G7V Star System Generated (Seed: 1768223840)
Star Details
Spectral Class: G8V
Temperature: 5,320 K
Mass: 0.93 sol
Luminosity: 0.78 lux
Habitable Zone (HZ)
Inner Boundary: 0.84 AU
Outer Boundary: 1.21 AU
Physical Limits
Snow Line: 4.24 AU
Max System Radius: 19.3 AU
Planetary System (7 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 0.75 AU
Status: Inner (Hot)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 3.92
Radius: 1.73
Gravity: 1.31 G
Time & Orbit
Eccentricity (e): 0.15
Orbit Range: 0.64 AU - 0.86 AU
Year: 246 Days
Day: 23.1 Hours
Environment
Temp: 119 °C
Axial Tilt: 35.2 °
Atmosphere: Dense COâ‚‚
Biome: Volcanic/Barren
Planet 2 - Terrestrial
Semi-Major Axis: 3.54 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 3.79
Radius: 1.7
Gravity: 1.31 G
Time & Orbit
Eccentricity (e): 0.235
Orbit Range: 2.71 AU - 4.37 AU
Year: 2523 Days
Day: 28.2 Hours
Environment
Temp: -114 °C
Axial Tilt: 44.4 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Planet 3 - Gas Giant
Semi-Major Axis: 4.44 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 833.3
Radius: 11.4
Gravity: 6.41 G
Time & Orbit
Eccentricity (e): 0.046
Orbit Range: 4.24 AU - 4.64 AU
Year: 3543 Days
Day: 5.9 Hours
Environment
Temp: -145 °C
Axial Tilt: 35.7 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (77)
Outer Limit: 106,021,899 km
- M1: 188,643 km (0.079 R)
- M2: 315,801 km (0.043 R)
- M3: 452,683 km (0.094 R)
- M4: 665,112 km (0.052 R)
- M5: 1,109,717 km (0.1 R)
- M6: 1,433,896 km (0.099 R)
- M7: 1,563,298 km (0.112 R)
- M8: 1,636,900 km (0.059 R)
- M9: 1,711,699 km (0.09 R)
- M10: 1,818,661 km (0.088 R)
- M11: 1,959,433 km (0.031 R)
- M12: 2,087,638 km (0.061 R)
- M13: 2,403,739 km (0.099 R)
- M14: 2,558,872 km (0.115 R)
- M15: 2,989,115 km (0.082 R)
- M16: 3,063,016 km (0.094 R)
- M17: 3,137,666 km (0.116 R)
- M18: 3,384,353 km (0.036 R)
- M19: 3,519,888 km (0.032 R)
- M20: 3,796,345 km (0.113 R)
- M21: 3,957,612 km (0.06 R)
- M22: 4,121,122 km (0.063 R)
- M23: 4,370,651 km (0.106 R)
- M24: 4,476,118 km (0.025 R)
- M25: 4,582,332 km (0.096 R)
- M26: 4,711,136 km (0.11 R)
- M27: 4,819,295 km (0.049 R)
- M28: 4,950,194 km (0.088 R)
- M29: 5,060,298 km (0.092 R)
- M30: 5,372,658 km (0.083 R)
- M31: 5,899,691 km (0.101 R)
- M32: 6,515,586 km (0.081 R)
- M33: 6,612,076 km (0.084 R)
- M34: 7,351,539 km (0.104 R)
- M35: 9,123,525 km (0.042 R)
- M36: 9,751,537 km (0.079 R)
- M37: 10,112,816 km (0.069 R)
- M38: 11,309,749 km (0.073 R)
- M39: 11,455,158 km (0.114 R)
- M40: 11,659,957 km (0.062 R)
- M41: 12,311,306 km (0.081 R)
- M42: 12,520,893 km (0.059 R)
