Star System Generated (Seed: 1766835470)
Star Details
Spectral Class: M0V
Temperature: 3,700 K
Mass: 0.33 sol
Luminosity: 0.02 lux
Habitable Zone (HZ)
Inner Boundary: 0.13 AU
Outer Boundary: 0.19 AU
Physical Limits
Snow Line: 0.68 AU
Max System Radius: 11.5 AU
Planetary System (5 Planets)
Asteroid Belt
Center: 1.79 AU
Composition
Type: Far Outer (Icy/Cometary)
A dense region of planetesimals and debris.
Boundary
Planet 1 - Gas Giant
Semi-Major Axis: 3.57 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 842.8
Radius: 8.4
Gravity: 11.94 G
Time & Orbit
Eccentricity (e): 0.075
Orbit Range: 3.3 AU - 3.84 AU
Year: 4289 Days
Day: 13.3 Hours
Environment
Temp: -206 °C
Axial Tilt: 28.7 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (82)
Outer Limit: 62,629,491 km
- M1: 107,112 km (0.12 R)
- M2: 337,343 km (0.033 R)
- M3: 597,943 km (0.12 R)
- M4: 813,064 km (0.059 R)
- M5: 929,900 km (0.11 R)
- M6: 997,369 km (0.076 R)
- M7: 1,195,437 km (0.072 R)
- M8: 1,437,336 km (0.105 R)
- M9: 2,308,744 km (0.051 R)
- M10: 2,649,378 km (0.106 R)
- M11: 2,905,490 km (0.08 R)
- M12: 3,107,896 km (0.075 R)
- M13: 3,441,349 km (0.092 R)
- M14: 3,526,620 km (0.114 R)
- M15: 3,612,489 km (0.099 R)
- M16: 3,874,435 km (0.118 R)
- M17: 3,940,857 km (0.12 R)
- M18: 4,165,254 km (0.09 R)
- M19: 4,556,153 km (0.068 R)
- M20: 5,323,889 km (0.107 R)
- M21: 6,028,196 km (0.07 R)
- M22: 6,417,599 km (0.081 R)
- M23: 6,522,766 km (0.092 R)
- M24: 6,602,053 km (0.101 R)
- M25: 7,057,429 km (0.1 R)
- M26: 7,220,640 km (0.049 R)
- M27: 7,522,978 km (0.119 R)
- M28: 8,055,097 km (0.059 R)
- M29: 8,570,462 km (0.05 R)
- M30: 9,214,780 km (0.103 R)
- M31: 9,423,020 km (0.102 R)
- M32: 9,572,768 km (0.118 R)
- M33: 9,904,875 km (0.105 R)
- M34: 10,087,684 km (0.111 R)
- M35: 10,179,537 km (0.11 R)
- M36: 10,271,689 km (0.062 R)
- M37: 10,394,958 km (0.065 R)
- M38: 10,798,872 km (0.104 R)
- M39: 10,924,085 km (0.073 R)
- M40: 12,138,670 km (0.06 R)
- M41: 12,236,358 km (0.098 R)
- M42: 12,367,106 km (0.116 R)
- M43: 12,498,304 km (0.119 R)
- M44: 12,794,956 km (0.084 R)
- M45: 13,361,932 km (0.088 R)
- M46: 13,903,028 km (0.093 R)
- M47: 14,176,343 km (0.115 R)
- M48: 14,347,932 km (0.111 R)
- M49: 14,554,826 km (0.119 R)
- M50: 15,006,611 km (0.08 R)
- M51: 16,317,388 km (0.098 R)
- M52: 16,859,231 km (0.102 R)
- M53: 16,968,288 km (0.076 R)
- M54: 17,406,909 km (0.069 R)
- M55: 17,849,270 km (0.105 R)
- M56: 18,034,771 km (0.114 R)
- M57: 18,109,121 km (0.104 R)
- M58: 18,707,513 km (0.083 R)
- M59: 18,820,459 km (0.07 R)
- M60: 19,009,252 km (0.069 R)
- M61: 19,236,491 km (0.112 R)
