643 km (0.114 R)
- M52: 33,607,012 km (0.081 R)
- M53: 33,877,784 km (0.045 R)
- M54: 34,512,229 km (0.079 R)
- M55: 34,876,500 km (0.1 R)
- M56: 35,150,563 km (0.093 R)
- M57: 35,242,117 km (0.119 R)
- M58: 38,306,330 km (0.12 R)
- M59: 39,631,767 km (0.102 R)
- M60: 39,727,061 km (0.115 R)
- M61: 40,013,391 km (0.107 R)
- M62: 41,551,407 km (0.11 R)
- M63: 46,280,196 km (0.085 R)
- M64: 47,691,203 km (0.07 R)
- M65: 48,300,365 km (0.106 R)
- M66: 49,731,419 km (0.044 R)
- M67: 51,072,713 km (0.058 R)
- M68: 51,695,788 km (0.095 R)
- M69: 52,216,838 km (0.099 R)
- M70: 52,530,395 km (0.11 R)
- M71: 52,949,418 km (0.06 R)
- M72: 55,167,356 km (0.117 R)
- M73: 55,699,925 km (0.056 R)
- M74: 56,877,559 km (0.084 R)
- M75: 57,631,084 km (0.095 R)
- M76: 57,739,093 km (0.114 R)
- M77: 58,604,966 km (0.065 R)
- M78: 62,000,688 km (0.101 R)
- M79: 62,332,646 km (0.089 R)
- M80: 63,220,808 km (0.052 R)
- M81: 64,113,159 km (0.093 R)
- M82: 64,785,153 km (0.11 R)
- M83: 65,347,043 km (0.063 R)
- M84: 66,023,225 km (0.077 R)
- M85: 66,136,171 km (0.067 R)
- M86: 66,475,459 km (0.092 R)
- M87: 69,669,224 km (0.1 R)
- M88: 70,475,407 km (0.097 R)
- M89: 70,590,747 km (0.069 R)
- M90: 71,400,521 km (0.099 R)
- M91: 72,795,820 km (0.078 R)
- M92: 73,146,028 km (0.087 R)
- M93: 73,496,835 km (0.089 R)
- M94: 74,670,132 km (0.055 R)
- M95: 76,441,819 km (0.107 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: 488 - 10,927 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.