Star System Generated (Seed: 1768422372)
Star Details
Spectral Class: M5V
Temperature: 3,050 K
Mass: 0.3 sol
Luminosity: 0.01 lux
Habitable Zone (HZ)
Inner Boundary: 0.1 AU
Outer Boundary: 0.14 AU
Physical Limits
Snow Line: 0.48 AU
Max System Radius: 11 AU
Planetary System (8 Planets)
Planet 1 - Gas Giant
Semi-Major Axis: 0.64 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 784.2
Radius: 14.7
Gravity: 3.63 G
Time & Orbit
Eccentricity (e): 0.216
Orbit Range: 0.5 AU - 0.78 AU
Year: 341 Days
Day: 9.8 Hours
Environment
Temp: -162 °C
Axial Tilt: 134.4 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (33)
Outer Limit: 40,254,598 km
- M1: 187,147 km (0.034 R)
- M2: 293,810 km (0.07 R)
- M3: 402,568 km (0.046 R)
- M4: 581,637 km (0.092 R)
- M5: 680,072 km (0.106 R)
- M6: 774,319 km (0.034 R)
- M7: 937,679 km (0.099 R)
- M8: 1,040,902 km (0.073 R)
- M9: 1,260,362 km (0.089 R)
- M10: 1,520,214 km (0.08 R)
- M11: 1,634,357 km (0.069 R)
- M12: 1,777,372 km (0.079 R)
- M13: 1,892,862 km (0.036 R)
- M14: 2,120,699 km (0.036 R)
- M15: 2,375,165 km (0.09 R)
- M16: 2,515,039 km (0.1 R)
- M17: 2,645,788 km (0.093 R)
- M18: 2,902,049 km (0.034 R)
- M19: 3,128,241 km (0.039 R)
- M20: 3,275,745 km (0.108 R)
- M21: 3,399,612 km (0.058 R)
- M22: 3,645,102 km (0.111 R)
- M23: 3,780,338 km (0.103 R)
- M24: 3,903,607 km (0.118 R)
- M25: 4,090,903 km (0.114 R)
- M26: 4,259,949 km (0.078 R)
- M27: 4,388,454 km (0.118 R)
- M28: 4,518,005 km (0.115 R)
- M29: 4,649,053 km (0.106 R)
- M30: 4,766,637 km (0.064 R)
- M31: 4,885,118 km (0.113 R)
- M32: 4,989,687 km (0.087 R)
- M33: 5,155,591 km (0.082 R)
Planet 2 - Gas Giant
Semi-Major Axis: 0.69 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 793.1
Radius: 13.5
Gravity: 4.35 G
Time & Orbit
Eccentricity (e): 0.178
Orbit Range: 0.57 AU - 0.81 AU
Year: 382 Days
Day: 13.8 Hours
Environment
Temp: -163 °C
Axial Tilt: 43.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (42)
Outer Limit: 40,254,598 km
- M1: 174,282 km (0.11 R)
- M2: 270,623 km (0.079 R)
- M3: 384,018 km (0.106 R)
- M4: 559,795 km (0.113 R)
- M5: 645,216 km (0.098 R)
- M6: 732,132 km (0.081 R)
- M7: 823,686 km (0.057 R)
- M8: 941,270 km (0.119 R)
- M9: 1,078,750 km (0.116 R)
- M10: 1,296,116 km (0.051 R)
- M11: 1,476,681 km (0.094 R)
- M12: 1,628,373 km (0.106 R)
- M13: 1,763,759 km (0.082 R)
- M14: 1,863,541 km (0.09 R)
- M15: 1,965,417 km (0.06 R)
- M16: 2,063,403 km (0.07 R)
- M17: 2,157,201 km (0.077 R)
- M18: 2,258,479 km (0.119 R)
- M19: 2,343,151 km (0.098 R)
- M20: 2,522,071 km (0.117 R)
