G2V Star System Generated (Seed: 1766686246)
Star Details
Spectral Class: G9V
Temperature: 5,200 K
Mass: 0.9 sol
Luminosity: 0.69 lux
Habitable Zone (HZ)
Inner Boundary: 0.79 AU
Outer Boundary: 1.14 AU
Physical Limits
Snow Line: 3.99 AU
Max System Radius: 19 AU
Planetary System (5 Planets)
Planet 1 - Gas Giant
Semi-Major Axis: 6.81 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 496
Radius: 13.4
Gravity: 2.76 G
Time & Orbit
Eccentricity (e): 0.115
Orbit Range: 6.03 AU - 7.59 AU
Year: 6842 Days
Day: 13.9 Hours
Environment
Temp: -170 °C
Axial Tilt: 31.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (79)
Outer Limit: 86,813,756 km
- M1: 221,704 km (0.099 R)
- M2: 314,156 km (0.08 R)
- M3: 494,720 km (0.039 R)
- M4: 595,549 km (0.058 R)
- M5: 743,352 km (0.053 R)
- M6: 990,787 km (0.07 R)
- M7: 1,218,175 km (0.063 R)
- M8: 1,497,475 km (0.094 R)
- M9: 2,355,119 km (0.106 R)
- M10: 2,497,536 km (0.097 R)
- M11: 2,601,208 km (0.087 R)
- M12: 2,812,739 km (0.086 R)
- M13: 3,163,397 km (0.067 R)
- M14: 3,435,665 km (0.066 R)
- M15: 3,668,589 km (0.116 R)
- M16: 3,955,069 km (0.114 R)
- M17: 4,052,158 km (0.111 R)
- M18: 4,174,678 km (0.028 R)
- M19: 4,524,588 km (0.114 R)
- M20: 4,754,669 km (0.111 R)
- M21: 4,936,281 km (0.064 R)
- M22: 5,252,980 km (0.042 R)
- M23: 5,360,092 km (0.112 R)
- M24: 5,603,637 km (0.05 R)
- M25: 6,672,364 km (0.12 R)
- M26: 6,817,773 km (0.055 R)
- M27: 7,530,009 km (0.118 R)
- M28: 7,711,770 km (0.1 R)
- M29: 9,185,908 km (0.069 R)
- M30: 9,315,459 km (0.093 R)
- M31: 9,445,460 km (0.054 R)
- M32: 9,608,970 km (0.11 R)
- M33: 10,238,628 km (0.096 R)
- M34: 10,916,007 km (0.037 R)
- M35: 11,087,596 km (0.095 R)
- M36: 11,398,909 km (0.082 R)
- M37: 11,503,179 km (0.088 R)
- M38: 12,492,769 km (0.087 R)
- M39: 13,399,332 km (0.085 R)
- M40: 13,509,585 km (0.116 R)
- M41: 14,439,785 km (0.052 R)
- M42: 14,779,821 km (0.043 R)
- M43: 15,699,399 km (0.093 R)
- M44: 17,073,455 km (0.092 R)
- M45: 17,553,515 km (0.098 R)
- M46: 17,674,091 km (0.066 R)
- M47: 18,281,757 km (0.044 R)
- M48: 18,937,445 km (0.11 R)
- M49: 19,226,767 km (0.08 R)
- M50: 19,351,233 km (0.068 R)
- M51: 20,061,523 km (0.109 R)
- M52: 20,567,912 km (0.051 R)
- M53: 20,652,734 km (0.095 R)
- M54: 23,075,023 km (0.032 R)
- M55: 23,163,136 km (0.114 R)
- M56: 23,739,088 km (0.081 R)
- M57: 24,006,419 km (0.056 R)
- M58: 24,364,407 km (0.057 R)
- M59: 24,454,166 km (0.106 R)
- M60: 24,544,074 km (0.105 R)
- M61: 24,814,397 km (0.115 R)
- M62: 25,085,768 km (0.087 R)
- M63: 25,267,230 km (0.119 R)
- M64: 25,403,663 km (0.101 R)
- M65: 26,966,363 km (0.117 R)