- M62: 19,579,220 km (0.112 R)
- M63: 20,039,233 km (0.093 R)
- M64: 20,425,345 km (0.11 R)
- M65: 20,813,851 km (0.083 R)
- M66: 21,322,633 km (0.111 R)
- M67: 21,795,811 km (0.086 R)
- M68: 22,073,465 km (0.115 R)
- M69: 22,472,143 km (0.082 R)
- M70: 22,873,365 km (0.06 R)
- M71: 22,953,848 km (0.103 R)
- M72: 23,601,158 km (0.119 R)
- M73: 24,460,000 km (0.071 R)
- M74: 24,665,996 km (0.104 R)
- M75: 25,370,752 km (0.069 R)
- M76: 25,454,078 km (0.073 R)
- M77: 25,537,553 km (0.111 R)
- M78: 25,955,979 km (0.12 R)
- M79: 26,376,797 km (0.109 R)
- M80: 27,225,167 km (0.117 R)
- M81: 28,125,596 km (0.094 R)
- M82: 28,644,551 km (0.119 R)
Planet 2 - Gas Giant
Semi-Major Axis: 3.86 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 652.4
Radius: 12.9
Gravity: 3.92 G
Time & Orbit
Eccentricity (e): 0.009
Orbit Range: 3.83 AU - 3.89 AU
Year: 4822 Days
Day: 12.9 Hours
Environment
Temp: -215 °C
Axial Tilt: 14.8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (80)
Outer Limit: 62,629,491 km
- M1: 230,082 km (0.098 R)
- M2: 365,617 km (0.089 R)
- M3: 563,236 km (0.091 R)
- M4: 991,535 km (0.094 R)
- M5: 1,226,852 km (0.113 R)
- M6: 1,903,334 km (0.044 R)
- M7: 2,006,107 km (0.041 R)
- M8: 2,326,097 km (0.069 R)
- M9: 2,436,650 km (0.026 R)
- M10: 2,955,605 km (0.048 R)
- M11: 3,156,515 km (0.106 R)
- M12: 3,403,950 km (0.066 R)
- M13: 3,572,397 km (0.102 R)
- M14: 3,679,060 km (0.116 R)
- M15: 3,961,651 km (0.105 R)
- M16: 4,274,011 km (0.081 R)
- M17: 4,364,667 km (0.094 R)
- M18: 4,571,262 km (0.087 R)
- M19: 4,781,148 km (0.068 R)
- M20: 4,875,395 km (0.083 R)
- M21: 5,018,111 km (0.119 R)
- M22: 5,877,700 km (0.079 R)
- M23: 6,157,448 km (0.101 R)
- M24: 6,389,624 km (0.094 R)
- M25: 7,731,368 km (0.04 R)
- M26: 8,066,168 km (0.051 R)
- M27: 8,207,089 km (0.086 R)
- M28: 8,405,755 km (0.114 R)
- M29: 8,953,133 km (0.108 R)
- M30: 9,157,783 km (0.063 R)
- M31: 9,245,896 km (0.072 R)
- M32: 9,423,020 km (0.085 R)
- M33: 9,571,571 km (0.082 R)
- M34: 9,870,916 km (0.081 R)
- M35: 9,991,642 km (0.077 R)
- M36: 10,632,968 km (0.096 R)
- M37: 10,943,084 km (0.106 R)
- M38: 11,067,998 km (0.051 R)
- M39: 11,350,738 km (0.112 R)
- M40: 11,508,863 km (0.104 R)
- M41: 12,310,558 km (0.08 R)
- M42: 12,407,947 km (0.104 R)
- M43: 12,931,838 km (0.103 R)
- M44: 13,096,994 km (0.086 R)
- M45: 13,496,421 km (0.075 R)
- M46: 13,798,608 km (0.067 R)
- M47: 13,967,504 km (0.04 R)
- M48: 14,069,231 km (0.069 R)
- M49: 14,787,600 km (0.052 R)
- M50: 15,869,941 km (0.097 R)
- M51: 16,260,241 km (0.067 R)
- M52: 16,581,877 km (0.052 R)
