G0V Star System Generated (Seed: 1766955376)
Star Details
Spectral Class: G4V
Temperature: 5,640 K
Mass: 1.01 sol
Luminosity: 1.04 lux
Habitable Zone (HZ)
Inner Boundary: 0.97 AU
Outer Boundary: 1.4 AU
Physical Limits
Snow Line: 4.9 AU
Max System Radius: 20.1 AU
Planetary System (8 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 2.82 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 0.63
Radius: 0.83
Gravity: 0.91 G
Time & Orbit
Eccentricity (e): 0.244
Orbit Range: 2.13 AU - 3.51 AU
Year: 1721 Days
Day: 43.1 Hours
Environment
Temp: -90 °C
Axial Tilt: 1.5 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Satellites (1)
Outer Limit: 50,536,019 km
- M1: 321,635 km (0.102 R)
Planet 2 - Terrestrial
Semi-Major Axis: 3.59 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 1.18
Radius: 1.07
Gravity: 1.03 G
Time & Orbit
Eccentricity (e): 0.195
Orbit Range: 2.89 AU - 4.29 AU
Year: 2472 Days
Day: 16.5 Hours
Environment
Temp: -114 °C
Axial Tilt: 18.3 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Planet 3 - Terrestrial
Semi-Major Axis: 4.26 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 3.35
Radius: 1.62
Gravity: 1.28 G
Time & Orbit
Eccentricity (e): 0.18
Orbit Range: 3.49 AU - 5.03 AU
Year: 3196 Days
Day: 18.4 Hours
Environment
Temp: -118 °C
Axial Tilt: 24.3 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Planet 4 - Gas Giant
Semi-Major Axis: 5.2 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 197
Radius: 13.9
Gravity: 1.02 G
Time & Orbit
Eccentricity (e): 0.183
Orbit Range: 4.25 AU - 6.15 AU
Year: 4310 Days
Day: 10.2 Hours
Environment
Temp: -134 °C
Axial Tilt: 14.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (64)
Outer Limit: 50,536,019 km
- M1: 216,019 km (0.11 R)
- M2: 397,182 km (0.098 R)
- M3: 496,964 km (0.054 R)
- M4: 655,538 km (0.093 R)
- M5: 772,523 km (0.09 R)
- M6: 934,687 km (0.114 R)
- M7: 1,232,387 km (0.066 R)
- M8: 1,606,980 km (0.088 R)
- M9: 1,905,727 km (0.058 R)
- M10: 2,132,069 km (0.103 R)
- M11: 2,274,935 km (0.096 R)
- M12: 3,199,150 km (0.109 R)
- M13: 3,701,799 km (0.102 R)
- M14: 3,811,604 km (0.067 R)
- M15: 4,164,057 km (0.101 R)
- M16: 4,477,165 km (0.069 R)
- M17: 4,832,161 km (0.071 R)
- M18: 5,302,347 km (0.079 R)
- M19: 5,569,828 km (0.107 R)
- M20: 5,696,388 km (0.108 R)
- M21: 6,025,802 km (0.114 R)
- M22: 6,137,103 km (0.075 R)
- M23: 6,646,185 km (0.03 R)
- M24: 6,993,401 km (0.064 R)
- M25: 7,090,789 km (0.08 R)
- M26: 7,465,383 km (0.106 R)
- M27: 7,685,291 km (0.049 R)
- M28: 7,907,295 km (0.072 R)
- M29: 8,090,552 km (0.035 R)
- M30: 8,544,582 km (0.094 R)
