G3V Star System Generated (Seed: 1766395011)
Star Details
Spectral Class: G9V
Temperature: 5,240 K
Mass: 0.91 sol
Luminosity: 0.72 lux
Habitable Zone (HZ)
Inner Boundary: 0.81 AU
Outer Boundary: 1.17 AU
Physical Limits
Snow Line: 4.07 AU
Max System Radius: 19.1 AU
Planetary System (6 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 1.55 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 2.96
Radius: 1.54
Gravity: 1.25 G
Time & Orbit
Eccentricity (e): 0.096
Orbit Range: 1.4 AU - 1.7 AU
Year: 739 Days
Day: 16.9 Hours
Environment
Temp: -65 °C
Axial Tilt: 10.3 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Satellites (1)
Outer Limit: 79,876,209 km
- M1: 194,328 km (0.106 R)
Planet 2 - Gas Giant
Semi-Major Axis: 4.09 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 912.7
Radius: 8.9
Gravity: 11.52 G
Time & Orbit
Eccentricity (e): 0.11
Orbit Range: 3.64 AU - 4.54 AU
Year: 3167 Days
Day: 10.5 Hours
Environment
Temp: -132 °C
Axial Tilt: 24.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (78)
Outer Limit: 79,876,209 km
- M1: 112,797 km (0.085 R)
- M2: 213,027 km (0.117 R)
- M3: 284,236 km (0.052 R)
- M4: 391,647 km (0.106 R)
- M5: 917,185 km (0.12 R)
- M6: 976,575 km (0.118 R)
- M7: 1,320,800 km (0.066 R)
- M8: 1,457,682 km (0.111 R)
- M9: 1,701,377 km (0.053 R)
- M10: 1,805,646 km (0.113 R)
- M11: 2,243,818 km (0.115 R)
- M12: 2,872,130 km (0.105 R)
- M13: 3,105,502 km (0.109 R)
- M14: 3,178,506 km (0.082 R)
- M15: 3,514,353 km (0.088 R)
- M16: 3,705,838 km (0.074 R)
- M17: 4,589,064 km (0.11 R)
- M18: 4,904,566 km (0.06 R)
- M19: 5,402,129 km (0.117 R)
- M20: 5,490,391 km (0.114 R)
- M21: 5,870,520 km (0.099 R)
- M22: 6,585,747 km (0.105 R)
- M23: 6,703,630 km (0.118 R)
- M24: 7,352,586 km (0.097 R)
- M25: 7,821,425 km (0.087 R)
- M26: 7,896,224 km (0.065 R)
- M27: 7,996,455 km (0.077 R)
- M28: 8,248,976 km (0.041 R)
- M29: 8,376,284 km (0.055 R)
- M30: 8,478,459 km (0.113 R)
- M31: 8,787,678 km (0.037 R)
- M32: 8,865,619 km (0.12 R)
- M33: 9,153,295 km (0.097 R)
- M34: 9,470,443 km (0.092 R)
- M35: 9,630,513 km (0.07 R)
- M36: 10,115,808 km (0.119 R)
- M37: 10,279,468 km (0.052 R)
- M38: 10,471,402 km (0.041 R)
- M39: 10,692,209 km (0.092 R)
- M40: 10,831,035 km (0.116 R)
- M41: 11,026,410 km (0.051 R)
- M42: 11,082,360 km (0.061 R)
- M43: 11,138,459 km (0.04 R)
- M44: 11,848,002 km (0.073 R)
- M45: 11,991,616 km (0.113 R)
- M46: 12,135,978 km (0.115 R)
- M47: 13,669,954 km (0.072 R)
- M48: 14,490,349 km (0.036 R)
- M49: 14,705,620 km (0.039 R)
- M50: 15,015,138 km (0.078 R)
- M51: 15,139,454 km (0.083 R)
