G7V Star System Generated (Seed: 1766430647)
Star Details
Spectral Class: G6V
Temperature: 5,520 K
Mass: 0.98 sol
Luminosity: 0.93 lux
Habitable Zone (HZ)
Inner Boundary: 0.92 AU
Outer Boundary: 1.32 AU
Physical Limits
Snow Line: 4.63 AU
Max System Radius: 19.8 AU
Planetary System (6 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 1.83 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 1.29
Radius: 1.11
Gravity: 1.05 G
Time & Orbit
Eccentricity (e): 0.18
Orbit Range: 1.5 AU - 2.16 AU
Year: 913 Days
Day: 44.2 Hours
Environment
Temp: -58 °C
Axial Tilt: 16 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Planet 2 - Gas Giant
Semi-Major Axis: 5.19 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 357.8
Radius: 11.2
Gravity: 2.85 G
Time & Orbit
Eccentricity (e): 0.222
Orbit Range: 4.04 AU - 6.34 AU
Year: 4362 Days
Day: 8.1 Hours
Environment
Temp: -136 °C
Axial Tilt: 38.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (73)
Outer Limit: 61,921,077 km
- M1: 155,133 km (0.111 R)
- M2: 237,113 km (0.112 R)
- M3: 322,533 km (0.053 R)
- M4: 725,101 km (0.044 R)
- M5: 837,000 km (0.107 R)
- M6: 955,332 km (0.065 R)
- M7: 1,209,499 km (0.112 R)
- M8: 1,295,069 km (0.094 R)
- M9: 1,511,986 km (0.116 R)
- M10: 1,824,346 km (0.071 R)
- M11: 2,217,340 km (0.095 R)
- M12: 2,385,188 km (0.072 R)
- M13: 2,541,518 km (0.101 R)
- M14: 2,782,371 km (0.075 R)
- M15: 3,064,512 km (0.076 R)
- M16: 3,286,665 km (0.106 R)
- M17: 3,603,065 km (0.112 R)
- M18: 3,728,727 km (0.045 R)
- M19: 4,885,418 km (0.046 R)
- M20: 5,410,357 km (0.076 R)
- M21: 5,637,745 km (0.08 R)
- M22: 5,721,371 km (0.104 R)
- M23: 5,995,583 km (0.084 R)
- M24: 6,145,181 km (0.088 R)
- M25: 6,274,284 km (0.113 R)
- M26: 6,777,831 km (0.095 R)
- M27: 6,911,272 km (0.115 R)
- M28: 7,000,881 km (0.114 R)
- M29: 7,226,325 km (0.086 R)
- M30: 7,638,168 km (0.061 R)
- M31: 7,893,681 km (0.119 R)
- M32: 8,034,154 km (0.108 R)
- M33: 8,175,673 km (0.114 R)
- M34: 8,317,791 km (0.082 R)
- M35: 8,389,299 km (0.113 R)
- M36: 8,460,956 km (0.115 R)
- M37: 8,628,805 km (0.061 R)
- M38: 8,822,235 km (0.119 R)
- M39: 8,895,089 km (0.119 R)
- M40: 9,163,917 km (0.111 R)
- M41: 9,237,669 km (0.085 R)
- M42: 9,559,902 km (0.109 R)
- M43: 9,785,047 km (0.09 R)
- M44: 10,037,269 km (0.118 R)
- M45: 10,164,278 km (0.106 R)
- M46: 10,240,722 km (0.059 R)
- M47: 10,471,103 km (0.115 R)
- M48: 10,755,189 km (0.045 R)
- M49: 11,015,490 km (0.103 R)
- M50: 11,304,363 km (0.075 R)
- M51: 11,595,780 km (0.094 R)
- M52: 11,916,518 km (0.081 R)
- M53: 12,703,552 km (0.103 R)
- M54: 12,841,032 km (0.11 R)