- M43: 12,731,826 km (0.116 R)
- M44: 13,866,227 km (0.095 R)
- M45: 14,147,171 km (0.104 R)
- M46: 14,272,534 km (0.036 R)
- M47: 14,492,892 km (0.118 R)
- M48: 14,777,876 km (0.1 R)
- M49: 15,969,124 km (0.055 R)
- M50: 16,230,621 km (0.037 R)
- M51: 16,427,791 km (0.091 R)
- M52: 16,725,042 km (0.043 R)
- M53: 16,924,157 km (0.12 R)
- M54: 17,124,019 km (0.084 R)
- M55: 17,627,267 km (0.114 R)
- M56: 17,931,549 km (0.115 R)
- M57: 18,305,843 km (0.071 R)
- M58: 18,511,091 km (0.089 R)
- M59: 18,751,495 km (0.12 R)
- M60: 19,444,133 km (0.099 R)
- M61: 19,828,749 km (0.036 R)
- M62: 20,251,064 km (0.114 R)
- M63: 20,925,900 km (0.1 R)
- M64: 21,355,844 km (0.12 R)
- M65: 21,788,780 km (0.111 R)
- M66: 22,006,296 km (0.096 R)
- M67: 22,663,329 km (0.057 R)
- M68: 22,810,235 km (0.105 R)
- M69: 22,994,240 km (0.099 R)
- M70: 23,215,794 km (0.085 R)
- M71: 23,549,398 km (0.113 R)
- M72: 23,623,748 km (0.046 R)
- M73: 24,146,443 km (0.115 R)
- M74: 24,296,340 km (0.077 R)
- M75: 24,371,588 km (0.055 R)
- M76: 24,937,516 km (0.092 R)
- M77: 25,584,228 km (0.079 R)
Planet 4 - Gas Giant
Semi-Major Axis: 6.43 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 650.1
Radius: 14.4
Gravity: 3.14 G
Time & Orbit
Eccentricity (e): 0.184
Orbit Range: 5.25 AU - 7.61 AU
Year: 6175 Days
Day: 9.3 Hours
Environment
Temp: -160 °C
Axial Tilt: 33.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (81)
Outer Limit: 106,021,899 km
- M1: 382,821 km (0.065 R)
- M2: 482,004 km (0.052 R)
- M3: 666,010 km (0.091 R)
- M4: 1,066,184 km (0.094 R)
- M5: 1,487,003 km (0.118 R)
- M6: 1,644,978 km (0.081 R)
- M7: 1,790,238 km (0.083 R)
- M8: 1,883,288 km (0.112 R)
- M9: 2,192,806 km (0.031 R)
- M10: 2,292,887 km (0.112 R)
- M11: 2,539,873 km (0.04 R)
- M12: 2,773,993 km (0.091 R)
- M13: 2,926,882 km (0.108 R)
- M14: 3,060,174 km (0.074 R)
- M15: 3,333,041 km (0.119 R)
- M16: 3,637,771 km (0.054 R)
- M17: 3,733,364 km (0.068 R)
- M18: 3,902,859 km (0.104 R)
- M19: 4,025,380 km (0.115 R)
- M20: 4,580,388 km (0.068 R)
- M21: 4,709,939 km (0.098 R)
- M22: 5,106,075 km (0.043 R)
- M23: 5,513,280 km (0.067 R)
- M24: 6,301,362 km (0.084 R)
- M25: 6,474,895 km (0.054 R)
- M26: 6,885,990 km (0.051 R)
- M27: 7,094,829 km (0.086 R)
- M28: 7,549,307 km (0.099 R)
- M29: 7,857,778 km (0.103 R)
- M30: 8,296,399 km (0.11 R)
- M31: 8,550,715 km (0.11 R)
- M32: 8,646,757 km (0.086 R)
- M33: 9,827,383 km (0.06 R)
- M34: 10,164,278 km (0.1 R)
- M35: 10,470,804 km (0.112 R)
- M36: 10,988,562 km (0.12 R)
- M37: 11,093,131 km (0.096 R)
- M38: 11,479,243 km (0.107 R)
- M39: 12,373,539 km (0.079 R)