- M31: 9,326,829 km (0.11 R)
- M32: 9,498,866 km (0.096 R)
- M33: 9,628,717 km (0.096 R)
- M34: 10,043,851 km (0.096 R)
- M35: 10,353,369 km (0.083 R)
- M36: 10,442,530 km (0.05 R)
- M37: 10,598,860 km (0.101 R)
- M38: 10,846,294 km (0.117 R)
- M39: 11,027,457 km (0.106 R)
- M40: 11,164,040 km (0.077 R)
- M41: 11,278,183 km (0.093 R)
- M42: 11,507,816 km (0.117 R)
- M43: 11,831,845 km (0.084 R)
- M44: 11,971,719 km (0.116 R)
- M45: 12,560,237 km (0.101 R)
- M46: 13,134,095 km (0.113 R)
- M47: 13,327,375 km (0.067 R)
- M48: 13,814,466 km (0.081 R)
- M49: 14,060,255 km (0.079 R)
- M50: 14,431,707 km (0.063 R)
- M51: 14,731,202 km (0.045 R)
- M52: 14,931,962 km (0.103 R)
- M53: 15,032,791 km (0.074 R)
- M54: 15,133,620 km (0.111 R)
- M55: 15,310,893 km (0.09 R)
- M56: 15,412,470 km (0.108 R)
- M57: 15,769,860 km (0.045 R)
- M58: 15,923,945 km (0.119 R)
- M59: 16,233,463 km (0.09 R)
- M60: 16,388,896 km (0.12 R)
- M61: 16,858,483 km (0.099 R)
- M62: 17,094,848 km (0.06 R)
- M63: 17,385,367 km (0.051 R)
- M64: 17,810,823 km (0.119 R)
Planet 5 - Gas Giant
Semi-Major Axis: 6.35 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 693.4
Radius: 10.4
Gravity: 6.41 G
Time & Orbit
Eccentricity (e): 0.112
Orbit Range: 5.64 AU - 7.06 AU
Year: 5816 Days
Day: 5.5 Hours
Environment
Temp: -154 °C
Axial Tilt: 22.8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (77)
Outer Limit: 50,536,019 km
- M1: 203,304 km (0.026 R)
- M2: 480,658 km (0.08 R)
- M3: 682,914 km (0.076 R)
- M4: 747,989 km (0.104 R)
- M5: 1,169,855 km (0.115 R)
- M6: 1,398,142 km (0.101 R)
- M7: 1,605,484 km (0.084 R)
- M8: 1,731,296 km (0.071 R)
- M9: 1,804,599 km (0.117 R)
- M10: 1,973,645 km (0.095 R)
- M11: 2,307,248 km (0.082 R)
- M12: 2,470,609 km (0.068 R)
- M13: 2,873,925 km (0.108 R)
- M14: 3,161,901 km (0.102 R)
- M15: 3,459,301 km (0.109 R)
- M16: 3,623,260 km (0.047 R)
- M17: 4,155,230 km (0.043 R)
- M18: 4,686,004 km (0.084 R)
- M19: 5,131,506 km (0.05 R)
- M20: 5,291,875 km (0.073 R)
- M21: 5,563,096 km (0.085 R)
- M22: 5,783,454 km (0.091 R)
- M23: 6,119,301 km (0.098 R)
- M24: 6,548,048 km (0.085 R)
- M25: 6,634,965 km (0.09 R)
- M26: 6,809,994 km (0.058 R)
- M27: 7,374,427 km (0.11 R)
- M28: 7,708,030 km (0.085 R)
- M29: 8,453,177 km (0.039 R)
- M30: 8,834,353 km (0.061 R)
- M31: 9,449,499 km (0.111 R)
- M32: 10,145,428 km (0.064 R)
- M33: 10,448,663 km (0.071 R)
- M34: 10,584,498 km (0.039 R)
- M35: 10,995,443 km (0.09 R)
- M36: 11,341,763 km (0.041 R)
- M37: 12,259,246 km (0.053 R)
- M38: 12,438,315 km (0.092 R)
- M39: 13,017,558 km (0.119 R)