- M55: 13,395,592 km (0.093 R)
- M56: 13,647,664 km (0.079 R)
- M57: 14,242,166 km (0.076 R)
- M58: 14,585,643 km (0.106 R)
- M59: 14,758,428 km (0.034 R)
- M60: 14,874,067 km (0.116 R)
- M61: 15,779,883 km (0.1 R)
- M62: 15,868,445 km (0.113 R)
- M63: 16,135,327 km (0.086 R)
- M64: 16,914,582 km (0.11 R)
- M65: 17,065,826 km (0.097 R)
- M66: 17,339,291 km (0.085 R)
- M67: 17,767,440 km (0.067 R)
- M68: 18,540,861 km (0.104 R)
- M69: 18,665,476 km (0.075 R)
- M70: 19,293,488 km (0.077 R)
- M71: 19,992,259 km (0.072 R)
- M72: 20,828,811 km (0.099 R)
- M73: 21,056,050 km (0.099 R)
Planet 3 - Gas Giant
Semi-Major Axis: 7.52 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 968.5
Radius: 10.5
Gravity: 8.78 G
Time & Orbit
Eccentricity (e): 0.079
Orbit Range: 6.93 AU - 8.11 AU
Year: 7609 Days
Day: 11 Hours
Environment
Temp: -160 °C
Axial Tilt: 32.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (83)
Outer Limit: 61,921,077 km
- M1: 137,929 km (0.109 R)
- M2: 257,009 km (0.063 R)
- M3: 615,446 km (0.118 R)
- M4: 1,238,521 km (0.048 R)
- M5: 1,586,934 km (0.102 R)
- M6: 1,851,423 km (0.109 R)
- M7: 1,919,789 km (0.089 R)
- M8: 2,059,065 km (0.099 R)
- M9: 2,153,910 km (0.069 R)
- M10: 2,422,438 km (0.086 R)
- M11: 2,497,536 km (0.113 R)
- M12: 2,701,887 km (0.112 R)
- M13: 2,965,030 km (0.093 R)
- M14: 4,009,971 km (0.06 R)
- M15: 4,099,281 km (0.107 R)
- M16: 4,189,339 km (0.049 R)
- M17: 4,402,217 km (0.047 R)
- M18: 4,556,452 km (0.108 R)
- M19: 4,902,023 km (0.067 R)
- M20: 5,288,734 km (0.097 R)
- M21: 6,333,226 km (0.115 R)
- M22: 6,507,507 km (0.072 R)
- M23: 6,648,279 km (0.106 R)
- M24: 6,896,911 km (0.114 R)
- M25: 8,034,453 km (0.093 R)
- M26: 8,644,214 km (0.098 R)
- M27: 8,837,793 km (0.06 R)
- M28: 9,150,603 km (0.108 R)
- M29: 10,355,913 km (0.085 R)
- M30: 10,977,193 km (0.097 R)
- M31: 12,169,188 km (0.111 R)
- M32: 12,386,404 km (0.1 R)
- M33: 12,473,620 km (0.046 R)
- M34: 12,560,985 km (0.118 R)
- M35: 13,357,145 km (0.12 R)
- M36: 13,536,214 km (0.101 R)
- M37: 13,942,222 km (0.114 R)
- M38: 14,169,611 km (0.06 R)
- M39: 14,398,047 km (0.107 R)
- M40: 14,489,900 km (0.062 R)
- M41: 14,581,753 km (0.08 R)
- M42: 14,673,906 km (0.098 R)
- M43: 14,858,809 km (0.062 R)
- M44: 15,090,984 km (0.054 R)
- M45: 15,700,297 km (0.064 R)
- M46: 16,126,800 km (0.12 R)
- M47: 16,317,687 km (0.108 R)
- M48: 16,461,301 km (0.084 R)
- M49: 17,625,172 km (0.094 R)
- M50: 18,216,982 km (0.049 R)
- M51: 18,515,429 km (0.119 R)
- M52: 18,765,407 km (0.113 R)
- M53: 21,955,881 km (0.116 R)
- M54: 23,667,131 km (0.111 R)
