G0V Star System Generated (Seed: 1766913583)
Star Details
Spectral Class: G7V
Temperature: 5,400 K
Mass: 0.95 sol
Luminosity: 0.84 lux
Habitable Zone (HZ)
Inner Boundary: 0.87 AU
Outer Boundary: 1.26 AU
Physical Limits
Snow Line: 4.4 AU
Max System Radius: 19.5 AU
Planetary System (7 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 0.5 AU
Status: Inner (Hot)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 4.11
Radius: 1.76
Gravity: 1.33 G
Time & Orbit
Eccentricity (e): 0.25
Orbit Range: 0.38 AU - 0.63 AU
Year: 132 Days
Day: 44.2 Hours
Environment
Temp: 155 °C
Axial Tilt: 16.3 °
Atmosphere: Dense COâ‚‚
Biome: Volcanic/Barren
Planet 2 - Terrestrial
Semi-Major Axis: 0.62 AU
Status: Inner (Hot)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 3.2
Radius: 1.59
Gravity: 1.27 G
Time & Orbit
Eccentricity (e): 0.006
Orbit Range: 0.62 AU - 0.62 AU
Year: 183 Days
Day: 39.1 Hours
Environment
Temp: 126 °C
Axial Tilt: 37.9 °
Atmosphere: Dense COâ‚‚
Biome: Volcanic/Barren
Satellites (1)
Outer Limit: 60,176,958 km
- M1: 39,195 km (0.063 R)
Planet 3 - Gas Giant
Semi-Major Axis: 7.25 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 653.6
Radius: 10
Gravity: 6.54 G
Time & Orbit
Eccentricity (e): 0.044
Orbit Range: 6.93 AU - 7.57 AU
Year: 7315 Days
Day: 8.2 Hours
Environment
Temp: -154 °C
Axial Tilt: 31.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (79)
Outer Limit: 60,176,958 km
- M1: 151,692 km (0.079 R)
- M2: 257,608 km (0.092 R)
- M3: 418,425 km (0.063 R)
- M4: 590,313 km (0.117 R)
- M5: 671,694 km (0.077 R)
- M6: 771,925 km (0.091 R)
- M7: 956,230 km (0.082 R)
- M8: 1,021,005 km (0.08 R)
- M9: 1,313,918 km (0.099 R)
- M10: 1,498,522 km (0.074 R)
- M11: 1,652,608 km (0.077 R)
- M12: 1,791,734 km (0.094 R)
- M13: 2,081,954 km (0.101 R)
- M14: 2,545,408 km (0.093 R)
- M15: 2,614,372 km (0.085 R)
- M16: 2,896,065 km (0.11 R)
- M17: 3,089,346 km (0.119 R)
- M18: 3,539,934 km (0.116 R)
- M19: 3,642,858 km (0.111 R)
- M20: 4,281,790 km (0.089 R)
- M21: 4,869,111 km (0.097 R)
- M22: 5,012,725 km (0.071 R)
- M23: 5,571,473 km (0.1 R)
- M24: 6,057,218 km (0.096 R)
- M25: 6,715,448 km (0.114 R)
- M26: 7,069,397 km (0.105 R)
- M27: 7,862,714 km (0.064 R)
- M28: 8,269,920 km (0.058 R)
- M29: 8,338,436 km (0.068 R)
- M30: 8,545,330 km (0.111 R)
- M31: 8,649,300 km (0.075 R)
- M32: 9,140,430 km (0.098 R)
- M33: 9,712,642 km (0.119 R)
- M34: 10,223,070 km (0.105 R)
- M35: 10,333,473 km (0.114 R)
- M36: 10,555,775 km (0.11 R)
- M37: 11,193,960 km (0.081 R)
- M38: 12,038,290 km (0.04 R)