- M52: 15,232,953 km (0.119 R)
- M53: 15,766,568 km (0.058 R)
- M54: 15,987,973 km (0.081 R)
- M55: 16,916,378 km (0.048 R)
- M56: 17,045,929 km (0.075 R)
- M57: 17,273,169 km (0.034 R)
- M58: 18,126,325 km (0.096 R)
- M59: 18,192,447 km (0.063 R)
- M60: 18,258,719 km (0.091 R)
- M61: 18,591,425 km (0.111 R)
- M62: 19,093,924 km (0.058 R)
- M63: 19,567,102 km (0.058 R)
- M64: 19,771,154 km (0.066 R)
- M65: 19,975,804 km (0.109 R)
- M66: 21,498,112 km (0.111 R)
- M67: 21,708,596 km (0.084 R)
- M68: 21,778,907 km (0.119 R)
- M69: 21,919,828 km (0.091 R)
- M70: 21,990,289 km (0.045 R)
- M71: 22,486,206 km (0.104 R)
- M72: 23,129,327 km (0.108 R)
- M73: 23,417,003 km (0.119 R)
- M74: 23,597,419 km (0.118 R)
- M75: 23,959,745 km (0.076 R)
- M76: 24,032,449 km (0.096 R)
- M77: 24,214,360 km (0.09 R)
- M78: 24,323,866 km (0.063 R)
Planet 3 - Gas Giant
Semi-Major Axis: 5.58 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 589.4
Radius: 11.3
Gravity: 4.62 G
Time & Orbit
Eccentricity (e): 0.148
Orbit Range: 4.75 AU - 6.41 AU
Year: 5047 Days
Day: 7.5 Hours
Environment
Temp: -160 °C
Axial Tilt: 34 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (79)
Outer Limit: 79,876,209 km
- M1: 178,321 km (0.071 R)
- M2: 268,079 km (0.116 R)
- M3: 397,033 km (0.063 R)
- M4: 573,857 km (0.082 R)
- M5: 696,079 km (0.076 R)
- M6: 840,740 km (0.062 R)
- M7: 982,559 km (0.078 R)
- M8: 1,426,715 km (0.116 R)
- M9: 1,519,765 km (0.105 R)
- M10: 1,761,365 km (0.111 R)
- M11: 2,068,041 km (0.092 R)
- M12: 2,245,913 km (0.11 R)
- M13: 2,391,920 km (0.113 R)
- M14: 2,770,852 km (0.027 R)
- M15: 3,169,081 km (0.084 R)
- M16: 3,354,134 km (0.094 R)
- M17: 3,735,309 km (0.052 R)
- M18: 3,821,926 km (0.109 R)
- M19: 3,975,264 km (0.115 R)
- M20: 4,220,156 km (0.083 R)
- M21: 4,631,849 km (0.064 R)
- M22: 4,725,049 km (0.071 R)
- M23: 4,960,965 km (0.09 R)
- M24: 5,128,365 km (0.107 R)
- M25: 5,224,855 km (0.05 R)
- M26: 5,567,584 km (0.111 R)
- M27: 5,666,917 km (0.075 R)
- M28: 5,816,814 km (0.089 R)
- M29: 5,968,207 km (0.036 R)
- M30: 6,069,934 km (0.077 R)
- M31: 6,223,421 km (0.101 R)
- M32: 7,252,954 km (0.066 R)
- M33: 7,773,554 km (0.089 R)
- M34: 8,620,129 km (0.028 R)
- M35: 8,996,068 km (0.111 R)
- M36: 9,112,904 km (0.09 R)
- M37: 9,824,092 km (0.073 R)
- M38: 10,247,305 km (0.08 R)
- M39: 11,615,975 km (0.116 R)
- M40: 12,257,002 km (0.074 R)
- M41: 12,843,725 km (0.095 R)
- M42: 13,107,466 km (0.118 R)
- M43: 13,240,010 km (0.1 R)
- M44: 14,248,150 km (0.066 R)
- M45: 14,350,475 km (0.073 R)
- M46: 15,385,692 km (0.113 R)
- M47: 15,771,356 km (0.09 R)