- M53: 16,869,553 km (0.069 R)
- M54: 17,195,078 km (0.088 R)
- M55: 17,595,851 km (0.119 R)
- M56: 18,036,716 km (0.03 R)
- M57: 18,742,070 km (0.072 R)
- M58: 19,988,519 km (0.095 R)
- M59: 21,183,806 km (0.047 R)
- M60: 21,456,972 km (0.106 R)
- M61: 22,362,488 km (0.071 R)
- M62: 22,481,568 km (0.072 R)
- M63: 22,600,798 km (0.083 R)
- M64: 22,800,062 km (0.115 R)
- M65: 22,959,832 km (0.096 R)
- M66: 23,120,052 km (0.104 R)
- M67: 23,240,478 km (0.055 R)
- M68: 23,562,413 km (0.068 R)
- M69: 23,804,911 km (0.062 R)
- M70: 23,967,075 km (0.118 R)
- M71: 24,660,311 km (0.109 R)
- M72: 24,988,828 km (0.055 R)
- M73: 25,401,419 km (0.112 R)
- M74: 27,625,940 km (0.098 R)
- M75: 27,924,387 km (0.104 R)
- M76: 28,052,593 km (0.104 R)
- M77: 28,223,882 km (0.102 R)
- M78: 28,610,593 km (0.117 R)
- M79: 28,739,845 km (0.104 R)
- M80: 28,869,397 km (0.067 R)
Planet 3 - Gas Giant
Semi-Major Axis: 4.78 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 350.3
Radius: 10
Gravity: 3.5 G
Time & Orbit
Eccentricity (e): 0.096
Orbit Range: 4.32 AU - 5.24 AU
Year: 6645 Days
Day: 7.8 Hours
Environment
Temp: -205 °C
Axial Tilt: 45 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (80)
Outer Limit: 62,629,491 km
- M1: 129,103 km (0.055 R)
- M2: 212,878 km (0.038 R)
- M3: 374,593 km (0.109 R)
- M4: 562,189 km (0.116 R)
- M5: 685,906 km (0.109 R)
- M6: 757,414 km (0.066 R)
- M7: 922,121 km (0.076 R)
- M8: 1,085,033 km (0.082 R)
- M9: 1,393,355 km (0.097 R)
- M10: 1,630,467 km (0.096 R)
- M11: 2,125,636 km (0.112 R)
- M12: 2,343,899 km (0.097 R)
- M13: 2,743,326 km (0.118 R)
- M14: 3,021,727 km (0.117 R)
- M15: 3,205,583 km (0.116 R)
- M16: 3,309,254 km (0.058 R)
- M17: 3,414,123 km (0.114 R)
- M18: 3,866,806 km (0.07 R)
- M19: 4,156,577 km (0.038 R)
- M20: 4,430,491 km (0.101 R)
- M21: 4,639,778 km (0.102 R)
- M22: 4,733,725 km (0.106 R)
- M23: 5,213,785 km (0.095 R)
- M24: 5,734,386 km (0.063 R)
- M25: 6,323,801 km (0.115 R)
- M26: 6,454,400 km (0.047 R)
- M27: 8,520,347 km (0.085 R)
- M28: 8,606,814 km (0.083 R)
- M29: 8,751,924 km (0.067 R)
- M30: 8,897,633 km (0.06 R)
- M31: 9,429,303 km (0.042 R)
- M32: 9,578,901 km (0.074 R)
- M33: 9,699,028 km (0.085 R)
- M34: 9,880,191 km (0.087 R)
- M35: 10,338,260 km (0.08 R)
- M36: 11,180,047 km (0.094 R)
- M37: 11,433,616 km (0.106 R)
- M38: 11,914,423 km (0.095 R)
- M39: 12,141,064 km (0.089 R)
- M40: 12,238,602 km (0.044 R)
- M41: 12,664,357 km (0.062 R)
- M42: 12,730,330 km (0.107 R)
- M43: 13,128,410 km (0.078 R)
- M44: 14,278,369 km (0.057 R)
- M45: 15,179,546 km (0.06 R)
- M46: 15,319,720 km (0.115 R)