- M55: 24,429,332 km (0.061 R)
- M56: 24,923,454 km (0.11 R)
- M57: 25,144,261 km (0.098 R)
- M58: 25,421,017 km (0.111 R)
- M59: 26,089,420 km (0.069 R)
- M60: 26,820,205 km (0.063 R)
- M61: 28,359,119 km (0.09 R)
- M62: 28,589,649 km (0.026 R)
- M63: 29,751,127 km (0.099 R)
- M64: 31,462,527 km (0.115 R)
- M65: 31,641,446 km (0.095 R)
- M66: 32,903,004 km (0.104 R)
- M67: 33,084,616 km (0.109 R)
- M68: 34,671,999 km (0.119 R)
- M69: 35,351,174 km (0.119 R)
- M70: 35,599,207 km (0.101 R)
- M71: 35,723,373 km (0.114 R)
- M72: 36,034,537 km (0.114 R)
- M73: 36,284,216 km (0.096 R)
- M74: 36,534,493 km (0.086 R)
- M75: 38,301,842 km (0.093 R)
- M76: 38,492,879 km (0.119 R)
- M77: 39,710,007 km (0.084 R)
- M78: 39,838,811 km (0.117 R)
- M79: 40,290,895 km (0.061 R)
- M80: 40,939,701 km (0.116 R)
- M81: 41,330,601 km (0.107 R)
- M82: 43,835,168 km (0.061 R)
- M83: 44,837,324 km (0.088 R)
Planet 4 - Gas Giant
Semi-Major Axis: 8.16 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 884.1
Radius: 9.6
Gravity: 9.59 G
Time & Orbit
Eccentricity (e): 0.193
Orbit Range: 6.59 AU - 9.73 AU
Year: 8600 Days
Day: 6.7 Hours
Environment
Temp: -170 °C
Axial Tilt: 32.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (89)
Outer Limit: 61,921,077 km
- M1: 135,984 km (0.08 R)
- M2: 401,670 km (0.098 R)
- M3: 539,151 km (0.067 R)
- M4: 677,678 km (0.106 R)
- M5: 899,532 km (0.089 R)
- M6: 972,685 km (0.096 R)
- M7: 1,327,382 km (0.098 R)
- M8: 1,585,887 km (0.06 R)
- M9: 1,721,124 km (0.049 R)
- M10: 1,955,394 km (0.039 R)
- M11: 2,076,418 km (0.118 R)
- M12: 2,150,170 km (0.098 R)
- M13: 2,611,979 km (0.06 R)
- M14: 2,827,101 km (0.052 R)
- M15: 2,964,431 km (0.12 R)
- M16: 3,390,037 km (0.099 R)
- M17: 4,079,983 km (0.114 R)
- M18: 4,585,324 km (0.098 R)
- M19: 4,779,951 km (0.029 R)
- M20: 4,977,271 km (0.109 R)
- M21: 5,110,413 km (0.08 R)
- M22: 5,177,283 km (0.078 R)
- M23: 5,482,463 km (0.107 R)
- M24: 5,551,128 km (0.054 R)
- M25: 5,723,914 km (0.045 R)
- M26: 5,793,477 km (0.118 R)
- M27: 5,968,805 km (0.102 R)
- M28: 6,181,534 km (0.088 R)
- M29: 6,945,530 km (0.108 R)
- M30: 7,509,514 km (0.083 R)
- M31: 8,402,763 km (0.065 R)
- M32: 8,482,050 km (0.057 R)
- M33: 8,761,349 km (0.092 R)
- M34: 9,003,398 km (0.1 R)
- M35: 9,535,069 km (0.067 R)
- M36: 10,288,145 km (0.099 R)
- M37: 10,757,732 km (0.091 R)
- M38: 11,497,195 km (0.069 R)
- M39: 11,585,308 km (0.111 R)
- M40: 13,532,923 km (0.057 R)
- M41: 14,854,769 km (0.116 R)
- M42: 14,998,982 km (0.114 R)
- M43: 15,095,173 km (0.03 R)
- M44: 15,433,863 km (0.031 R)
- M45: 15,628,639 km (0.046 R)