- M39: 13,222,657 km (0.097 R)
- M40: 13,302,841 km (0.075 R)
- M41: 13,383,325 km (0.099 R)
- M42: 14,032,729 km (0.076 R)
- M43: 14,817,071 km (0.053 R)
- M44: 14,984,022 km (0.075 R)
- M45: 15,870,838 km (0.115 R)
- M46: 16,213,118 km (0.073 R)
- M47: 16,557,941 km (0.104 R)
- M48: 16,644,409 km (0.047 R)
- M49: 17,562,491 km (0.091 R)
- M50: 18,541,908 km (0.073 R)
- M51: 18,812,082 km (0.086 R)
- M52: 19,676,309 km (0.106 R)
- M53: 20,367,600 km (0.115 R)
- M54: 20,739,650 km (0.12 R)
- M55: 21,207,742 km (0.096 R)
- M56: 22,011,681 km (0.103 R)
- M57: 22,537,218 km (0.114 R)
- M58: 22,633,111 km (0.084 R)
- M59: 23,018,475 km (0.063 R)
- M60: 23,844,405 km (0.04 R)
- M61: 26,380,089 km (0.108 R)
- M62: 26,481,366 km (0.111 R)
- M63: 27,295,478 km (0.05 R)
- M64: 27,859,911 km (0.086 R)
- M65: 28,896,026 km (0.104 R)
- M66: 29,104,715 km (0.102 R)
- M67: 29,997,515 km (0.117 R)
- M68: 30,261,704 km (0.108 R)
- M69: 30,739,370 km (0.111 R)
- M70: 31,219,580 km (0.063 R)
- M71: 32,187,328 km (0.093 R)
- M72: 32,620,564 km (0.058 R)
- M73: 33,001,290 km (0.099 R)
- M74: 33,932,088 km (0.051 R)
- M75: 34,483,506 km (0.103 R)
- M76: 35,763,166 km (0.085 R)
- M77: 36,043,513 km (0.049 R)
- M78: 36,549,752 km (0.096 R)
- M79: 37,854,395 km (0.112 R)
Planet 4 - Gas Giant
Semi-Major Axis: 7.49 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 599.2
Radius: 9.1
Gravity: 7.24 G
Time & Orbit
Eccentricity (e): 0.023
Orbit Range: 7.32 AU - 7.66 AU
Year: 7682 Days
Day: 5.3 Hours
Environment
Temp: -169 °C
Axial Tilt: 36.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (79)
Outer Limit: 60,176,958 km
- M1: 126,709 km (0.066 R)
- M2: 283,189 km (0.07 R)
- M3: 443,109 km (0.119 R)
- M4: 567,724 km (0.081 R)
- M5: 733,927 km (0.096 R)
- M6: 1,013,376 km (0.11 R)
- M7: 1,113,906 km (0.034 R)
- M8: 1,511,836 km (0.089 R)
- M9: 1,807,441 km (0.036 R)
- M10: 1,993,691 km (0.034 R)
- M11: 2,121,298 km (0.04 R)
- M12: 2,186,223 km (0.051 R)
- M13: 2,273,888 km (0.025 R)
- M14: 3,065,260 km (0.11 R)
- M15: 3,855,287 km (0.09 R)
- M16: 3,988,429 km (0.069 R)
- M17: 4,231,974 km (0.075 R)
- M18: 4,564,381 km (0.102 R)
- M19: 4,677,028 km (0.087 R)
- M20: 4,934,037 km (0.112 R)
- M21: 5,020,654 km (0.079 R)
- M22: 5,342,888 km (0.088 R)
- M23: 5,641,784 km (0.072 R)
- M24: 5,702,222 km (0.071 R)
- M25: 5,793,178 km (0.082 R)
- M26: 5,946,067 km (0.097 R)
- M27: 6,318,266 km (0.08 R)
- M28: 6,890,777 km (0.066 R)
- M29: 7,579,825 km (0.06 R)
- M30: 7,747,075 km (0.117 R)
- M31: 8,359,379 km (0.108 R)