- M48: 16,338,032 km (0.075 R)
- M49: 16,480,749 km (0.062 R)
- M50: 16,695,571 km (0.1 R)
- M51: 16,803,282 km (0.087 R)
- M52: 16,911,291 km (0.101 R)
- M53: 17,164,261 km (0.091 R)
- M54: 17,236,667 km (0.115 R)
- M55: 17,309,371 km (0.05 R)
- M56: 17,454,780 km (0.113 R)
- M57: 19,194,753 km (0.046 R)
- M58: 19,270,001 km (0.077 R)
- M59: 19,989,866 km (0.03 R)
- M60: 20,526,025 km (0.062 R)
- M61: 20,680,110 km (0.107 R)
- M62: 21,144,462 km (0.11 R)
- M63: 21,456,075 km (0.115 R)
- M64: 21,690,794 km (0.087 R)
- M65: 22,241,613 km (0.059 R)
- M66: 22,916,748 km (0.111 R)
- M67: 23,316,923 km (0.095 R)
- M68: 23,437,498 km (0.105 R)
- M69: 23,921,747 km (0.078 R)
- M70: 24,083,911 km (0.093 R)
- M71: 24,859,127 km (0.063 R)
- M72: 25,023,385 km (0.115 R)
- M73: 25,683,860 km (0.037 R)
- M74: 26,266,693 km (0.076 R)
- M75: 26,937,939 km (0.082 R)
- M76: 27,318,067 km (0.054 R)
- M77: 27,487,562 km (0.117 R)
- M78: 27,742,476 km (0.085 R)
- M79: 28,856,232 km (0.112 R)
Planet 4 - Gas Giant
Semi-Major Axis: 8.48 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 276.3
Radius: 10.2
Gravity: 2.66 G
Time & Orbit
Eccentricity (e): 0.038
Orbit Range: 8.16 AU - 8.8 AU
Year: 9455 Days
Day: 12.8 Hours
Environment
Temp: -185 °C
Axial Tilt: 33.1 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (84)
Outer Limit: 79,876,209 km
- M1: 146,756 km (0.082 R)
- M2: 237,711 km (0.026 R)
- M3: 677,230 km (0.068 R)
- M4: 742,903 km (0.11 R)
- M5: 811,120 km (0.078 R)
- M6: 1,044,642 km (0.108 R)
- M7: 1,153,699 km (0.101 R)
- M8: 1,539,811 km (0.099 R)
- M9: 2,201,033 km (0.045 R)
- M10: 2,404,935 km (0.071 R)
- M11: 2,897,561 km (0.076 R)
- M12: 3,212,764 km (0.047 R)
- M13: 3,491,764 km (0.108 R)
- M14: 3,586,609 km (0.111 R)
- M15: 3,730,373 km (0.115 R)
- M16: 4,048,567 km (0.039 R)
- M17: 4,452,332 km (0.066 R)
- M18: 4,555,255 km (0.106 R)
- M19: 4,922,069 km (0.102 R)
- M20: 5,028,583 km (0.099 R)
- M21: 5,545,294 km (0.102 R)
- M22: 6,541,167 km (0.059 R)
- M23: 7,074,633 km (0.057 R)
- M24: 7,255,646 km (0.079 R)
- M25: 7,653,128 km (0.077 R)
- M26: 8,057,641 km (0.104 R)
- M27: 8,405,306 km (0.098 R)
- M28: 9,778,016 km (0.077 R)
- M29: 10,939,494 km (0.078 R)
- M30: 11,254,248 km (0.104 R)
- M31: 11,501,234 km (0.108 R)
- M32: 11,678,657 km (0.08 R)
- M33: 11,785,470 km (0.054 R)
- M34: 12,000,292 km (0.102 R)
- M35: 12,144,206 km (0.113 R)
- M36: 12,689,041 km (0.069 R)
- M37: 13,279,055 km (0.113 R)
- M38: 13,502,554 km (0.038 R)
- M39: 13,614,753 km (0.092 R)
- M40: 13,840,197 km (0.12 R)
- M41: 14,332,822 km (0.117 R)
- M42: 14,715,793 km (0.102 R)