- M66: 27,338,562 km (0.103 R)
- M67: 27,572,084 km (0.11 R)
- M68: 27,712,407 km (0.098 R)
- M69: 27,993,950 km (0.082 R)
- M70: 28,512,606 km (0.091 R)
- M71: 28,654,724 km (0.118 R)
- M72: 28,939,409 km (0.098 R)
- M73: 29,463,899 km (0.119 R)
- M74: 29,655,384 km (0.093 R)
- M75: 29,991,381 km (0.106 R)
- M76: 31,936,153 km (0.064 R)
- M77: 32,231,310 km (0.108 R)
- M78: 32,576,881 km (0.088 R)
- M79: 32,923,799 km (0.113 R)
Planet 2 - Gas Giant
Semi-Major Axis: 6.89 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 892.2
Radius: 12
Gravity: 6.2 G
Time & Orbit
Eccentricity (e): 0.239
Orbit Range: 5.24 AU - 8.54 AU
Year: 6963 Days
Day: 10.7 Hours
Environment
Temp: -163 °C
Axial Tilt: 58.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (80)
Outer Limit: 86,813,756 km
- M1: 163,660 km (0.102 R)
- M2: 265,087 km (0.069 R)
- M3: 477,068 km (0.081 R)
- M4: 736,470 km (0.038 R)
- M5: 859,889 km (0.025 R)
- M6: 1,164,619 km (0.114 R)
- M7: 1,387,071 km (0.082 R)
- M8: 1,895,255 km (0.119 R)
- M9: 2,025,705 km (0.098 R)
- M10: 2,114,267 km (0.101 R)
- M11: 2,673,912 km (0.088 R)
- M12: 2,845,651 km (0.096 R)
- M13: 2,920,450 km (0.102 R)
- M14: 3,123,155 km (0.108 R)
- M15: 3,704,642 km (0.11 R)
- M16: 3,980,201 km (0.026 R)
- M17: 4,092,399 km (0.084 R)
- M18: 4,377,383 km (0.091 R)
- M19: 4,639,479 km (0.087 R)
- M20: 4,936,730 km (0.083 R)
- M21: 5,209,596 km (0.113 R)
- M22: 5,834,018 km (0.052 R)
- M23: 6,058,115 km (0.102 R)
- M24: 6,285,205 km (0.103 R)
- M25: 7,187,280 km (0.119 R)
- M26: 7,358,719 km (0.102 R)
- M27: 7,987,479 km (0.109 R)
- M28: 8,093,993 km (0.065 R)
- M29: 8,452,280 km (0.089 R)
- M30: 8,926,056 km (0.082 R)
- M31: 9,633,953 km (0.093 R)
- M32: 9,785,197 km (0.074 R)
- M33: 10,553,831 km (0.045 R)
- M34: 11,143,097 km (0.088 R)
- M35: 12,148,843 km (0.094 R)
- M36: 12,394,632 km (0.066 R)
- M37: 12,849,410 km (0.087 R)
- M38: 13,647,814 km (0.071 R)
- M39: 13,775,421 km (0.102 R)
- M40: 13,860,542 km (0.103 R)
- M41: 15,292,493 km (0.083 R)
- M42: 15,380,905 km (0.036 R)
- M43: 15,958,951 km (0.109 R)
- M44: 17,968,051 km (0.082 R)
- M45: 18,718,284 km (0.118 R)
- M46: 18,954,798 km (0.11 R)
- M47: 20,589,454 km (0.112 R)
- M48: 21,177,224 km (0.119 R)
- M49: 22,169,058 km (0.076 R)
- M50: 22,419,335 km (0.062 R)
- M51: 22,821,754 km (0.112 R)
- M52: 23,736,096 km (0.106 R)
- M53: 23,889,583 km (0.084 R)
- M54: 24,558,734 km (0.097 R)
- M55: 24,765,927 km (0.086 R)
- M56: 25,705,402 km (0.111 R)
- M57: 25,810,420 km (0.096 R)
- M58: 26,443,967 km (0.099 R)
- M59: 27,780,474 km (0.093 R)