- M47: 16,385,455 km (0.083 R)
- M48: 16,673,730 km (0.12 R)
- M49: 16,745,986 km (0.081 R)
- M50: 16,818,391 km (0.047 R)
- M51: 16,927,298 km (0.072 R)
- M52: 17,438,325 km (0.107 R)
- M53: 17,806,335 km (0.096 R)
- M54: 17,991,388 km (0.045 R)
- M55: 18,550,286 km (0.113 R)
- M56: 18,662,783 km (0.11 R)
- M57: 18,737,881 km (0.039 R)
- M58: 19,039,321 km (0.109 R)
- M59: 19,190,714 km (0.079 R)
- M60: 19,646,988 km (0.054 R)
- M61: 19,799,877 km (0.104 R)
- M62: 20,183,894 km (0.031 R)
- M63: 20,881,469 km (0.062 R)
- M64: 21,626,167 km (0.055 R)
- M65: 22,220,370 km (0.098 R)
- M66: 22,419,634 km (0.068 R)
- M67: 23,182,135 km (0.093 R)
- M68: 23,668,029 km (0.045 R)
- M69: 24,444,442 km (0.115 R)
- M70: 24,526,720 km (0.1 R)
- M71: 24,650,139 km (0.102 R)
- M72: 25,021,889 km (0.068 R)
- M73: 25,520,350 km (0.095 R)
- M74: 25,812,664 km (0.117 R)
- M75: 26,358,397 km (0.077 R)
- M76: 26,442,770 km (0.11 R)
- M77: 27,163,084 km (0.097 R)
- M78: 27,718,092 km (0.067 R)
- M79: 28,449,775 km (0.095 R)
- M80: 29,100,526 km (0.058 R)
Planet 4 - Ice Giant
Semi-Major Axis: 7.7 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 868.7
Radius: 3.2
Gravity: 84.83 G
Time & Orbit
Eccentricity (e): 0.074
Orbit Range: 7.13 AU - 8.27 AU
Year: 13585 Days
Day: 19.3 Hours
Environment
Temp: -215 °C
Axial Tilt: 18 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (98)
Outer Limit: 62,629,491 km
- M1: 193,430 km (0.098 R)
- M2: 219,759 km (0.042 R)
- M3: 438,471 km (0.102 R)
- M4: 510,877 km (0.107 R)
- M5: 606,919 km (0.089 R)
- M6: 750,832 km (0.04 R)
- M7: 837,898 km (0.095 R)
- M8: 1,478,925 km (0.061 R)
- M9: 1,588,281 km (0.108 R)
- M10: 1,902,137 km (0.088 R)
- M11: 2,020,918 km (0.073 R)
- M12: 2,455,799 km (0.076 R)
- M13: 2,520,126 km (0.115 R)
- M14: 2,617,813 km (0.104 R)
- M15: 2,683,636 km (0.09 R)
- M16: 2,986,572 km (0.112 R)
- M17: 3,587,955 km (0.094 R)
- M18: 3,697,760 km (0.045 R)
- M19: 3,846,161 km (0.027 R)
- M20: 5,265,695 km (0.085 R)
- M21: 5,856,906 km (0.077 R)
- M22: 6,873,125 km (0.1 R)
- M23: 7,611,390 km (0.084 R)
- M24: 7,752,610 km (0.108 R)
- M25: 8,716,170 km (0.066 R)
- M26: 8,765,238 km (0.106 R)
- M27: 9,614,954 km (0.092 R)
- M28: 9,767,694 km (0.106 R)
- M29: 10,438,341 km (0.083 R)
- M30: 10,490,551 km (0.071 R)
- M31: 10,647,778 km (0.112 R)
- M32: 11,606,850 km (0.081 R)
- M33: 11,715,159 km (0.11 R)
- M34: 12,704,599 km (0.101 R)
- M35: 13,834,961 km (0.047 R)
- M36: 16,009,366 km (0.105 R)
- M37: 16,069,504 km (0.063 R)
- M38: 16,129,792 km (0.118 R)
- M39: 16,190,230 km (0.081 R)
- M40: 16,250,667 km (0.085 R)