- M21: 2,635,466 km (0.086 R)
- M22: 2,744,074 km (0.101 R)
- M23: 2,841,312 km (0.03 R)
- M24: 3,006,020 km (0.114 R)
- M25: 3,173,868 km (0.052 R)
- M26: 3,269,312 km (0.119 R)
- M27: 3,407,391 km (0.115 R)
- M28: 3,632,386 km (0.039 R)
- M29: 3,725,137 km (0.104 R)
- M30: 3,898,670 km (0.109 R)
- M31: 4,008,475 km (0.09 R)
- M32: 4,134,287 km (0.112 R)
- M33: 4,268,925 km (0.058 R)
- M34: 4,488,834 km (0.103 R)
- M35: 4,853,404 km (0.079 R)
- M36: 4,963,957 km (0.077 R)
- M37: 5,083,336 km (0.026 R)
- M38: 5,171,449 km (0.078 R)
- M39: 5,324,936 km (0.119 R)
- M40: 5,479,920 km (0.093 R)
- M41: 5,578,505 km (0.036 R)
- M42: 5,669,460 km (0.089 R)
Planet 3 - Gas Giant
Semi-Major Axis: 0.7 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 108.1
Radius: 13
Gravity: 0.64 G
Time & Orbit
Eccentricity (e): 0.15
Orbit Range: 0.6 AU - 0.81 AU
Year: 391 Days
Day: 5.8 Hours
Environment
Temp: -161 °C
Axial Tilt: 27.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (18)
Outer Limit: 40,254,598 km
- M1: 170,242 km (0.034 R)
- M2: 287,826 km (0.037 R)
- M3: 395,238 km (0.054 R)
- M4: 539,899 km (0.08 R)
- M5: 760,705 km (0.119 R)
- M6: 934,687 km (0.113 R)
- M7: 1,076,207 km (0.087 R)
- M8: 1,161,627 km (0.078 R)
- M9: 1,315,115 km (0.077 R)
- M10: 1,656,647 km (0.089 R)
- M11: 1,916,947 km (0.073 R)
- M12: 2,055,924 km (0.07 R)
- M13: 2,228,859 km (0.039 R)
- M14: 2,340,459 km (0.094 R)
- M15: 2,561,415 km (0.075 R)
- M16: 2,686,778 km (0.045 R)
- M17: 2,805,858 km (0.102 R)
- M18: 2,893,372 km (0.115 R)
Planet 4 - Gas Giant
Semi-Major Axis: 1.55 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 576.8
Radius: 14.4
Gravity: 2.78 G
Time & Orbit
Eccentricity (e): 0.081
Orbit Range: 1.42 AU - 1.68 AU
Year: 1287 Days
Day: 9.3 Hours
Environment
Temp: -190 °C
Axial Tilt: 19.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (57)
Outer Limit: 40,254,598 km
- M1: 180,116 km (0.083 R)
- M2: 273,315 km (0.092 R)
- M3: 371,601 km (0.109 R)
- M4: 543,639 km (0.096 R)
- M5: 742,454 km (0.088 R)
- M6: 885,619 km (0.085 R)
- M7: 1,090,120 km (0.094 R)
- M8: 1,233,285 km (0.118 R)
- M9: 1,407,417 km (0.113 R)
- M10: 1,539,661 km (0.1 R)
- M11: 1,746,106 km (0.076 R)
- M12: 1,870,871 km (0.08 R)
- M13: 2,215,844 km (0.049 R)
- M14: 2,322,507 km (0.09 R)
- M15: 2,430,816 km (0.096 R)
- M16: 2,540,920 km (0.118 R)
- M17: 2,642,646 km (0.104 R)
- M18: 2,745,719 km (0.107 R)
- M19: 2,839,667 km (0.056 R)
- M20: 3,117,320 km (0.103 R)
- M21: 3,415,319 km (0.117 R)
- M22: 3,562,075 km (0.113 R)
- M23: 3,768,969 km (0.118 R)