- M32: 8,532,315 km (0.065 R)
- M33: 9,058,001 km (0.102 R)
- M34: 9,235,574 km (0.096 R)
- M35: 9,594,310 km (0.102 R)
- M36: 9,702,768 km (0.04 R)
- M37: 9,775,323 km (0.083 R)
- M38: 10,140,791 km (0.032 R)
- M39: 10,510,896 km (0.113 R)
- M40: 11,225,974 km (0.045 R)
- M41: 13,383,624 km (0.037 R)
- M42: 13,545,489 km (0.095 R)
- M43: 13,707,952 km (0.066 R)
- M44: 14,240,521 km (0.103 R)
- M45: 14,905,184 km (0.096 R)
- M46: 15,495,198 km (0.082 R)
- M47: 17,841,491 km (0.082 R)
- M48: 18,064,242 km (0.066 R)
- M49: 18,467,558 km (0.104 R)
- M50: 18,919,344 km (0.066 R)
- M51: 19,100,955 km (0.093 R)
- M52: 19,512,050 km (0.041 R)
- M53: 19,649,680 km (0.113 R)
- M54: 21,562,738 km (0.079 R)
- M55: 21,705,005 km (0.066 R)
- M56: 22,661,833 km (0.085 R)
- M57: 23,291,042 km (0.038 R)
- M58: 23,779,030 km (0.109 R)
- M59: 24,467,779 km (0.087 R)
- M60: 25,865,023 km (0.094 R)
- M61: 26,420,929 km (0.109 R)
- M62: 27,185,374 km (0.112 R)
- M63: 27,905,538 km (0.091 R)
- M64: 28,060,671 km (0.101 R)
- M65: 28,579,776 km (0.084 R)
- M66: 28,945,094 km (0.06 R)
- M67: 30,901,385 km (0.106 R)
- M68: 31,760,675 km (0.113 R)
- M69: 32,084,854 km (0.117 R)
- M70: 32,301,621 km (0.061 R)
- M71: 32,682,048 km (0.06 R)
- M72: 33,832,456 km (0.119 R)
- M73: 34,108,315 km (0.105 R)
- M74: 34,662,275 km (0.1 R)
- M75: 35,779,173 km (0.106 R)
- M76: 36,003,869 km (0.091 R)
- M77: 36,907,739 km (0.113 R)
- M78: 37,419,364 km (0.107 R)
- M79: 37,990,678 km (0.091 R)
Asteroid Belt
Center: 7.77 AU
Composition
Type: Outer System (Icy)
A dense region of planetesimals and debris.
Boundary
Planet 5 - Gas Giant
Semi-Major Axis: 8.04 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 938.1
Radius: 8.8
Gravity: 12.11 G
Time & Orbit
Eccentricity (e): 0.195
Orbit Range: 6.47 AU - 9.61 AU
Year: 8543 Days
Day: 13.4 Hours
Environment
Temp: -160 °C
Axial Tilt: 12.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (89)
Outer Limit: 60,176,958 km
- M1: 197,320 km (0.109 R)
- M2: 409,150 km (0.064 R)
- M3: 692,788 km (0.066 R)
- M4: 760,107 km (0.057 R)
- M5: 847,622 km (0.098 R)
- M6: 976,126 km (0.076 R)
- M7: 1,033,272 km (0.12 R)
- M8: 1,151,006 km (0.106 R)
- M9: 1,422,077 km (0.072 R)
- M10: 1,949,859 km (0.073 R)
- M11: 2,560,667 km (0.109 R)
- M12: 2,668,078 km (0.077 R)
- M13: 2,776,836 km (0.11 R)
- M14: 3,256,147 km (0.058 R)
- M15: 3,372,684 km (0.069 R)
- M16: 3,490,567 km (0.067 R)
- M17: 3,670,085 km (0.11 R)
- M18: 4,258,453 km (0.111 R)
- M19: 4,354,196 km (0.115 R)
- M20: 4,678,075 km (0.104 R)