- M60: 27,942,339 km (0.042 R)
- M61: 28,104,503 km (0.096 R)
- M62: 28,266,966 km (0.032 R)
- M63: 29,193,576 km (0.117 R)
- M64: 29,358,133 km (0.057 R)
- M65: 29,633,094 km (0.096 R)
- M66: 31,020,614 km (0.112 R)
- M67: 31,300,662 km (0.047 R)
- M68: 31,750,502 km (0.065 R)
- M69: 32,429,228 km (0.071 R)
- M70: 32,713,464 km (0.08 R)
- M71: 33,112,890 km (0.053 R)
- M72: 33,456,367 km (0.096 R)
- M73: 34,320,444 km (0.107 R)
- M74: 34,958,778 km (0.085 R)
- M75: 35,133,658 km (0.078 R)
- M76: 35,659,644 km (0.109 R)
- M77: 35,894,363 km (0.071 R)
- M78: 38,569,323 km (0.066 R)
- M79: 38,930,901 km (0.108 R)
- M80: 40,755,247 km (0.096 R)
Planet 3 - Ice Giant
Semi-Major Axis: 13.21 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 338.1
Radius: 3.2
Gravity: 33.02 G
Time & Orbit
Eccentricity (e): 0.037
Orbit Range: 12.72 AU - 13.7 AU
Year: 18485 Days
Day: 21.9 Hours
Environment
Temp: -184 °C
Axial Tilt: 39.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (94)
Outer Limit: 86,813,756 km
- M1: 59,989 km (0.038 R)
- M2: 265,237 km (0.106 R)
- M3: 478,863 km (0.064 R)
- M4: 755,320 km (0.102 R)
- M5: 941,419 km (0.097 R)
- M6: 962,961 km (0.113 R)
- M7: 1,006,494 km (0.043 R)
- M8: 1,656,796 km (0.051 R)
- M9: 1,789,041 km (0.057 R)
- M10: 1,952,103 km (0.109 R)
- M11: 2,712,209 km (0.088 R)
- M12: 2,743,176 km (0.04 R)
- M13: 2,931,071 km (0.098 R)
- M14: 3,187,931 km (0.117 R)
- M15: 3,286,067 km (0.105 R)
- M16: 3,319,128 km (0.064 R)
- M17: 3,352,189 km (0.113 R)
- M18: 3,688,784 km (0.117 R)
- M19: 4,650,399 km (0.049 R)
- M20: 4,724,600 km (0.102 R)
- M21: 4,799,100 km (0.076 R)
- M22: 5,139,435 km (0.106 R)
- M23: 5,216,179 km (0.081 R)
- M24: 5,448,504 km (0.069 R)
- M25: 5,487,549 km (0.101 R)
- M26: 5,565,938 km (0.05 R)
- M27: 5,803,350 km (0.101 R)
- M28: 6,659,798 km (0.035 R)
- M29: 7,381,757 km (0.088 R)
- M30: 7,468,225 km (0.116 R)
- M31: 7,555,141 km (0.11 R)
- M32: 7,950,229 km (0.1 R)
- M33: 8,760,451 km (0.047 R)
- M34: 10,071,826 km (0.087 R)
- M35: 11,443,190 km (0.12 R)
- M36: 11,593,685 km (0.094 R)
- M37: 11,694,215 km (0.104 R)
- M38: 12,201,651 km (0.115 R)
- M39: 14,301,856 km (0.064 R)
- M40: 16,060,528 km (0.111 R)
- M41: 17,136,586 km (0.093 R)
- M42: 17,712,238 km (0.062 R)
- M43: 17,828,027 km (0.094 R)
- M44: 17,886,071 km (0.106 R)
- M45: 18,235,681 km (0.073 R)
- M46: 18,646,327 km (0.106 R)
- M47: 18,764,211 km (0.086 R)
- M48: 19,238,286 km (0.117 R)
- M49: 19,476,745 km (0.042 R)
- M50: 20,440,455 km (0.069 R)
- M51: 20,866,958 km (0.096 R)
- M52: 21,050,515 km (0.091 R)
- M53: 22,163,822 km (0.108 R)