- M24: 4,039,143 km (0.083 R)
- M25: 4,158,671 km (0.082 R)
- M26: 4,849,813 km (0.098 R)
- M27: 4,989,987 km (0.084 R)
- M28: 5,079,745 km (0.049 R)
- M29: 5,208,998 km (0.106 R)
- M30: 5,484,258 km (0.092 R)
- M31: 5,616,951 km (0.064 R)
- M32: 5,723,914 km (0.088 R)
- M33: 5,994,387 km (0.118 R)
- M34: 6,117,506 km (0.094 R)
- M35: 6,491,949 km (0.066 R)
- M36: 6,802,514 km (0.107 R)
- M37: 6,988,465 km (0.045 R)
- M38: 7,306,958 km (0.049 R)
- M39: 7,409,283 km (0.105 R)
- M40: 7,823,520 km (0.069 R)
- M41: 7,928,238 km (0.115 R)
- M42: 8,199,758 km (0.103 R)
- M43: 8,382,567 km (0.057 R)
- M44: 8,752,074 km (0.098 R)
- M45: 8,907,656 km (0.06 R)
- M46: 9,048,577 km (0.099 R)
- M47: 9,475,529 km (0.047 R)
- M48: 9,603,286 km (0.119 R)
- M49: 9,699,477 km (0.08 R)
- M50: 9,795,968 km (0.092 R)
- M51: 9,909,064 km (0.098 R)
- M52: 10,234,439 km (0.11 R)
- M53: 10,513,888 km (0.109 R)
- M54: 10,745,765 km (0.119 R)
- M55: 11,130,680 km (0.116 R)
- M56: 11,333,235 km (0.109 R)
- M57: 11,434,962 km (0.043 R)
Planet 5 - Gas Giant
Semi-Major Axis: 1.73 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 527.2
Radius: 8.4
Gravity: 7.47 G
Time & Orbit
Eccentricity (e): 0.031
Orbit Range: 1.68 AU - 1.78 AU
Year: 1517 Days
Day: 6.4 Hours
Environment
Temp: -195 °C
Axial Tilt: 14.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (61)
Outer Limit: 40,254,598 km
- M1: 127,158 km (0.11 R)
- M2: 196,272 km (0.055 R)
- M3: 277,504 km (0.11 R)
- M4: 338,839 km (0.091 R)
- M5: 428,000 km (0.041 R)
- M6: 484,697 km (0.078 R)
- M7: 606,769 km (0.076 R)
- M8: 705,504 km (0.026 R)
- M9: 950,246 km (0.112 R)
- M10: 1,082,490 km (0.12 R)
- M11: 1,179,729 km (0.041 R)
- M12: 1,314,068 km (0.082 R)
- M13: 1,471,445 km (0.094 R)
- M14: 1,534,276 km (0.089 R)
- M15: 1,653,505 km (0.114 R)
- M16: 1,843,046 km (0.094 R)
- M17: 1,920,837 km (0.081 R)
- M18: 2,079,859 km (0.109 R)
- M19: 2,161,091 km (0.115 R)
- M20: 2,233,047 km (0.115 R)
- M21: 2,485,718 km (0.082 R)
- M22: 2,803,464 km (0.102 R)
- M23: 3,610,844 km (0.072 R)
- M24: 3,882,813 km (0.045 R)
- M25: 4,059,189 km (0.108 R)
- M26: 4,148,499 km (0.116 R)
- M27: 4,212,676 km (0.084 R)
- M28: 4,341,929 km (0.081 R)
- M29: 4,538,500 km (0.094 R)
- M30: 4,791,470 km (0.099 R)
- M31: 4,899,480 km (0.086 R)
- M32: 5,021,851 km (0.117 R)
- M33: 5,104,130 km (0.081 R)
- M34: 5,311,472 km (0.106 R)
- M35: 5,465,409 km (0.118 R)
- M36: 5,649,264 km (0.109 R)
- M37: 5,806,342 km (0.09 R)
- M38: 5,921,533 km (0.113 R)
- M39: 6,315,873 km (0.083 R)
- M40: 6,479,084 km (0.069 R)