- M40: 12,591,503 km (0.106 R)
- M41: 13,364,475 km (0.118 R)
- M42: 13,700,472 km (0.087 R)
- M43: 14,077,010 km (0.03 R)
- M44: 14,457,138 km (0.03 R)
- M45: 14,648,474 km (0.119 R)
- M46: 14,763,664 km (0.115 R)
- M47: 14,994,943 km (0.096 R)
- M48: 15,853,335 km (0.087 R)
- M49: 16,050,655 km (0.117 R)
- M50: 17,009,128 km (0.11 R)
- M51: 17,251,626 km (0.095 R)
- M52: 17,454,631 km (0.102 R)
- M53: 18,192,148 km (0.083 R)
- M54: 18,440,182 km (0.119 R)
- M55: 19,107,238 km (0.113 R)
- M56: 20,293,550 km (0.112 R)
- M57: 20,852,447 km (0.086 R)
- M58: 21,459,964 km (0.049 R)
- M59: 21,941,520 km (0.103 R)
- M60: 22,117,447 km (0.116 R)
- M61: 22,692,651 km (0.047 R)
- M62: 23,048,993 km (0.109 R)
- M63: 24,950,531 km (0.107 R)
- M64: 25,734,424 km (0.066 R)
- M65: 26,059,650 km (0.04 R)
- M66: 26,339,398 km (0.097 R)
- M67: 27,421,140 km (0.114 R)
- M68: 27,658,253 km (0.092 R)
- M69: 28,661,456 km (0.045 R)
- M70: 28,998,500 km (0.092 R)
- M71: 29,920,023 km (0.059 R)
- M72: 30,703,617 km (0.103 R)
- M73: 31,097,807 km (0.114 R)
- M74: 31,246,208 km (0.068 R)
- M75: 31,593,126 km (0.096 R)
- M76: 31,742,125 km (0.075 R)
- M77: 31,891,424 km (0.114 R)
- M78: 32,090,987 km (0.063 R)
- M79: 32,190,769 km (0.113 R)
- M80: 32,340,816 km (0.108 R)
- M81: 33,296,297 km (0.099 R)
Planet 5 - Gas Giant
Semi-Major Axis: 6.79 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 521.9
Radius: 10.2
Gravity: 5.02 G
Time & Orbit
Eccentricity (e): 0.18
Orbit Range: 5.57 AU - 8.01 AU
Year: 6701 Days
Day: 6 Hours
Environment
Temp: -157 °C
Axial Tilt: 35.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (80)
Outer Limit: 106,021,899 km
- M1: 127,906 km (0.098 R)
- M2: 309,069 km (0.107 R)
- M3: 435,031 km (0.115 R)
- M4: 545,883 km (0.107 R)
- M5: 693,087 km (0.109 R)
- M6: 969,095 km (0.063 R)
- M7: 1,074,113 km (0.064 R)
- M8: 1,295,817 km (0.076 R)
- M9: 1,710,352 km (0.105 R)
- M10: 1,839,007 km (0.115 R)
- M11: 1,932,954 km (0.08 R)
- M12: 2,762,923 km (0.064 R)
- M13: 3,047,159 km (0.088 R)
- M14: 3,181,498 km (0.114 R)
- M15: 3,363,858 km (0.106 R)
- M16: 3,526,321 km (0.071 R)
- M17: 3,620,268 km (0.089 R)
- M18: 3,762,835 km (0.083 R)
- M19: 4,760,503 km (0.113 R)
- M20: 5,022,300 km (0.107 R)
- M21: 5,863,489 km (0.093 R)
- M22: 6,059,611 km (0.038 R)
- M23: 6,544,608 km (0.091 R)
- M24: 6,777,382 km (0.106 R)
- M25: 7,370,986 km (0.103 R)
- M26: 7,673,922 km (0.056 R)
- M27: 7,765,775 km (0.066 R)
- M28: 8,229,828 km (0.059 R)
- M29: 8,481,152 km (0.115 R)
- M30: 8,926,954 km (0.08 R)
- M31: 9,808,085 km (0.117 R)
- M32: 10,309,687 km (0.108 R)