- M46: 16,514,707 km (0.094 R)
- M47: 16,614,190 km (0.09 R)
- M48: 16,713,822 km (0.117 R)
- M49: 17,670,650 km (0.116 R)
- M50: 18,284,001 km (0.067 R)
- M51: 19,060,564 km (0.052 R)
- M52: 20,006,621 km (0.116 R)
- M53: 20,432,077 km (0.065 R)
- M54: 20,699,409 km (0.033 R)
- M55: 21,944,362 km (0.095 R)
- M56: 23,046,450 km (0.097 R)
- M57: 23,324,851 km (0.093 R)
- M58: 24,847,010 km (0.079 R)
- M59: 25,018,150 km (0.051 R)
- M60: 25,764,344 km (0.082 R)
- M61: 25,995,323 km (0.087 R)
- M62: 26,459,375 km (0.071 R)
- M63: 26,809,285 km (0.092 R)
- M64: 26,984,913 km (0.115 R)
- M65: 27,809,047 km (0.1 R)
- M66: 27,927,529 km (0.104 R)
- M67: 30,148,309 km (0.114 R)
- M68: 30,574,813 km (0.107 R)
- M69: 30,880,740 km (0.105 R)
- M70: 30,941,926 km (0.111 R)
- M71: 31,557,222 km (0.107 R)
- M72: 31,680,640 km (0.094 R)
- M73: 32,737,250 km (0.106 R)
- M74: 32,924,846 km (0.096 R)
- M75: 33,301,234 km (0.035 R)
- M76: 34,184,909 km (0.094 R)
- M77: 37,077,234 km (0.109 R)
- M78: 38,519,657 km (0.091 R)
- M79: 39,980,181 km (0.08 R)
- M80: 41,188,782 km (0.096 R)
- M81: 41,323,869 km (0.108 R)
- M82: 42,001,098 km (0.119 R)
- M83: 44,331,384 km (0.106 R)
- M84: 44,677,554 km (0.09 R)
- M85: 45,163,747 km (0.1 R)
- M86: 46,001,345 km (0.083 R)
- M87: 46,211,530 km (0.098 R)
- M88: 46,351,853 km (0.088 R)
- M89: 46,985,101 km (0.071 R)
Planet 5 - Gas Giant
Semi-Major Axis: 10.99 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 580.6
Radius: 11.8
Gravity: 4.17 G
Time & Orbit
Eccentricity (e): 0.04
Orbit Range: 10.55 AU - 11.43 AU
Year: 13442 Days
Day: 10.2 Hours
Environment
Temp: -175 °C
Axial Tilt: 10.9 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (86)
Outer Limit: 61,921,077 km
- M1: 155,731 km (0.1 R)
- M2: 404,961 km (0.106 R)
- M3: 762,800 km (0.12 R)
- M4: 977,024 km (0.089 R)
- M5: 1,211,294 km (0.119 R)
- M6: 1,659,489 km (0.046 R)
- M7: 1,837,361 km (0.098 R)
- M8: 1,968,259 km (0.089 R)
- M9: 2,129,825 km (0.08 R)
- M10: 2,239,929 km (0.117 R)
- M11: 2,759,482 km (0.098 R)
- M12: 3,640,464 km (0.1 R)
- M13: 5,374,154 km (0.11 R)
- M14: 5,832,971 km (0.119 R)
- M15: 5,910,612 km (0.043 R)
- M16: 6,185,423 km (0.113 R)
- M17: 6,264,710 km (0.114 R)
- M18: 6,384,239 km (0.09 R)
- M19: 7,621,413 km (0.113 R)
- M20: 7,834,889 km (0.103 R)
- M21: 8,442,705 km (0.084 R)
- M22: 8,707,942 km (0.095 R)
- M23: 8,841,683 km (0.075 R)
- M24: 8,976,022 km (0.085 R)
- M25: 9,065,930 km (0.094 R)
- M26: 9,201,466 km (0.098 R)
- M27: 9,474,332 km (0.039 R)
- M28: 9,703,965 km (0.118 R)
- M29: 12,800,940 km (0.063 R)