- M21: 4,776,810 km (0.093 R)
- M22: 4,843,081 km (0.074 R)
- M23: 4,976,373 km (0.103 R)
- M24: 5,556,663 km (0.079 R)
- M25: 6,375,562 km (0.106 R)
- M26: 7,118,166 km (0.084 R)
- M27: 7,422,747 km (0.101 R)
- M28: 7,499,640 km (0.045 R)
- M29: 7,615,429 km (0.096 R)
- M30: 8,684,007 km (0.059 R)
- M31: 9,339,096 km (0.091 R)
- M32: 9,463,711 km (0.111 R)
- M33: 10,437,593 km (0.047 R)
- M34: 10,653,463 km (0.097 R)
- M35: 12,070,005 km (0.043 R)
- M36: 12,433,378 km (0.112 R)
- M37: 12,754,266 km (0.05 R)
- M38: 12,985,245 km (0.078 R)
- M39: 13,310,770 km (0.052 R)
- M40: 13,544,890 km (0.04 R)
- M41: 13,638,987 km (0.096 R)
- M42: 14,065,042 km (0.112 R)
- M43: 14,351,373 km (0.112 R)
- M44: 14,881,547 km (0.105 R)
- M45: 15,027,256 km (0.025 R)
- M46: 15,124,644 km (0.038 R)
- M47: 15,320,019 km (0.092 R)
- M48: 15,762,828 km (0.061 R)
- M49: 16,862,822 km (0.089 R)
- M50: 17,575,655 km (0.087 R)
- M51: 17,781,203 km (0.09 R)
- M52: 18,142,631 km (0.08 R)
- M53: 18,454,543 km (0.118 R)
- M54: 19,506,665 km (0.073 R)
- M55: 20,362,365 km (0.116 R)
- M56: 22,387,621 km (0.076 R)
- M57: 22,777,921 km (0.118 R)
- M58: 24,247,571 km (0.103 R)
- M59: 27,753,846 km (0.111 R)
- M60: 29,261,044 km (0.071 R)
- M61: 29,932,589 km (0.084 R)
- M62: 31,415,254 km (0.088 R)
- M63: 31,852,229 km (0.092 R)
- M64: 33,811,512 km (0.1 R)
- M65: 33,939,269 km (0.092 R)
- M66: 34,131,203 km (0.1 R)
- M67: 34,323,436 km (0.119 R)
- M68: 35,354,914 km (0.095 R)
- M69: 35,744,317 km (0.104 R)
- M70: 36,069,991 km (0.084 R)
- M71: 36,135,216 km (0.113 R)
- M72: 36,658,659 km (0.113 R)
- M73: 37,052,849 km (0.039 R)
- M74: 37,118,672 km (0.089 R)
- M75: 37,250,468 km (0.059 R)
- M76: 37,712,875 km (0.11 R)
- M77: 38,044,384 km (0.085 R)
- M78: 38,443,511 km (0.064 R)
- M79: 38,510,082 km (0.078 R)
- M80: 38,777,114 km (0.058 R)
- M81: 38,977,725 km (0.096 R)
- M82: 39,783,759 km (0.108 R)
- M83: 41,003,131 km (0.087 R)
- M84: 41,754,262 km (0.093 R)
- M85: 43,200,873 km (0.078 R)
- M86: 44,314,031 km (0.102 R)
- M87: 45,295,842 km (0.029 R)
- M88: 45,789,365 km (0.091 R)
- M89: 46,497,711 km (0.105 R)
Planet 6 - Gas Giant
Semi-Major Axis: 10.27 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 578.5
Radius: 14.9
Gravity: 2.61 G
Time & Orbit
Eccentricity (e): 0.215
Orbit Range: 8.06 AU - 12.48 AU
Year: 12333 Days
Day: 12.2 Hours
Environment
Temp: -188 °C
Axial Tilt: 39.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (83)
Outer Limit: 60,176,958 km
- M1: 198,367 km (0.07 R)
- M2: 986,897 km (0.116 R)