- M33: 10,888,182 km (0.109 R)
- M34: 10,956,997 km (0.111 R)
- M35: 11,198,747 km (0.056 R)
- M36: 11,582,466 km (0.087 R)
- M37: 11,793,399 km (0.037 R)
- M38: 12,326,715 km (0.07 R)
- M39: 12,398,372 km (0.118 R)
- M40: 12,795,106 km (0.037 R)
- M41: 13,490,437 km (0.067 R)
- M42: 15,648,835 km (0.101 R)
- M43: 15,921,253 km (0.058 R)
- M44: 16,352,543 km (0.067 R)
- M45: 17,669,453 km (0.088 R)
- M46: 17,790,777 km (0.084 R)
- M47: 18,156,694 km (0.119 R)
- M48: 18,648,422 km (0.053 R)
- M49: 18,730,850 km (0.089 R)
- M50: 18,854,568 km (0.118 R)
- M51: 18,937,295 km (0.094 R)
- M52: 19,352,429 km (0.093 R)
- M53: 19,686,781 km (0.113 R)
- M54: 19,770,705 km (0.102 R)
- M55: 20,107,450 km (0.096 R)
- M56: 20,191,973 km (0.1 R)
- M57: 20,658,718 km (0.063 R)
- M58: 21,516,512 km (0.073 R)
- M59: 23,488,960 km (0.11 R)
- M60: 23,577,971 km (0.069 R)
- M61: 24,024,520 km (0.113 R)
- M62: 24,293,946 km (0.113 R)
- M63: 24,474,062 km (0.03 R)
- M64: 25,335,746 km (0.113 R)
- M65: 25,427,000 km (0.036 R)
- M66: 26,716,385 km (0.049 R)
- M67: 26,855,810 km (0.107 R)
- M68: 27,182,083 km (0.057 R)
- M69: 27,697,447 km (0.092 R)
- M70: 27,838,518 km (0.104 R)
- M71: 28,263,227 km (0.095 R)
- M72: 28,832,895 km (0.088 R)
- M73: 29,262,690 km (0.059 R)
- M74: 29,935,432 km (0.081 R)
- M75: 30,176,882 km (0.066 R)
- M76: 31,247,106 km (0.067 R)
- M77: 32,726,629 km (0.119 R)
- M78: 33,125,008 km (0.108 R)
- M79: 33,374,687 km (0.109 R)
- M80: 33,524,883 km (0.033 R)
Planet 6 - Ice Giant
Semi-Major Axis: 13.3 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 348.5
Radius: 5.3
Gravity: 12.41 G
Time & Orbit
Eccentricity (e): 0.206
Orbit Range: 10.56 AU - 16.04 AU
Year: 18371 Days
Day: 18.2 Hours
Environment
Temp: -188 °C
Axial Tilt: 33.9 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (85)
Outer Limit: 106,021,899 km
- M1: 92,601 km (0.101 R)
- M2: 409,599 km (0.12 R)
- M3: 706,850 km (0.067 R)
- M4: 745,745 km (0.056 R)
- M5: 1,363,136 km (0.061 R)
- M6: 1,486,704 km (0.094 R)
- M7: 2,072,529 km (0.083 R)
- M8: 2,214,796 km (0.053 R)
- M9: 2,360,355 km (0.067 R)
- M10: 3,297,137 km (0.073 R)
- M11: 3,396,470 km (0.095 R)
- M12: 3,463,340 km (0.118 R)
- M13: 3,666,494 km (0.11 R)
- M14: 3,700,752 km (0.107 R)
- M15: 5,193,739 km (0.107 R)
- M16: 5,662,130 km (0.111 R)
- M17: 6,062,753 km (0.087 R)
- M18: 6,389,774 km (0.097 R)
- M19: 6,431,063 km (0.113 R)
- M20: 6,722,480 km (0.066 R)
- M21: 7,275,393 km (0.103 R)
- M22: 7,710,424 km (0.108 R)
- M23: 7,975,511 km (0.114 R)
- M24: 8,333,649 km (0.05 R)
- M25: 8,424,006 km (0.061 R)