- M30: 14,087,332 km (0.038 R)
- M31: 14,192,051 km (0.092 R)
- M32: 14,825,598 km (0.114 R)
- M33: 14,931,962 km (0.093 R)
- M34: 15,468,420 km (0.105 R)
- M35: 16,065,615 km (0.111 R)
- M36: 17,282,743 km (0.045 R)
- M37: 17,732,733 km (0.106 R)
- M38: 18,472,046 km (0.052 R)
- M39: 18,874,464 km (0.084 R)
- M40: 19,279,575 km (0.068 R)
- M41: 19,395,962 km (0.118 R)
- M42: 20,809,812 km (0.068 R)
- M43: 21,048,720 km (0.07 R)
- M44: 21,168,547 km (0.102 R)
- M45: 21,589,516 km (0.077 R)
- M46: 21,892,003 km (0.114 R)
- M47: 22,869,176 km (0.12 R)
- M48: 23,798,179 km (0.096 R)
- M49: 23,923,093 km (0.088 R)
- M50: 24,739,598 km (0.111 R)
- M51: 26,464,611 km (0.104 R)
- M52: 26,658,789 km (0.12 R)
- M53: 26,918,192 km (0.074 R)
- M54: 27,833,133 km (0.05 R)
- M55: 28,294,343 km (0.119 R)
- M56: 29,024,231 km (0.074 R)
- M57: 29,492,023 km (0.092 R)
- M58: 29,827,571 km (0.079 R)
- M59: 32,835,386 km (0.097 R)
- M60: 33,043,926 km (0.085 R)
- M61: 33,812,560 km (0.101 R)
- M62: 34,728,398 km (0.107 R)
- M63: 35,153,854 km (0.084 R)
- M64: 35,652,464 km (0.117 R)
- M65: 36,010,003 km (0.109 R)
- M66: 38,986,551 km (0.092 R)
- M67: 39,355,011 km (0.085 R)
- M68: 40,467,122 km (0.116 R)
- M69: 40,765,420 km (0.108 R)
- M70: 40,989,517 km (0.118 R)
- M71: 41,214,213 km (0.089 R)
- M72: 42,192,284 km (0.115 R)
- M73: 42,646,314 km (0.058 R)
- M74: 45,481,493 km (0.119 R)
- M75: 46,648,206 km (0.111 R)
- M76: 47,588,728 km (0.098 R)
- M77: 48,693,808 km (0.113 R)
- M78: 49,169,978 km (0.048 R)
- M79: 49,887,300 km (0.082 R)
- M80: 51,090,216 km (0.065 R)
- M81: 52,384,088 km (0.094 R)
- M82: 52,871,927 km (0.12 R)
- M83: 53,116,519 km (0.094 R)
- M84: 54,098,480 km (0.047 R)
- M85: 54,838,839 km (0.109 R)
- M86: 55,169,002 km (0.104 R)
Planet 6 - Gas Giant
Semi-Major Axis: 11.96 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 634.1
Radius: 11.4
Gravity: 4.88 G
Time & Orbit
Eccentricity (e): 0.079
Orbit Range: 11.02 AU - 12.9 AU
Year: 15261 Days
Day: 10.1 Hours
Environment
Temp: -176 °C
Axial Tilt: 25.1 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (95)
Outer Limit: 61,921,077 km
- M1: 223,050 km (0.098 R)
- M2: 546,331 km (0.086 R)
- M3: 874,400 km (0.084 R)
- M4: 1,095,505 km (0.052 R)
- M5: 1,754,484 km (0.114 R)
- M6: 1,950,756 km (0.105 R)
- M7: 3,004,224 km (0.087 R)
- M8: 3,377,920 km (0.065 R)
- M9: 4,433,931 km (0.112 R)
- M10: 5,017,812 km (0.111 R)
- M11: 5,258,216 km (0.082 R)
- M12: 5,502,509 km (0.097 R)
- M13: 6,560,315 km (0.096 R)
- M14: 6,691,363 km (0.046 R)
- M15: 6,867,589 km (0.119 R)