- M41: 6,718,889 km (0.079 R)
- M42: 7,145,542 km (0.093 R)
- M43: 7,222,585 km (0.079 R)
- M44: 7,362,160 km (0.108 R)
- M45: 7,659,561 km (0.096 R)
- M46: 7,849,550 km (0.031 R)
- M47: 8,201,853 km (0.058 R)
- M48: 8,331,105 km (0.051 R)
- M49: 8,396,180 km (0.027 R)
- M50: 8,739,807 km (0.117 R)
- M51: 9,272,525 km (0.096 R)
- M52: 9,644,874 km (0.117 R)
- M53: 10,143,184 km (0.118 R)
- M54: 10,282,161 km (0.102 R)
- M55: 10,808,745 km (0.047 R)
- M56: 11,146,837 km (0.098 R)
- M57: 11,218,494 km (0.068 R)
- M58: 11,797,138 km (0.074 R)
- M59: 12,016,599 km (0.082 R)
- M60: 12,422,458 km (0.084 R)
- M61: 12,496,658 km (0.099 R)
Planet 6 - Gas Giant
Semi-Major Axis: 2.23 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 319.7
Radius: 14.3
Gravity: 1.56 G
Time & Orbit
Eccentricity (e): 0.013
Orbit Range: 2.2 AU - 2.26 AU
Year: 2221 Days
Day: 5.8 Hours
Environment
Temp: -211 °C
Axial Tilt: 3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (54)
Outer Limit: 40,254,598 km
- M1: 200,162 km (0.086 R)
- M2: 356,193 km (0.113 R)
- M3: 648,806 km (0.077 R)
- M4: 758,312 km (0.056 R)
- M5: 913,145 km (0.05 R)
- M6: 1,171,501 km (0.119 R)
- M7: 1,301,053 km (0.064 R)
- M8: 1,623,586 km (0.083 R)
- M9: 1,779,766 km (0.107 R)
- M10: 1,880,146 km (0.025 R)
- M11: 2,044,853 km (0.061 R)
- M12: 2,334,026 km (0.095 R)
- M13: 2,545,557 km (0.101 R)
- M14: 2,740,483 km (0.034 R)
- M15: 2,857,469 km (0.094 R)
- M16: 2,976,250 km (0.092 R)
- M17: 3,231,015 km (0.118 R)
- M18: 3,582,121 km (0.1 R)
- M19: 3,840,626 km (0.1 R)
- M20: 4,078,636 km (0.111 R)
- M21: 4,199,511 km (0.105 R)
- M22: 4,403,563 km (0.029 R)
- M23: 4,751,228 km (0.1 R)
- M24: 5,021,402 km (0.088 R)
- M25: 5,325,983 km (0.068 R)
- M26: 5,443,717 km (0.08 R)
- M27: 5,547,388 km (0.105 R)
- M28: 5,832,223 km (0.09 R)
- M29: 5,953,546 km (0.042 R)
- M30: 6,431,960 km (0.114 R)
- M31: 6,747,313 km (0.089 R)
- M32: 6,954,955 km (0.083 R)
- M33: 7,458,800 km (0.092 R)
- M34: 7,773,554 km (0.05 R)
- M35: 7,907,444 km (0.104 R)
- M36: 8,484,892 km (0.07 R)
- M37: 8,848,415 km (0.08 R)
- M38: 9,146,414 km (0.05 R)
- M39: 9,358,843 km (0.103 R)
- M40: 9,734,633 km (0.092 R)
- M41: 9,987,752 km (0.086 R)
- M42: 10,206,614 km (0.108 R)
- M43: 10,371,770 km (0.118 R)
- M44: 10,463,922 km (0.064 R)
- M45: 10,704,775 km (0.059 R)
- M46: 11,343,408 km (0.087 R)
- M47: 11,667,437 km (0.117 R)
- M48: 11,782,478 km (0.05 R)
- M49: 11,994,458 km (0.115 R)
- M50: 12,285,576 km (0.117 R)
- M51: 12,422,308 km (0.069 R)
- M52: 12,716,866 km (0.092 R)