- M40: 13,310,471 km (0.082 R)
- M41: 13,716,778 km (0.113 R)
- M42: 14,052,326 km (0.077 R)
- M43: 15,190,018 km (0.062 R)
- M44: 15,421,147 km (0.112 R)
- M45: 15,614,577 km (0.038 R)
- M46: 15,808,905 km (0.114 R)
- M47: 15,964,935 km (0.09 R)
- M48: 16,160,759 km (0.113 R)
- M49: 16,396,675 km (0.084 R)
- M50: 16,832,154 km (0.069 R)
- M51: 17,958,028 km (0.116 R)
- M52: 18,080,099 km (0.071 R)
- M53: 18,202,471 km (0.029 R)
- M54: 19,025,109 km (0.109 R)
- M55: 19,733,904 km (0.117 R)
- M56: 19,943,939 km (0.036 R)
- M57: 20,791,860 km (0.105 R)
- M58: 21,091,505 km (0.061 R)
- M59: 21,435,580 km (0.069 R)
- M60: 21,651,599 km (0.074 R)
- M61: 22,347,678 km (0.049 R)
- M62: 22,435,193 km (0.049 R)
- M63: 22,654,503 km (0.045 R)
- M64: 23,095,368 km (0.045 R)
- M65: 23,494,495 km (0.117 R)
- M66: 23,628,086 km (0.099 R)
- M67: 23,761,827 km (0.078 R)
- M68: 24,164,843 km (0.059 R)
- M69: 27,188,216 km (0.093 R)
- M70: 28,886,900 km (0.12 R)
- M71: 29,125,509 km (0.078 R)
- M72: 29,364,865 km (0.112 R)
- M73: 30,280,255 km (0.102 R)
- M74: 30,960,626 km (0.101 R)
- M75: 32,188,226 km (0.084 R)
- M76: 32,932,475 km (0.073 R)
- M77: 33,531,914 km (0.044 R)
Planet 6 - Gas Giant
Semi-Major Axis: 8.34 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 650.5
Radius: 13.4
Gravity: 3.62 G
Time & Orbit
Eccentricity (e): 0.211
Orbit Range: 6.58 AU - 10.1 AU
Year: 8753 Days
Day: 9.7 Hours
Environment
Temp: -160 °C
Axial Tilt: 13.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (84)
Outer Limit: 50,536,019 km
- M1: 177,573 km (0.117 R)
- M2: 270,323 km (0.1 R)
- M3: 389,852 km (0.098 R)
- M4: 510,278 km (0.054 R)
- M5: 632,500 km (0.048 R)
- M6: 720,613 km (0.088 R)
- M7: 813,663 km (0.095 R)
- M8: 1,175,091 km (0.107 R)
- M9: 2,019,272 km (0.082 R)
- M10: 2,489,009 km (0.119 R)
- M11: 3,501,189 km (0.059 R)
- M12: 3,779,740 km (0.111 R)
- M13: 3,950,431 km (0.083 R)
- M14: 5,090,367 km (0.069 R)
- M15: 5,216,029 km (0.098 R)
- M16: 5,696,687 km (0.096 R)
- M17: 5,959,082 km (0.063 R)
- M18: 6,058,415 km (0.071 R)
- M19: 6,360,004 km (0.108 R)
- M20: 6,461,581 km (0.115 R)
- M21: 7,012,699 km (0.069 R)
- M22: 7,614,980 km (0.067 R)
- M23: 7,831,598 km (0.076 R)
- M24: 8,755,963 km (0.095 R)
- M25: 8,983,053 km (0.084 R)
- M26: 9,250,384 km (0.103 R)
- M27: 10,107,730 km (0.117 R)
- M28: 10,425,924 km (0.109 R)
- M29: 10,868,734 km (0.107 R)
- M30: 10,990,507 km (0.092 R)
- M31: 11,235,548 km (0.028 R)
- M32: 11,689,578 km (0.028 R)
- M33: 11,981,593 km (0.117 R)
- M34: 12,107,554 km (0.11 R)
- M35: 12,829,364 km (0.084 R)