- M43: 14,908,475 km (0.1 R)
- M44: 15,140,800 km (0.073 R)
- M45: 15,413,517 km (0.08 R)
- M46: 15,530,802 km (0.103 R)
- M47: 15,727,075 km (0.116 R)
- M48: 16,480,150 km (0.115 R)
- M49: 16,600,277 km (0.053 R)
- M50: 16,962,005 km (0.102 R)
- M51: 17,042,638 km (0.079 R)
- M52: 17,164,112 km (0.086 R)
- M53: 18,976,789 km (0.086 R)
- M54: 19,481,682 km (0.057 R)
- M55: 19,566,354 km (0.115 R)
- M56: 19,991,063 km (0.09 R)
- M57: 21,066,223 km (0.085 R)
- M58: 21,588,918 km (0.078 R)
- M59: 21,676,432 km (0.105 R)
- M60: 22,469,600 km (0.107 R)
- M61: 22,558,312 km (0.101 R)
- M62: 22,736,184 km (0.113 R)
- M63: 23,767,511 km (0.079 R)
- M64: 24,676,618 km (0.045 R)
- M65: 24,768,171 km (0.076 R)
- M66: 25,043,581 km (0.109 R)
- M67: 25,227,736 km (0.054 R)
- M68: 25,597,243 km (0.086 R)
- M69: 27,282,463 km (0.113 R)
- M70: 28,042,869 km (0.027 R)
- M71: 28,281,926 km (0.113 R)
- M72: 28,377,818 km (0.064 R)
- M73: 28,810,306 km (0.103 R)
- M74: 30,120,933 km (0.103 R)
- M75: 30,365,825 km (0.093 R)
- M76: 30,513,029 km (0.102 R)
- M77: 30,758,968 km (0.116 R)
- M78: 31,005,505 km (0.026 R)
- M79: 31,451,008 km (0.061 R)
- M80: 31,848,788 km (0.08 R)
- M81: 32,148,283 km (0.094 R)
- M82: 32,749,816 km (0.117 R)
- M83: 33,608,508 km (0.055 R)
- M84: 33,964,252 km (0.05 R)
Planet 5 - Ice Giant
Semi-Major Axis: 11.9 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 926.9
Radius: 8
Gravity: 14.48 G
Time & Orbit
Eccentricity (e): 0.045
Orbit Range: 11.36 AU - 12.44 AU
Year: 15718 Days
Day: 20 Hours
Environment
Temp: -193 °C
Axial Tilt: 14.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (93)
Outer Limit: 79,876,209 km
- M1: 218,114 km (0.091 R)
- M2: 317,297 km (0.056 R)
- M3: 693,685 km (0.084 R)
- M4: 997,668 km (0.036 R)
- M5: 2,534,637 km (0.095 R)
- M6: 2,818,125 km (0.044 R)
- M7: 2,890,680 km (0.075 R)
- M8: 3,338,725 km (0.055 R)
- M9: 3,610,245 km (0.092 R)
- M10: 3,728,727 km (0.094 R)
- M11: 4,051,260 km (0.118 R)
- M12: 4,551,814 km (0.118 R)
- M13: 4,852,805 km (0.066 R)
- M14: 4,983,853 km (0.032 R)
- M15: 5,384,027 km (0.058 R)
- M16: 6,215,044 km (0.095 R)
- M17: 6,597,266 km (0.102 R)
- M18: 6,888,982 km (0.057 R)
- M19: 7,135,220 km (0.073 R)
- M20: 7,384,300 km (0.119 R)
- M21: 7,788,963 km (0.117 R)
- M22: 8,619,829 km (0.101 R)
- M23: 8,672,787 km (0.086 R)
- M24: 9,045,884 km (0.055 R)
- M25: 10,817,422 km (0.079 R)
- M26: 11,046,307 km (0.04 R)
- M27: 11,161,348 km (0.104 R)
- M28: 11,508,714 km (0.109 R)
- M29: 11,977,554 km (0.114 R)
- M30: 14,414,054 km (0.103 R)
- M31: 14,792,387 km (0.1 R)