- M54: 22,351,268 km (0.03 R)
- M55: 22,539,163 km (0.119 R)
- M56: 25,878,786 km (0.067 R)
- M57: 25,944,460 km (0.068 R)
- M58: 26,076,106 km (0.082 R)
- M59: 27,203,774 km (0.107 R)
- M60: 28,822,423 km (0.116 R)
- M61: 29,643,566 km (0.062 R)
- M62: 30,819,705 km (0.031 R)
- M63: 32,152,322 km (0.085 R)
- M64: 32,861,117 km (0.106 R)
- M65: 34,511,032 km (0.068 R)
- M66: 34,873,208 km (0.092 R)
- M67: 34,945,763 km (0.047 R)
- M68: 35,018,468 km (0.109 R)
- M69: 35,820,911 km (0.029 R)
- M70: 36,555,586 km (0.049 R)
- M71: 39,695,197 km (0.088 R)
- M72: 40,074,577 km (0.067 R)
- M73: 40,150,722 km (0.098 R)
- M74: 40,226,718 km (0.088 R)
- M75: 40,760,782 km (0.112 R)
- M76: 41,220,197 km (0.026 R)
- M77: 41,681,557 km (0.07 R)
- M78: 41,912,835 km (0.109 R)
- M79: 41,990,028 km (0.064 R)
- M80: 43,075,510 km (0.119 R)
- M81: 44,563,560 km (0.111 R)
- M82: 47,187,656 km (0.06 R)
- M83: 48,721,035 km (0.106 R)
- M84: 49,045,961 km (0.106 R)
- M85: 49,943,100 km (0.077 R)
- M86: 50,763,345 km (0.059 R)
- M87: 51,340,194 km (0.106 R)
- M88: 51,919,287 km (0.11 R)
- M89: 52,833,630 km (0.113 R)
- M90: 53,250,858 km (0.1 R)
- M91: 53,753,208 km (0.09 R)
- M92: 56,373,115 km (0.081 R)
- M93: 56,458,236 km (0.055 R)
- M94: 56,884,890 km (0.102 R)
Planet 4 - Ice Giant
Semi-Major Axis: 13.6 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 294.1
Radius: 6.3
Gravity: 7.41 G
Time & Orbit
Eccentricity (e): 0.153
Orbit Range: 11.52 AU - 15.68 AU
Year: 19310 Days
Day: 18.7 Hours
Environment
Temp: -189 °C
Axial Tilt: 17.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (88)
Outer Limit: 86,813,756 km
- M1: 236,664 km (0.07 R)
- M2: 384,018 km (0.108 R)
- M3: 723,306 km (0.05 R)
- M4: 1,137,692 km (0.116 R)
- M5: 1,666,371 km (0.085 R)
- M6: 1,929,364 km (0.1 R)
- M7: 1,983,518 km (0.101 R)
- M8: 2,065,797 km (0.117 R)
- M9: 2,262,069 km (0.1 R)
- M10: 2,523,417 km (0.1 R)
- M11: 2,733,303 km (0.109 R)
- M12: 2,855,823 km (0.092 R)
- M13: 3,396,620 km (0.094 R)
- M14: 3,594,986 km (0.113 R)
- M15: 3,763,284 km (0.117 R)
- M16: 4,715,774 km (0.074 R)
- M17: 4,974,428 km (0.082 R)
- M18: 5,544,097 km (0.071 R)
- M19: 6,014,732 km (0.062 R)
- M20: 6,295,078 km (0.057 R)
- M21: 6,376,011 km (0.105 R)
- M22: 6,416,552 km (0.1 R)
- M23: 6,498,083 km (0.096 R)
- M24: 6,620,903 km (0.06 R)
- M25: 6,661,892 km (0.096 R)
- M26: 6,827,198 km (0.104 R)
- M27: 10,214,393 km (0.114 R)
- M28: 10,838,366 km (0.084 R)
- M29: 11,179,449 km (0.078 R)
- M30: 11,623,156 km (0.07 R)
- M31: 13,559,102 km (0.114 R)
- M32: 13,663,671 km (0.044 R)
- M33: 15,592,586 km (0.051 R)