- M16: 7,633,680 km (0.114 R)
- M17: 8,190,783 km (0.115 R)
- M18: 8,761,050 km (0.076 R)
- M19: 9,197,277 km (0.079 R)
- M20: 9,344,182 km (0.068 R)
- M21: 9,889,766 km (0.09 R)
- M22: 10,242,368 km (0.1 R)
- M23: 10,856,617 km (0.072 R)
- M24: 11,168,079 km (0.112 R)
- M25: 11,535,342 km (0.071 R)
- M26: 11,640,958 km (0.038 R)
- M27: 11,747,023 km (0.098 R)
- M28: 12,497,855 km (0.115 R)
- M29: 13,821,048 km (0.063 R)
- M30: 15,712,264 km (0.103 R)
- M31: 16,182,899 km (0.079 R)
- M32: 16,360,622 km (0.083 R)
- M33: 16,658,172 km (0.086 R)
- M34: 16,837,540 km (0.074 R)
- M35: 17,379,682 km (0.056 R)
- M36: 18,172,850 km (0.099 R)
- M37: 18,790,989 km (0.095 R)
- M38: 18,977,836 km (0.099 R)
- M39: 19,102,751 km (0.032 R)
- M40: 20,366,553 km (0.116 R)
- M41: 21,073,104 km (0.116 R)
- M42: 21,853,107 km (0.091 R)
- M43: 22,312,522 km (0.092 R)
- M44: 22,444,318 km (0.071 R)
- M45: 22,576,413 km (0.105 R)
- M46: 23,040,765 km (0.082 R)
- M47: 23,307,647 km (0.115 R)
- M48: 24,114,130 km (0.098 R)
- M49: 24,724,938 km (0.118 R)
- M50: 25,340,982 km (0.053 R)
- M51: 25,892,848 km (0.082 R)
- M52: 27,360,104 km (0.05 R)
- M53: 28,424,643 km (0.069 R)
- M54: 28,710,823 km (0.075 R)
- M55: 28,997,902 km (0.083 R)
- M56: 29,430,389 km (0.099 R)
- M57: 29,575,050 km (0.108 R)
- M58: 29,719,861 km (0.072 R)
- M59: 30,520,958 km (0.102 R)
- M60: 31,846,993 km (0.075 R)
- M61: 32,069,744 km (0.09 R)
- M62: 33,191,728 km (0.089 R)
- M63: 33,266,976 km (0.093 R)
- M64: 33,644,112 km (0.072 R)
- M65: 35,551,036 km (0.107 R)
- M66: 35,705,122 km (0.068 R)
- M67: 35,859,358 km (0.107 R)
- M68: 36,091,234 km (0.118 R)
- M69: 36,711,916 km (0.109 R)
- M70: 36,789,707 km (0.092 R)
- M71: 37,492,817 km (0.12 R)
- M72: 38,436,929 km (0.11 R)
- M73: 38,912,052 km (0.114 R)
- M74: 38,991,488 km (0.12 R)
- M75: 39,070,775 km (0.048 R)
- M76: 41,154,673 km (0.058 R)
- M77: 41,559,485 km (0.073 R)
- M78: 42,618,339 km (0.116 R)
- M79: 44,430,418 km (0.094 R)
- M80: 44,513,295 km (0.049 R)
- M81: 45,429,283 km (0.103 R)
- M82: 46,604,075 km (0.112 R)
- M83: 47,703,919 km (0.051 R)
- M84: 48,726,869 km (0.073 R)
- M85: 49,069,298 km (0.097 R)
- M86: 49,843,019 km (0.058 R)
- M87: 50,967,695 km (0.118 R)
- M88: 52,801,915 km (0.12 R)
- M89: 53,948,283 km (0.096 R)
- M90: 54,746,837 km (0.098 R)
- M91: 55,013,869 km (0.1 R)
- M92: 57,075,328 km (0.116 R)
- M93: 57,707,678 km (0.073 R)
- M94: 58,160,810 km (0.106 R)
- M95: 59,344,578 km (0.095 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: 546 - 20,271 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.