- M32: 15,752,506 km (0.114 R)
- M33: 16,469,379 km (0.113 R)
- M34: 17,063,732 km (0.098 R)
- M35: 17,330,165 km (0.078 R)
- M36: 18,137,844 km (0.065 R)
- M37: 18,341,597 km (0.034 R)
- M38: 18,957,641 km (0.065 R)
- M39: 19,580,566 km (0.064 R)
- M40: 22,574,468 km (0.081 R)
- M41: 22,647,472 km (0.11 R)
- M42: 24,949,634 km (0.117 R)
- M43: 26,320,100 km (0.103 R)
- M44: 26,782,357 km (0.102 R)
- M45: 28,342,513 km (0.085 R)
- M46: 28,421,351 km (0.083 R)
- M47: 28,500,190 km (0.071 R)
- M48: 28,658,015 km (0.084 R)
- M49: 29,691,737 km (0.03 R)
- M50: 30,818,358 km (0.058 R)
- M51: 32,287,559 km (0.081 R)
- M52: 32,452,116 km (0.1 R)
- M53: 33,113,489 km (0.117 R)
- M54: 33,362,719 km (0.052 R)
- M55: 33,612,547 km (0.108 R)
- M56: 33,779,349 km (0.05 R)
- M57: 34,113,999 km (0.119 R)
- M58: 34,786,442 km (0.115 R)
- M59: 35,124,234 km (0.105 R)
- M60: 38,474,927 km (0.042 R)
- M61: 38,736,873 km (0.038 R)
- M62: 40,409,676 km (0.094 R)
- M63: 43,279,711 km (0.069 R)
- M64: 45,567,362 km (0.039 R)
- M65: 46,679,323 km (0.105 R)
- M66: 46,865,423 km (0.077 R)
- M67: 47,145,171 km (0.096 R)
- M68: 47,425,517 km (0.1 R)
- M69: 47,800,110 km (0.11 R)
- M70: 48,081,803 km (0.081 R)
- M71: 49,498,046 km (0.073 R)
- M72: 50,545,381 km (0.036 R)
- M73: 51,215,579 km (0.109 R)
- M74: 53,633,380 km (0.086 R)
- M75: 54,512,866 km (0.087 R)
- M76: 55,989,097 km (0.111 R)
- M77: 56,385,083 km (0.059 R)
- M78: 57,578,425 km (0.041 R)
- M79: 58,178,163 km (0.113 R)
- M80: 58,378,475 km (0.109 R)
- M81: 59,686,558 km (0.107 R)
- M82: 60,091,071 km (0.07 R)
- M83: 60,902,640 km (0.101 R)
- M84: 61,207,969 km (0.091 R)
- M85: 62,844,719 km (0.108 R)
- M86: 64,081,744 km (0.09 R)
- M87: 64,806,994 km (0.106 R)
- M88: 68,051,623 km (0.08 R)
- M89: 69,215,644 km (0.055 R)
- M90: 69,746,866 km (0.12 R)
- M91: 69,853,230 km (0.117 R)
- M92: 70,279,434 km (0.095 R)
- M93: 70,599,723 km (0.094 R)
Planet 6 - Ice Giant
Semi-Major Axis: 15.52 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 578.4
Radius: 6.5
Gravity: 13.69 G
Time & Orbit
Eccentricity (e): 0.034
Orbit Range: 14.99 AU - 16.05 AU
Year: 23410 Days
Day: 20.3 Hours
Environment
Temp: -199 °C
Axial Tilt: 10 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (91)
Outer Limit: 79,876,209 km
- M1: 172,935 km (0.118 R)
- M2: 227,389 km (0.116 R)
- M3: 323,730 km (0.11 R)
- M4: 767,736 km (0.113 R)
- M5: 1,253,630 km (0.051 R)
- M6: 1,687,165 km (0.09 R)
- M7: 2,604,200 km (0.052 R)
- M8: 2,834,730 km (0.099 R)
- M9: 3,315,238 km (0.118 R)
- M10: 3,523,030 km (0.094 R)
- M11: 3,692,225 km (0.116 R)