- M41: 16,432,429 km (0.055 R)
- M42: 16,614,938 km (0.089 R)
- M43: 16,859,381 km (0.111 R)
- M44: 16,981,901 km (0.097 R)
- M45: 17,599,441 km (0.091 R)
- M46: 18,224,312 km (0.108 R)
- M47: 19,047,549 km (0.105 R)
- M48: 19,947,380 km (0.119 R)
- M49: 21,190,688 km (0.074 R)
- M50: 21,323,082 km (0.058 R)
- M51: 21,455,626 km (0.038 R)
- M52: 21,721,760 km (0.054 R)
- M53: 23,477,291 km (0.092 R)
- M54: 23,888,985 km (0.08 R)
- M55: 23,957,800 km (0.103 R)
- M56: 25,207,989 km (0.088 R)
- M57: 25,278,001 km (0.104 R)
- M58: 27,050,736 km (0.091 R)
- M59: 27,338,113 km (0.086 R)
- M60: 29,895,190 km (0.1 R)
- M61: 31,315,023 km (0.093 R)
- M62: 31,692,309 km (0.081 R)
- M63: 32,603,809 km (0.105 R)
- M64: 33,909,798 km (0.108 R)
- M65: 34,219,615 km (0.12 R)
- M66: 34,530,330 km (0.113 R)
- M67: 35,389,620 km (0.118 R)
- M68: 35,782,614 km (0.088 R)
- M69: 36,018,979 km (0.054 R)
- M70: 37,288,765 km (0.104 R)
- M71: 38,331,313 km (0.117 R)
- M72: 39,872,021 km (0.113 R)
- M73: 40,608,940 km (0.11 R)
- M74: 41,102,613 km (0.089 R)
- M75: 41,681,108 km (0.059 R)
- M76: 42,096,093 km (0.066 R)
- M77: 42,762,701 km (0.114 R)
- M78: 43,181,126 km (0.108 R)
- M79: 43,937,792 km (0.082 R)
- M80: 44,106,539 km (0.11 R)
- M81: 45,805,671 km (0.117 R)
- M82: 47,699,281 km (0.117 R)
- M83: 47,959,432 km (0.055 R)
- M84: 48,220,031 km (0.102 R)
- M85: 49,004,971 km (0.06 R)
- M86: 50,675,531 km (0.072 R)
- M87: 53,711,470 km (0.072 R)
- M88: 54,253,313 km (0.032 R)
- M89: 54,434,327 km (0.101 R)
- M90: 54,706,146 km (0.07 R)
- M91: 56,622,046 km (0.107 R)
- M92: 58,096,483 km (0.071 R)
- M93: 58,652,688 km (0.079 R)
- M94: 59,770,184 km (0.115 R)
- M95: 60,706,966 km (0.106 R)
- M96: 61,082,905 km (0.105 R)
- M97: 62,026,419 km (0.043 R)
- M98: 63,069,864 km (0.028 R)
Planet 5 - Ice Giant
Semi-Major Axis: 9.77 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 405.3
Radius: 7.3
Gravity: 7.61 G
Time & Orbit
Eccentricity (e): 0.069
Orbit Range: 9.1 AU - 10.44 AU
Year: 19417 Days
Day: 19.8 Hours
Environment
Temp: -234 °C
Axial Tilt: 38.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (96)
Outer Limit: 62,629,491 km
- M1: 135,536 km (0.103 R)
- M2: 194,328 km (0.055 R)
- M3: 448,794 km (0.045 R)
- M4: 727,943 km (0.041 R)
- M5: 875,596 km (0.107 R)
- M6: 1,324,240 km (0.089 R)
- M7: 1,586,186 km (0.1 R)
- M8: 1,723,367 km (0.049 R)
- M9: 2,279,722 km (0.058 R)
- M10: 3,089,944 km (0.11 R)
- M11: 3,192,867 km (0.118 R)
- M12: 3,472,615 km (0.077 R)
- M13: 3,796,794 km (0.114 R)
- M14: 3,907,048 km (0.108 R)
- M15: 4,168,545 km (0.111 R)
- M16: 4,787,281 km (0.049 R)