- M53: 12,855,095 km (0.102 R)
- M54: 13,113,151 km (0.105 R)
Planet 7 - Gas Giant
Semi-Major Axis: 3.88 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 26.6
Radius: 11.5
Gravity: 0.2 G
Time & Orbit
Eccentricity (e): 0.232
Orbit Range: 2.98 AU - 4.78 AU
Year: 5097 Days
Day: 9 Hours
Environment
Temp: -213 °C
Axial Tilt: 32.7 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (48)
Outer Limit: 40,254,598 km
- M1: 145,559 km (0.031 R)
- M2: 230,979 km (0.082 R)
- M3: 409,599 km (0.106 R)
- M4: 562,338 km (0.082 R)
- M5: 707,000 km (0.103 R)
- M6: 982,260 km (0.118 R)
- M7: 1,161,179 km (0.054 R)
- M8: 1,465,910 km (0.059 R)
- M9: 1,624,034 km (0.109 R)
- M10: 1,729,800 km (0.069 R)
- M11: 1,829,732 km (0.084 R)
- M12: 2,123,392 km (0.111 R)
- M13: 2,257,881 km (0.087 R)
- M14: 2,358,410 km (0.051 R)
- M15: 2,432,312 km (0.039 R)
- M16: 2,775,489 km (0.053 R)
- M17: 2,853,879 km (0.096 R)
- M18: 2,933,016 km (0.113 R)
- M19: 3,053,143 km (0.088 R)
- M20: 3,226,228 km (0.066 R)
- M21: 3,350,244 km (0.103 R)
- M22: 3,423,547 km (0.11 R)
- M23: 3,710,775 km (0.113 R)
- M24: 3,808,313 km (0.103 R)
- M25: 4,480,606 km (0.081 R)
- M26: 4,807,028 km (0.07 R)
- M27: 5,032,921 km (0.063 R)
- M28: 5,372,359 km (0.063 R)
- M29: 5,532,428 km (0.079 R)
- M30: 5,769,391 km (0.094 R)
- M31: 5,946,216 km (0.084 R)
- M32: 6,060,659 km (0.042 R)
- M33: 6,137,552 km (0.108 R)
- M34: 6,644,689 km (0.075 R)
- M35: 6,803,412 km (0.079 R)
- M36: 7,057,429 km (0.114 R)
- M37: 7,246,670 km (0.104 R)
- M38: 7,341,815 km (0.108 R)
- M39: 7,866,155 km (0.099 R)
- M40: 8,288,620 km (0.072 R)
- M41: 8,704,053 km (0.042 R)
- M42: 8,936,229 km (0.062 R)
- M43: 9,141,028 km (0.054 R)
- M44: 9,214,630 km (0.077 R)
- M45: 9,288,382 km (0.118 R)
- M46: 9,555,414 km (0.115 R)
- M47: 10,188,513 km (0.095 R)
- M48: 10,264,807 km (0.088 R)
Planet 8 - Ice Giant
Semi-Major Axis: 8.05 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 174.9
Radius: 5
Gravity: 7 G
Time & Orbit
Eccentricity (e): 0.233
Orbit Range: 6.17 AU - 9.93 AU
Year: 15231 Days
Day: 25 Hours
Environment
Temp: -226 °C
Axial Tilt: 171.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (91)
Outer Limit: 40,254,598 km
- M1: 85,720 km (0.093 R)
- M2: 211,681 km (0.088 R)
- M3: 458,667 km (0.095 R)
- M4: 594,801 km (0.035 R)
- M5: 1,075,908 km (0.08 R)
- M6: 1,202,019 km (0.064 R)
- M7: 1,239,119 km (0.119 R)
- M8: 1,488,648 km (0.103 R)
- M9: 1,967,810 km (0.093 R)
- M10: 2,011,643 km (0.074 R)
- M11: 2,055,774 km (0.052 R)
- M12: 2,212,852 km (0.067 R)
- M13: 2,420,494 km (0.074 R)