- M26: 9,205,206 km (0.099 R)
- M27: 9,345,379 km (0.082 R)
- M28: 10,009,145 km (0.117 R)
- M29: 10,541,414 km (0.093 R)
- M30: 11,033,142 km (0.096 R)
- M31: 12,397,774 km (0.11 R)
- M32: 13,389,608 km (0.105 R)
- M33: 14,842,353 km (0.12 R)
- M34: 16,231,519 km (0.097 R)
- M35: 17,142,121 km (0.08 R)
- M36: 17,257,162 km (0.1 R)
- M37: 17,719,718 km (0.068 R)
- M38: 18,656,949 km (0.084 R)
- M39: 20,032,202 km (0.073 R)
- M40: 20,701,353 km (0.102 R)
- M41: 20,885,209 km (0.083 R)
- M42: 21,501,702 km (0.036 R)
- M43: 21,874,500 km (0.078 R)
- M44: 22,563,548 km (0.105 R)
- M45: 25,063,029 km (0.117 R)
- M46: 25,389,900 km (0.095 R)
- M47: 25,981,560 km (0.1 R)
- M48: 27,312,682 km (0.075 R)
- M49: 28,461,444 km (0.108 R)
- M50: 29,419,319 km (0.094 R)
- M51: 29,488,134 km (0.085 R)
- M52: 30,110,012 km (0.066 R)
- M53: 32,497,893 km (0.105 R)
- M54: 32,711,519 km (0.067 R)
- M55: 33,498,703 km (0.066 R)
- M56: 33,642,467 km (0.04 R)
- M57: 34,509,536 km (0.096 R)
- M58: 34,727,500 km (0.1 R)
- M59: 36,413,319 km (0.115 R)
- M60: 38,501,406 km (0.068 R)
- M61: 38,802,845 km (0.1 R)
- M62: 39,559,960 km (0.116 R)
- M63: 39,864,093 km (0.109 R)
- M64: 40,627,939 km (0.087 R)
- M65: 43,574,419 km (0.064 R)
- M66: 46,508,781 km (0.113 R)
- M67: 47,071,120 km (0.067 R)
- M68: 47,151,603 km (0.069 R)
- M69: 47,797,268 km (0.089 R)
- M70: 48,608,537 km (0.026 R)
- M71: 49,834,043 km (0.075 R)
- M72: 50,821,688 km (0.035 R)
- M73: 51,566,685 km (0.082 R)
- M74: 52,065,295 km (0.079 R)
- M75: 52,398,749 km (0.09 R)
- M76: 53,067,451 km (0.041 R)
- M77: 53,570,848 km (0.072 R)
- M78: 54,075,890 km (0.107 R)
- M79: 54,244,637 km (0.106 R)
- M80: 54,751,773 km (0.082 R)
- M81: 55,515,471 km (0.068 R)
- M82: 55,600,442 km (0.082 R)
- M83: 56,796,028 km (0.089 R)
- M84: 57,053,187 km (0.087 R)
- M85: 57,310,944 km (0.103 R)
Planet 7 - Ice Giant
Semi-Major Axis: 18.07 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 875.8
Radius: 5.5
Gravity: 28.95 G
Time & Orbit
Eccentricity (e): 0.047
Orbit Range: 17.22 AU - 18.92 AU
Year: 29093 Days
Day: 21.6 Hours
Environment
Temp: -206 °C
Axial Tilt: 39.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (92)
Outer Limit: 106,021,899 km
- M1: 324,328 km (0.106 R)
- M2: 438,023 km (0.106 R)
- M3: 674,986 km (0.108 R)
- M4: 980,315 km (0.097 R)
- M5: 1,824,196 km (0.059 R)
- M6: 3,570,901 km (0.112 R)
- M7: 3,673,376 km (0.117 R)
- M8: 4,472,827 km (0.099 R)
- M9: 4,750,929 km (0.118 R)
- M10: 5,092,012 km (0.089 R)
- M11: 6,223,720 km (0.084 R)
- M12: 6,347,288 km (0.052 R)
- M13: 7,364,254 km (0.073 R)