- M3: 1,360,144 km (0.048 R)
- M4: 1,802,654 km (0.064 R)
- M5: 1,901,688 km (0.05 R)
- M6: 2,131,470 km (0.078 R)
- M7: 2,425,131 km (0.104 R)
- M8: 2,818,125 km (0.103 R)
- M9: 2,963,534 km (0.07 R)
- M10: 3,292,649 km (0.12 R)
- M11: 3,633,732 km (0.115 R)
- M12: 3,760,591 km (0.097 R)
- M13: 4,084,471 km (0.113 R)
- M14: 4,383,966 km (0.059 R)
- M15: 5,726,756 km (0.102 R)
- M16: 6,636,610 km (0.102 R)
- M17: 6,910,524 km (0.118 R)
- M18: 7,754,854 km (0.096 R)
- M19: 8,462,153 km (0.073 R)
- M20: 9,017,161 km (0.102 R)
- M21: 9,277,312 km (0.077 R)
- M22: 11,213,856 km (0.092 R)
- M23: 11,681,799 km (0.104 R)
- M24: 12,156,173 km (0.089 R)
- M25: 12,251,916 km (0.072 R)
- M26: 12,347,808 km (0.102 R)
- M27: 12,492,021 km (0.104 R)
- M28: 12,831,009 km (0.066 R)
- M29: 13,222,058 km (0.1 R)
- M30: 14,267,448 km (0.091 R)
- M31: 15,184,483 km (0.079 R)
- M32: 15,650,331 km (0.067 R)
- M33: 16,068,158 km (0.099 R)
- M34: 16,331,300 km (0.111 R)
- M35: 16,436,916 km (0.109 R)
- M36: 19,374,570 km (0.038 R)
- M37: 20,049,107 km (0.049 R)
- M38: 20,389,292 km (0.119 R)
- M39: 20,674,276 km (0.07 R)
- M40: 21,132,943 km (0.082 R)
- M41: 21,305,878 km (0.103 R)
- M42: 21,827,377 km (0.048 R)
- M43: 21,943,764 km (0.09 R)
- M44: 23,179,143 km (0.11 R)
- M45: 24,135,372 km (0.082 R)
- M46: 25,594,101 km (0.117 R)
- M47: 26,086,727 km (0.076 R)
- M48: 26,769,043 km (0.081 R)
- M49: 27,961,637 km (0.107 R)
- M50: 28,088,197 km (0.048 R)
- M51: 28,851,445 km (0.112 R)
- M52: 29,364,117 km (0.091 R)
- M53: 29,815,155 km (0.052 R)
- M54: 30,333,362 km (0.118 R)
- M55: 30,593,662 km (0.108 R)
- M56: 30,724,111 km (0.11 R)
- M57: 31,774,139 km (0.053 R)
- M58: 32,303,566 km (0.051 R)
- M59: 32,969,426 km (0.085 R)
- M60: 33,103,166 km (0.12 R)
- M61: 33,304,076 km (0.066 R)
- M62: 34,653,898 km (0.112 R)
- M63: 35,130,517 km (0.066 R)
- M64: 35,267,100 km (0.07 R)
- M65: 35,472,348 km (0.114 R)
- M66: 39,304,746 km (0.06 R)
- M67: 42,245,990 km (0.078 R)
- M68: 43,632,912 km (0.067 R)
- M69: 44,368,933 km (0.035 R)
- M70: 44,664,389 km (0.096 R)
- M71: 46,002,542 km (0.077 R)
- M72: 47,504,654 km (0.032 R)
- M73: 47,882,688 km (0.074 R)
- M74: 48,034,231 km (0.105 R)
- M75: 48,337,615 km (0.112 R)
- M76: 49,022,773 km (0.116 R)
- M77: 49,634,479 km (0.108 R)
- M78: 50,018,198 km (0.067 R)
- M79: 50,788,328 km (0.081 R)
- M80: 50,942,862 km (0.111 R)
- M81: 51,097,546 km (0.106 R)
- M82: 51,407,363 km (0.09 R)
- M83: 52,106,734 km (0.074 R)
Planet 7 - Ice Giant