- M34: 15,647,339 km (0.09 R)
- M35: 16,032,703 km (0.069 R)
- M36: 17,150,648 km (0.055 R)
- M37: 18,063,195 km (0.04 R)
- M38: 18,235,980 km (0.048 R)
- M39: 18,293,725 km (0.059 R)
- M40: 19,049,793 km (0.108 R)
- M41: 20,592,446 km (0.06 R)
- M42: 21,256,960 km (0.051 R)
- M43: 21,683,613 km (0.115 R)
- M44: 21,805,984 km (0.103 R)
- M45: 23,042,710 km (0.102 R)
- M46: 23,167,624 km (0.11 R)
- M47: 23,606,694 km (0.067 R)
- M48: 24,175,016 km (0.099 R)
- M49: 25,132,442 km (0.097 R)
- M50: 28,278,485 km (0.043 R)
- M51: 28,345,356 km (0.059 R)
- M52: 28,747,624 km (0.028 R)
- M53: 29,422,161 km (0.113 R)
- M54: 30,170,151 km (0.082 R)
- M55: 31,269,396 km (0.086 R)
- M56: 32,311,644 km (0.093 R)
- M57: 32,802,026 km (0.045 R)
- M58: 32,872,187 km (0.085 R)
- M59: 33,012,959 km (0.108 R)
- M60: 33,861,029 km (0.12 R)
- M61: 34,287,682 km (0.089 R)
- M62: 35,002,910 km (0.118 R)
- M63: 35,578,562 km (0.113 R)
- M64: 35,722,924 km (0.103 R)
- M65: 36,447,876 km (0.099 R)
- M66: 37,397,523 km (0.086 R)
- M67: 37,765,085 km (0.112 R)
- M68: 38,059,793 km (0.114 R)
- M69: 38,800,153 km (0.099 R)
- M70: 40,069,640 km (0.09 R)
- M71: 41,808,865 km (0.088 R)
- M72: 42,190,190 km (0.096 R)
- M73: 44,969,569 km (0.066 R)
- M74: 45,203,989 km (0.087 R)
- M75: 45,438,558 km (0.063 R)
- M76: 45,595,337 km (0.051 R)
- M77: 45,673,726 km (0.085 R)
- M78: 46,460,312 km (0.109 R)
- M79: 48,766,512 km (0.093 R)
- M80: 49,007,215 km (0.062 R)
- M81: 49,167,883 km (0.112 R)
- M82: 49,973,917 km (0.091 R)
- M83: 51,517,468 km (0.07 R)
- M84: 52,911,720 km (0.097 R)
- M85: 52,994,148 km (0.107 R)
- M86: 54,152,185 km (0.115 R)
- M87: 54,235,362 km (0.096 R)
- M88: 54,984,548 km (0.114 R)
Planet 5 - Ice Giant
Semi-Major Axis: 15.84 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 690.8
Radius: 3.4
Gravity: 59.76 G
Time & Orbit
Eccentricity (e): 0.07
Orbit Range: 14.73 AU - 16.95 AU
Year: 24272 Days
Day: 24.5 Hours
Environment
Temp: -197 °C
Axial Tilt: 39.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (98)
Outer Limit: 86,813,756 km
- M1: 142,417 km (0.119 R)
- M2: 251,773 km (0.105 R)
- M3: 306,376 km (0.071 R)
- M4: 406,009 km (0.088 R)
- M5: 470,784 km (0.07 R)
- M6: 493,224 km (0.079 R)
- M7: 610,509 km (0.111 R)
- M8: 898,335 km (0.066 R)
- M9: 1,071,270 km (0.052 R)
- M10: 1,547,141 km (0.108 R)
- M11: 2,079,710 km (0.061 R)
- M12: 2,307,398 km (0.043 R)
- M13: 2,745,121 km (0.103 R)
- M14: 2,868,988 km (0.095 R)
- M15: 3,121,958 km (0.103 R)
- M16: 3,382,258 km (0.055 R)
- M17: 3,426,240 km (0.102 R)
- M18: 3,694,469 km (0.072 R)