- M36: 12,958,317 km (0.116 R)
- M37: 13,303,888 km (0.077 R)
- M38: 14,137,298 km (0.046 R)
- M39: 14,403,881 km (0.086 R)
- M40: 14,672,260 km (0.112 R)
- M41: 14,762,019 km (0.062 R)
- M42: 15,395,865 km (0.068 R)
- M43: 15,532,897 km (0.105 R)
- M44: 15,946,385 km (0.118 R)
- M45: 16,972,178 km (0.104 R)
- M46: 17,113,847 km (0.092 R)
- M47: 17,827,429 km (0.091 R)
- M48: 18,891,818 km (0.101 R)
- M49: 19,431,716 km (0.097 R)
- M50: 19,579,818 km (0.097 R)
- M51: 19,926,885 km (0.105 R)
- M52: 20,426,243 km (0.081 R)
- M53: 20,929,789 km (0.036 R)
- M54: 21,132,345 km (0.104 R)
- M55: 21,692,888 km (0.042 R)
- M56: 22,258,218 km (0.073 R)
- M57: 22,620,395 km (0.114 R)
- M58: 22,828,336 km (0.108 R)
- M59: 23,089,085 km (0.034 R)
- M60: 23,403,390 km (0.104 R)
- M61: 23,930,274 km (0.117 R)
- M62: 24,781,486 km (0.117 R)
- M63: 25,210,832 km (0.074 R)
- M64: 25,967,946 km (0.065 R)
- M65: 27,228,308 km (0.067 R)
- M66: 27,560,266 km (0.07 R)
- M67: 27,671,268 km (0.047 R)
- M68: 28,060,970 km (0.074 R)
- M69: 28,620,616 km (0.119 R)
- M70: 29,071,055 km (0.111 R)
- M71: 29,410,493 km (0.11 R)
- M72: 30,093,257 km (0.045 R)
- M73: 31,939,295 km (0.098 R)
- M74: 32,934,869 km (0.11 R)
- M75: 33,052,602 km (0.039 R)
- M76: 33,288,668 km (0.065 R)
- M77: 33,762,444 km (0.11 R)
- M78: 34,059,546 km (0.116 R)
- M79: 34,298,005 km (0.049 R)
- M80: 34,656,740 km (0.059 R)
- M81: 37,816,696 km (0.101 R)
- M82: 38,745,250 km (0.115 R)
- M83: 39,431,007 km (0.11 R)
- M84: 41,321,625 km (0.068 R)
Planet 7 - Gas Giant
Semi-Major Axis: 8.98 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 270
Radius: 13.5
Gravity: 1.48 G
Time & Orbit
Eccentricity (e): 0.139
Orbit Range: 7.73 AU - 10.23 AU
Year: 9780 Days
Day: 8.9 Hours
Environment
Temp: -161 °C
Axial Tilt: 48.8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (84)
Outer Limit: 50,536,019 km
- M1: 202,406 km (0.056 R)
- M2: 320,738 km (0.075 R)
- M3: 485,894 km (0.095 R)
- M4: 765,492 km (0.059 R)
- M5: 1,340,397 km (0.116 R)
- M6: 1,494,333 km (0.086 R)
- M7: 1,820,456 km (0.109 R)
- M8: 2,394,015 km (0.073 R)
- M9: 2,498,584 km (0.083 R)
- M10: 2,909,828 km (0.08 R)
- M11: 3,135,123 km (0.118 R)
- M12: 3,226,976 km (0.088 R)
- M13: 3,507,771 km (0.091 R)
- M14: 3,699,555 km (0.077 R)
- M15: 4,346,716 km (0.119 R)
- M16: 5,110,263 km (0.093 R)
- M17: 5,410,805 km (0.098 R)
- M18: 5,605,133 km (0.08 R)
- M19: 5,943,823 km (0.111 R)
- M20: 6,347,288 km (0.03 R)
- M21: 6,552,536 km (0.072 R)
- M22: 6,789,649 km (0.099 R)
- M23: 7,090,191 km (0.055 R)
- M24: 7,211,665 km (0.091 R)