- M14: 8,567,769 km (0.025 R)
- M15: 9,902,781 km (0.065 R)
- M16: 10,704,775 km (0.076 R)
- M17: 11,984,884 km (0.048 R)
- M18: 12,917,327 km (0.077 R)
- M19: 13,153,991 km (0.09 R)
- M20: 15,181,641 km (0.12 R)
- M21: 15,515,094 km (0.089 R)
- M22: 15,682,644 km (0.08 R)
- M23: 16,189,033 km (0.087 R)
- M24: 16,700,807 km (0.096 R)
- M25: 17,652,698 km (0.076 R)
- M26: 17,915,392 km (0.118 R)
- M27: 18,622,093 km (0.114 R)
- M28: 23,528,903 km (0.107 R)
- M29: 25,083,973 km (0.084 R)
- M30: 25,477,864 km (0.117 R)
- M31: 26,072,665 km (0.111 R)
- M32: 27,478,137 km (0.101 R)
- M33: 27,579,415 km (0.113 R)
- M34: 27,884,146 km (0.087 R)
- M35: 29,114,289 km (0.095 R)
- M36: 30,048,378 km (0.085 R)
- M37: 31,839,513 km (0.094 R)
- M38: 31,945,877 km (0.098 R)
- M39: 33,016,848 km (0.082 R)
- M40: 33,232,419 km (0.107 R)
- M41: 33,340,279 km (0.119 R)
- M42: 33,881,973 km (0.096 R)
- M43: 35,083,693 km (0.08 R)
- M44: 35,855,618 km (0.053 R)
- M45: 36,077,172 km (0.071 R)
- M46: 36,299,325 km (0.11 R)
- M47: 37,979,010 km (0.083 R)
- M48: 38,091,956 km (0.072 R)
- M49: 40,603,555 km (0.106 R)
- M50: 41,879,176 km (0.071 R)
- M51: 43,168,111 km (0.08 R)
- M52: 43,285,845 km (0.055 R)
- M53: 43,639,943 km (0.081 R)
- M54: 46,506,986 km (0.11 R)
- M55: 47,111,960 km (0.118 R)
- M56: 51,169,204 km (0.07 R)
- M57: 51,668,561 km (0.06 R)
- M58: 53,429,029 km (0.12 R)
- M59: 54,571,059 km (0.056 R)
- M60: 54,698,517 km (0.111 R)
- M61: 55,209,094 km (0.091 R)
- M62: 55,592,962 km (0.079 R)
- M63: 56,106,382 km (0.08 R)
- M64: 57,526,066 km (0.045 R)
- M65: 58,435,621 km (0.119 R)
- M66: 60,400,739 km (0.041 R)
- M67: 62,787,423 km (0.102 R)
- M68: 63,589,716 km (0.085 R)
- M69: 64,799,664 km (0.108 R)
- M70: 65,746,020 km (0.093 R)
- M71: 67,105,715 km (0.077 R)
- M72: 69,438,544 km (0.078 R)
- M73: 75,882,622 km (0.087 R)
- M74: 77,737,935 km (0.082 R)
- M75: 78,599,469 km (0.102 R)
- M76: 80,186,852 km (0.086 R)
- M77: 82,514,595 km (0.1 R)
- M78: 84,127,859 km (0.109 R)
- M79: 86,641,402 km (0.09 R)
- M80: 87,683,501 km (0.101 R)
- M81: 91,741,941 km (0.049 R)
- M82: 93,108,368 km (0.119 R)
- M83: 93,260,509 km (0.102 R)
- M84: 95,093,831 km (0.089 R)
- M85: 95,400,507 km (0.111 R)
- M86: 96,014,905 km (0.107 R)
- M87: 96,476,564 km (0.09 R)
- M88: 96,938,971 km (0.107 R)
- M89: 100,664,407 km (0.043 R)
- M90: 102,230,547 km (0.078 R)
- M91: 103,331,588 km (0.094 R)
- M92: 104,594,792 km (0.072 R)
Kuiper Belt
Range: 30 - 47 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 318 - 17,559 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.