- M17: 4,866,718 km (0.114 R)
- M18: 5,937,988 km (0.088 R)
- M19: 6,066,194 km (0.111 R)
- M20: 6,325,297 km (0.088 R)
- M21: 6,676,553 km (0.078 R)
- M22: 6,944,184 km (0.06 R)
- M23: 7,535,843 km (0.081 R)
- M24: 7,674,820 km (0.081 R)
- M25: 7,721,195 km (0.09 R)
- M26: 8,286,376 km (0.112 R)
- M27: 8,670,543 km (0.099 R)
- M28: 8,815,952 km (0.1 R)
- M29: 9,406,265 km (0.083 R)
- M30: 9,605,978 km (0.098 R)
- M31: 10,162,034 km (0.111 R)
- M32: 11,147,136 km (0.063 R)
- M33: 11,411,475 km (0.097 R)
- M34: 11,892,432 km (0.118 R)
- M35: 12,216,761 km (0.078 R)
- M36: 13,095,798 km (0.113 R)
- M37: 14,337,460 km (0.116 R)
- M38: 16,629,299 km (0.056 R)
- M39: 16,810,163 km (0.109 R)
- M40: 17,113,248 km (0.049 R)
- M41: 17,601,985 km (0.076 R)
- M42: 18,906,328 km (0.078 R)
- M43: 19,284,811 km (0.094 R)
- M44: 19,474,950 km (0.076 R)
- M45: 21,344,923 km (0.076 R)
- M46: 21,672,992 km (0.066 R)
- M47: 22,667,518 km (0.036 R)
- M48: 22,734,388 km (0.088 R)
- M49: 23,203,976 km (0.117 R)
- M50: 23,812,540 km (0.101 R)
- M51: 24,769,518 km (0.088 R)
- M52: 25,739,062 km (0.095 R)
- M53: 26,088,223 km (0.09 R)
- M54: 26,439,180 km (0.104 R)
- M55: 27,643,592 km (0.079 R)
- M56: 28,938,362 km (0.091 R)
- M57: 29,666,305 km (0.09 R)
- M58: 30,843,341 km (0.118 R)
- M59: 31,810,940 km (0.111 R)
- M60: 32,411,276 km (0.082 R)
- M61: 32,637,319 km (0.076 R)
- M62: 34,158,131 km (0.071 R)
- M63: 36,013,294 km (0.065 R)
- M64: 39,096,955 km (0.117 R)
- M65: 41,117,723 km (0.077 R)
- M66: 41,771,615 km (0.093 R)
- M67: 42,428,798 km (0.084 R)
- M68: 42,593,655 km (0.057 R)
- M69: 42,923,967 km (0.111 R)
- M70: 43,836,814 km (0.117 R)
- M71: 44,588,393 km (0.095 R)
- M72: 45,175,864 km (0.092 R)
- M73: 46,868,564 km (0.064 R)
- M74: 47,294,918 km (0.091 R)
- M75: 47,551,478 km (0.106 R)
- M76: 48,151,665 km (0.109 R)
- M77: 48,495,740 km (0.058 R)
- M78: 48,840,713 km (0.118 R)
- M79: 49,446,285 km (0.088 R)
- M80: 52,069,783 km (0.109 R)
- M81: 52,422,834 km (0.097 R)
- M82: 52,865,494 km (0.059 R)
- M83: 54,022,185 km (0.038 R)
- M84: 54,290,264 km (0.111 R)
- M85: 55,187,103 km (0.037 R)
- M86: 55,547,185 km (0.118 R)
- M87: 56,360,250 km (0.084 R)
- M88: 56,904,487 km (0.097 R)
- M89: 57,177,204 km (0.09 R)
- M90: 57,815,388 km (0.073 R)
- M91: 58,089,601 km (0.096 R)
- M92: 58,455,966 km (0.117 R)
- M93: 59,559,550 km (0.066 R)
- M94: 59,651,852 km (0.116 R)
- M95: 60,021,358 km (0.091 R)
- M96: 62,629,448 km (0.08 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: 527 - 17,790 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.