- M25: 7,333,736 km (0.057 R)
- M26: 7,487,373 km (0.086 R)
- M27: 7,642,207 km (0.104 R)
- M28: 7,829,354 km (0.08 R)
- M29: 8,017,997 km (0.071 R)
- M30: 9,480,615 km (0.06 R)
- M31: 10,156,798 km (0.1 R)
- M32: 10,535,580 km (0.115 R)
- M33: 10,639,550 km (0.07 R)
- M34: 11,627,495 km (0.119 R)
- M35: 11,879,118 km (0.076 R)
- M36: 12,023,779 km (0.118 R)
- M37: 12,718,512 km (0.088 R)
- M38: 13,015,015 km (0.118 R)
- M39: 13,126,764 km (0.076 R)
- M40: 13,238,813 km (0.078 R)
- M41: 13,728,297 km (0.035 R)
- M42: 13,918,137 km (0.077 R)
- M43: 15,467,971 km (0.115 R)
- M44: 15,586,453 km (0.03 R)
- M45: 15,784,520 km (0.11 R)
- M46: 16,383,809 km (0.03 R)
- M47: 16,585,318 km (0.115 R)
- M48: 16,787,574 km (0.115 R)
- M49: 16,990,578 km (0.114 R)
- M50: 17,399,280 km (0.082 R)
- M51: 17,728,544 km (0.114 R)
- M52: 17,894,000 km (0.065 R)
- M53: 18,018,316 km (0.119 R)
- M54: 18,939,390 km (0.071 R)
- M55: 19,108,435 km (0.097 R)
- M56: 19,405,686 km (0.056 R)
- M57: 20,827,165 km (0.103 R)
- M58: 22,014,972 km (0.066 R)
- M59: 23,134,413 km (0.11 R)
- M60: 23,451,261 km (0.104 R)
- M61: 23,587,395 km (0.115 R)
- M62: 24,272,404 km (0.095 R)
- M63: 24,364,257 km (0.069 R)
- M64: 25,103,121 km (0.105 R)
- M65: 25,335,447 km (0.065 R)
- M66: 25,428,646 km (0.108 R)
- M67: 26,177,982 km (0.105 R)
- M68: 26,887,076 km (0.098 R)
- M69: 27,411,117 km (0.118 R)
- M70: 27,986,620 km (0.113 R)
- M71: 28,324,262 km (0.115 R)
- M72: 28,760,340 km (0.091 R)
- M73: 29,052,206 km (0.089 R)
- M74: 29,688,146 km (0.097 R)
- M75: 30,526,642 km (0.031 R)
- M76: 30,725,009 km (0.105 R)
- M77: 30,973,641 km (0.099 R)
- M78: 32,732,762 km (0.036 R)
- M79: 32,834,189 km (0.108 R)
- M80: 33,190,382 km (0.081 R)
- M81: 33,752,421 km (0.116 R)
- M82: 33,855,045 km (0.079 R)
- M83: 33,957,669 km (0.097 R)
- M84: 34,472,436 km (0.095 R)
Planet 8 - Gas Giant
Semi-Major Axis: 9.82 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 641.8
Radius: 9.7
Gravity: 6.82 G
Time & Orbit
Eccentricity (e): 0.057
Orbit Range: 9.26 AU - 10.38 AU
Year: 11184 Days
Day: 12.7 Hours
Environment
Temp: -184 °C
Axial Tilt: 38.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (91)
Outer Limit: 50,536,019 km
- M1: 144,063 km (0.09 R)
- M2: 806,781 km (0.091 R)
- M3: 936,931 km (0.081 R)
- M4: 1,282,802 km (0.092 R)
- M5: 1,934,899 km (0.047 R)
- M6: 2,112,472 km (0.066 R)
- M7: 2,295,430 km (0.104 R)
- M8: 2,733,303 km (0.088 R)
- M9: 3,407,839 km (0.085 R)
- M10: 3,970,776 km (0.106 R)
- M11: 4,197,417 km (0.105 R)
- M12: 4,329,063 km (0.115 R)