- M12: 3,995,011 km (0.11 R)
- M13: 4,856,246 km (0.086 R)
- M14: 4,903,220 km (0.111 R)
- M15: 5,429,056 km (0.085 R)
- M16: 5,624,581 km (0.043 R)
- M17: 5,922,430 km (0.109 R)
- M18: 6,378,853 km (0.062 R)
- M19: 6,430,315 km (0.09 R)
- M20: 6,846,496 km (0.088 R)
- M21: 9,113,203 km (0.119 R)
- M22: 9,345,828 km (0.074 R)
- M23: 9,698,280 km (0.071 R)
- M24: 9,816,762 km (0.116 R)
- M25: 11,089,690 km (0.108 R)
- M26: 11,275,790 km (0.077 R)
- M27: 12,478,108 km (0.027 R)
- M28: 12,801,239 km (0.08 R)
- M29: 14,255,331 km (0.08 R)
- M30: 14,661,040 km (0.112 R)
- M31: 14,865,241 km (0.119 R)
- M32: 15,276,486 km (0.08 R)
- M33: 16,321,128 km (0.109 R)
- M34: 16,532,659 km (0.079 R)
- M35: 17,676,933 km (0.107 R)
- M36: 17,749,339 km (0.106 R)
- M37: 21,106,016 km (0.072 R)
- M38: 21,182,759 km (0.111 R)
- M39: 21,568,123 km (0.083 R)
- M40: 21,722,957 km (0.117 R)
- M41: 22,816,667 km (0.072 R)
- M42: 24,088,399 km (0.113 R)
- M43: 24,894,881 km (0.109 R)
- M44: 25,383,019 km (0.106 R)
- M45: 25,546,380 km (0.075 R)
- M46: 25,628,210 km (0.077 R)
- M47: 26,534,174 km (0.083 R)
- M48: 27,032,784 km (0.108 R)
- M49: 27,283,211 km (0.076 R)
- M50: 27,450,611 km (0.099 R)
- M51: 27,534,535 km (0.112 R)
- M52: 28,039,279 km (0.102 R)
- M53: 28,887,349 km (0.12 R)
- M54: 28,972,620 km (0.118 R)
- M55: 32,274,245 km (0.09 R)
- M56: 33,073,546 km (0.095 R)
- M57: 33,341,326 km (0.094 R)
- M58: 34,510,434 km (0.063 R)
- M59: 37,817,295 km (0.105 R)
- M60: 39,697,590 km (0.112 R)
- M61: 40,458,295 km (0.064 R)
- M62: 42,671,745 km (0.098 R)
- M63: 43,744,213 km (0.067 R)
- M64: 44,924,241 km (0.057 R)
- M65: 46,114,740 km (0.063 R)
- M66: 47,014,422 km (0.099 R)
- M67: 51,598,849 km (0.11 R)
- M68: 52,324,698 km (0.049 R)
- M69: 52,532,639 km (0.099 R)
- M70: 52,845,149 km (0.118 R)
- M71: 53,996,304 km (0.079 R)
- M72: 54,416,973 km (0.105 R)
- M73: 54,944,456 km (0.06 R)
- M74: 56,110,571 km (0.107 R)
- M75: 58,036,344 km (0.03 R)
- M76: 60,201,474 km (0.112 R)
- M77: 62,282,680 km (0.112 R)
- M78: 62,834,247 km (0.112 R)
- M79: 63,942,319 km (0.099 R)
- M80: 64,275,922 km (0.079 R)
- M81: 68,666,021 km (0.093 R)
- M82: 69,921,596 km (0.047 R)
- M83: 70,150,780 km (0.095 R)
- M84: 71,992,629 km (0.093 R)
- M85: 73,151,863 km (0.118 R)
- M86: 74,668,037 km (0.087 R)
- M87: 76,548,333 km (0.095 R)
- M88: 76,784,548 km (0.103 R)
- M89: 78,206,326 km (0.114 R)
- M90: 78,325,256 km (0.095 R)
- M91: 79,517,402 km (0.078 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: 163 - 17,195 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.