- M14: 3,106,101 km (0.075 R)
- M15: 3,260,336 km (0.065 R)
- M16: 3,390,935 km (0.115 R)
- M17: 3,549,808 km (0.108 R)
- M18: 3,765,528 km (0.097 R)
- M19: 3,930,086 km (0.083 R)
- M20: 4,153,136 km (0.095 R)
- M21: 4,209,534 km (0.117 R)
- M22: 4,966,201 km (0.05 R)
- M23: 5,359,942 km (0.086 R)
- M24: 5,483,211 km (0.028 R)
- M25: 5,669,759 km (0.045 R)
- M26: 6,049,139 km (0.085 R)
- M27: 6,241,822 km (0.067 R)
- M28: 6,339,060 km (0.079 R)
- M29: 6,932,365 km (0.106 R)
- M30: 7,303,667 km (0.08 R)
- M31: 7,646,845 km (0.1 R)
- M32: 7,785,672 km (0.057 R)
- M33: 8,065,569 km (0.077 R)
- M34: 8,206,790 km (0.092 R)
- M35: 9,144,619 km (0.112 R)
- M36: 9,776,071 km (0.107 R)
- M37: 10,153,955 km (0.063 R)
- M38: 10,192,103 km (0.058 R)
- M39: 10,729,907 km (0.11 R)
- M40: 10,807,399 km (0.101 R)
- M41: 11,080,415 km (0.104 R)
- M42: 11,119,610 km (0.045 R)
- M43: 11,633,329 km (0.118 R)
- M44: 11,832,892 km (0.114 R)
- M45: 12,806,775 km (0.053 R)
- M46: 12,889,053 km (0.084 R)
- M47: 13,219,964 km (0.101 R)
- M48: 13,511,979 km (0.115 R)
- M49: 13,890,461 km (0.102 R)
- M50: 14,144,628 km (0.071 R)
- M51: 15,133,470 km (0.118 R)
- M52: 15,394,967 km (0.08 R)
- M53: 15,966,880 km (0.112 R)
- M54: 16,501,094 km (0.079 R)
- M55: 17,313,111 km (0.064 R)
- M56: 17,586,726 km (0.078 R)
- M57: 17,907,613 km (0.108 R)
- M58: 18,184,369 km (0.106 R)
- M59: 18,835,419 km (0.106 R)
- M60: 20,352,042 km (0.053 R)
- M61: 21,124,865 km (0.049 R)
- M62: 21,417,179 km (0.067 R)
- M63: 21,808,976 km (0.115 R)
- M64: 23,399,949 km (0.104 R)
- M65: 23,752,851 km (0.027 R)
- M66: 23,955,257 km (0.069 R)
- M67: 24,056,834 km (0.096 R)
- M68: 25,130,647 km (0.118 R)
- M69: 25,751,329 km (0.101 R)
- M70: 26,011,479 km (0.101 R)
- M71: 28,284,021 km (0.089 R)
- M72: 29,091,550 km (0.115 R)
- M73: 30,344,582 km (0.074 R)
- M74: 30,674,295 km (0.103 R)
- M75: 31,281,962 km (0.106 R)
- M76: 31,337,313 km (0.043 R)
- M77: 31,614,967 km (0.117 R)
- M78: 32,509,113 km (0.049 R)
- M79: 33,015,652 km (0.097 R)
- M80: 34,036,508 km (0.082 R)
- M81: 34,379,087 km (0.032 R)
- M82: 34,550,825 km (0.08 R)
- M83: 35,760,922 km (0.067 R)
- M84: 35,876,861 km (0.1 R)
- M85: 35,934,905 km (0.098 R)
- M86: 36,283,767 km (0.115 R)
- M87: 37,572,403 km (0.074 R)
- M88: 37,749,227 km (0.119 R)
- M89: 37,926,351 km (0.065 R)
- M90: 38,935,539 km (0.088 R)
- M91: 39,533,332 km (0.103 R)
Kuiper Belt
Range: 30 - 51 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 308 - 14,781 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.