- M13: 4,461,906 km (0.104 R)
- M14: 4,903,220 km (0.04 R)
- M15: 5,287,537 km (0.09 R)
- M16: 5,537,216 km (0.067 R)
- M17: 5,827,286 km (0.081 R)
- M18: 6,234,491 km (0.115 R)
- M19: 6,881,652 km (0.044 R)
- M20: 7,115,324 km (0.113 R)
- M21: 7,272,401 km (0.109 R)
- M22: 7,351,539 km (0.115 R)
- M23: 7,750,965 km (0.105 R)
- M24: 8,075,592 km (0.115 R)
- M25: 8,280,841 km (0.108 R)
- M26: 9,634,552 km (0.116 R)
- M27: 10,739,182 km (0.045 R)
- M28: 10,919,747 km (0.102 R)
- M29: 11,651,729 km (0.099 R)
- M30: 11,883,756 km (0.113 R)
- M31: 12,305,173 km (0.049 R)
- M32: 12,636,383 km (0.034 R)
- M33: 13,550,276 km (0.069 R)
- M34: 13,647,664 km (0.113 R)
- M35: 15,900,907 km (0.03 R)
- M36: 16,365,259 km (0.099 R)
- M37: 16,781,740 km (0.08 R)
- M38: 17,043,835 km (0.113 R)
- M39: 17,149,152 km (0.115 R)
- M40: 17,254,618 km (0.049 R)
- M41: 17,572,215 km (0.082 R)
- M42: 17,731,686 km (0.061 R)
- M43: 18,159,536 km (0.046 R)
- M44: 18,482,518 km (0.111 R)
- M45: 19,079,862 km (0.069 R)
- M46: 19,408,229 km (0.029 R)
- M47: 19,573,236 km (0.044 R)
- M48: 20,237,600 km (0.072 R)
- M49: 20,349,050 km (0.085 R)
- M50: 21,930,749 km (0.055 R)
- M51: 22,159,933 km (0.111 R)
- M52: 22,794,228 km (0.064 R)
- M53: 23,317,671 km (0.117 R)
- M54: 23,434,506 km (0.091 R)
- M55: 23,786,211 km (0.118 R)
- M56: 25,933,240 km (0.08 R)
- M57: 27,583,903 km (0.105 R)
- M58: 28,640,512 km (0.107 R)
- M59: 28,891,089 km (0.096 R)
- M60: 29,142,264 km (0.092 R)
- M61: 29,836,996 km (0.072 R)
- M62: 30,091,013 km (0.091 R)
- M63: 30,345,778 km (0.12 R)
- M64: 32,409,032 km (0.105 R)
- M65: 34,251,330 km (0.079 R)
- M66: 34,317,752 km (0.087 R)
- M67: 34,717,178 km (0.097 R)
- M68: 34,984,360 km (0.054 R)
- M69: 35,319,160 km (0.09 R)
- M70: 35,520,668 km (0.115 R)
- M71: 35,857,263 km (0.104 R)
- M72: 36,127,287 km (0.064 R)
- M73: 36,262,673 km (0.109 R)
- M74: 36,533,745 km (0.092 R)
- M75: 36,737,347 km (0.084 R)
- M76: 38,174,085 km (0.035 R)
- M77: 39,211,696 km (0.115 R)
- M78: 40,679,700 km (0.071 R)
- M79: 41,597,334 km (0.028 R)
- M80: 42,593,356 km (0.093 R)
- M81: 42,664,864 km (0.078 R)
- M82: 43,813,327 km (0.083 R)
- M83: 43,885,433 km (0.104 R)
- M84: 45,263,229 km (0.092 R)
- M85: 45,920,862 km (0.048 R)
- M86: 46,360,979 km (0.107 R)
- M87: 46,802,591 km (0.087 R)
- M88: 47,319,452 km (0.09 R)
- M89: 47,467,404 km (0.079 R)
- M90: 48,135,508 km (0.11 R)
- M91: 49,706,436 km (0.104 R)
Kuiper Belt
Range: 30.2 - 59.2 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 354 - 19,853 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.