- M19: 3,831,201 km (0.091 R)
- M20: 4,346,267 km (0.029 R)
- M21: 4,490,629 km (0.03 R)
- M22: 4,539,099 km (0.068 R)
- M23: 5,337,353 km (0.111 R)
- M24: 6,340,257 km (0.074 R)
- M25: 6,835,127 km (0.117 R)
- M26: 6,946,876 km (0.111 R)
- M27: 7,115,473 km (0.11 R)
- M28: 7,920,010 km (0.053 R)
- M29: 8,692,683 km (0.09 R)
- M30: 9,241,408 km (0.085 R)
- M31: 9,488,993 km (0.101 R)
- M32: 10,953,855 km (0.1 R)
- M33: 11,678,956 km (0.072 R)
- M34: 12,148,394 km (0.048 R)
- M35: 13,174,935 km (0.067 R)
- M36: 13,453,486 km (0.09 R)
- M37: 14,086,883 km (0.066 R)
- M38: 14,300,360 km (0.119 R)
- M39: 14,443,076 km (0.045 R)
- M40: 14,946,622 km (0.042 R)
- M41: 15,823,266 km (0.106 R)
- M42: 16,044,970 km (0.097 R)
- M43: 16,342,221 km (0.033 R)
- M44: 16,641,417 km (0.085 R)
- M45: 18,009,489 km (0.068 R)
- M46: 18,395,751 km (0.027 R)
- M47: 18,863,095 km (0.093 R)
- M48: 19,098,113 km (0.099 R)
- M49: 20,288,164 km (0.11 R)
- M50: 21,420,171 km (0.111 R)
- M51: 26,148,661 km (0.116 R)
- M52: 26,498,271 km (0.113 R)
- M53: 27,113,866 km (0.074 R)
- M54: 27,202,129 km (0.109 R)
- M55: 30,628,668 km (0.072 R)
- M56: 31,831,585 km (0.059 R)
- M57: 31,924,784 km (0.115 R)
- M58: 32,579,574 km (0.069 R)
- M59: 32,861,566 km (0.091 R)
- M60: 37,974,671 km (0.088 R)
- M61: 38,271,474 km (0.047 R)
- M62: 38,370,507 km (0.094 R)
- M63: 39,466,013 km (0.059 R)
- M64: 41,382,361 km (0.085 R)
- M65: 43,122,484 km (0.062 R)
- M66: 45,409,686 km (0.119 R)
- M67: 50,534,759 km (0.1 R)
- M68: 50,752,125 km (0.075 R)
- M69: 50,861,032 km (0.095 R)
- M70: 51,734,684 km (0.084 R)
- M71: 51,844,189 km (0.067 R)
- M72: 56,514,784 km (0.113 R)
- M73: 57,419,552 km (0.097 R)
- M74: 59,587,375 km (0.069 R)
- M75: 61,665,738 km (0.094 R)
- M76: 62,480,448 km (0.116 R)
- M77: 63,533,169 km (0.094 R)
- M78: 65,893,225 km (0.11 R)
- M79: 66,130,786 km (0.12 R)
- M80: 70,091,838 km (0.064 R)
- M81: 70,213,162 km (0.08 R)
- M82: 70,455,810 km (0.1 R)
- M83: 71,185,399 km (0.108 R)
- M84: 72,652,206 km (0.082 R)
- M85: 72,775,026 km (0.116 R)
- M86: 74,871,191 km (0.047 R)
- M87: 75,119,075 km (0.026 R)
- M88: 76,612,361 km (0.074 R)
- M89: 76,862,189 km (0.086 R)
- M90: 78,241,033 km (0.075 R)
- M91: 78,870,391 km (0.068 R)
- M92: 79,501,544 km (0.09 R)
- M93: 79,627,955 km (0.1 R)
- M94: 80,261,053 km (0.096 R)
- M95: 81,787,400 km (0.083 R)
- M96: 81,915,007 km (0.108 R)
- M97: 82,298,277 km (0.089 R)
- M98: 82,810,350 km (0.111 R)
Kuiper Belt
Range: 30 - 48 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 445 - 16,880 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.