Semi-Major Axis: 15.54 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 257.2
Radius: 6.9
Gravity: 5.4 G
Time & Orbit
Eccentricity (e): 0.184
Orbit Range: 12.68 AU - 18.4 AU
Year: 22956 Days
Day: 20.5 Hours
Environment
Temp: -188 °C
Axial Tilt: 28.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (81)
Outer Limit: 60,176,958 km
- M1: 91,255 km (0.079 R)
- M2: 137,181 km (0.101 R)
- M3: 352,453 km (0.104 R)
- M4: 479,312 km (0.085 R)
- M5: 903,571 km (0.069 R)
- M6: 946,955 km (0.103 R)
- M7: 1,198,728 km (0.107 R)
- M8: 1,320,052 km (0.059 R)
- M9: 2,014,635 km (0.065 R)
- M10: 2,307,996 km (0.116 R)
- M11: 2,398,802 km (0.111 R)
- M12: 2,459,838 km (0.045 R)
- M13: 2,521,622 km (0.076 R)
- M14: 2,805,409 km (0.053 R)
- M15: 3,033,396 km (0.048 R)
- M16: 3,472,615 km (0.112 R)
- M17: 4,522,643 km (0.112 R)
- M18: 5,260,310 km (0.083 R)
- M19: 5,500,863 km (0.1 R)
- M20: 5,827,435 km (0.115 R)
- M21: 5,993,040 km (0.061 R)
- M22: 6,286,551 km (0.062 R)
- M23: 7,732,864 km (0.081 R)
- M24: 8,144,407 km (0.113 R)
- M25: 8,704,352 km (0.04 R)
- M26: 8,989,037 km (0.081 R)
- M27: 9,373,354 km (0.101 R)
- M28: 10,357,409 km (0.038 R)
- M29: 11,580,970 km (0.065 R)
- M30: 11,685,090 km (0.092 R)
- M31: 14,217,632 km (0.056 R)
- M32: 15,516,441 km (0.066 R)
- M33: 16,558,988 km (0.106 R)
- M34: 16,676,273 km (0.095 R)
- M35: 18,044,346 km (0.046 R)
- M36: 18,955,845 km (0.085 R)
- M37: 19,509,956 km (0.079 R)
- M38: 19,695,756 km (0.104 R)
- M39: 20,194,366 km (0.053 R)
- M40: 20,319,729 km (0.092 R)
- M41: 20,634,034 km (0.097 R)
- M42: 22,488,749 km (0.093 R)
- M43: 23,140,547 km (0.089 R)
- M44: 24,129,987 km (0.109 R)
- M45: 24,730,323 km (0.108 R)
- M46: 25,335,447 km (0.056 R)
- M47: 27,179,988 km (0.077 R)
- M48: 28,574,091 km (0.118 R)
- M49: 28,785,173 km (0.111 R)
- M50: 32,013,346 km (0.114 R)
- M51: 34,004,643 km (0.113 R)
- M52: 34,079,143 km (0.101 R)
- M53: 34,452,689 km (0.067 R)
- M54: 34,827,431 km (0.108 R)
- M55: 34,977,628 km (0.071 R)
- M56: 35,656,652 km (0.112 R)
- M57: 35,959,887 km (0.103 R)
- M58: 36,721,490 km (0.109 R)
- M59: 37,104,311 km (0.069 R)
- M60: 37,181,055 km (0.112 R)
- M61: 37,334,542 km (0.118 R)
- M62: 37,873,843 km (0.12 R)
- M63: 38,028,377 km (0.102 R)
- M64: 40,608,641 km (0.105 R)
- M65: 40,687,778 km (0.111 R)
- M66: 41,322,073 km (0.034 R)
- M67: 43,406,421 km (0.11 R)
- M68: 46,100,678 km (0.067 R)
- M69: 46,596,446 km (0.085 R)
- M70: 46,927,805 km (0.035 R)
- M71: 48,345,095 km (0.119 R)
- M72: 48,512,794 km (0.106 R)
- M73: 48,764,717 km (0.115 R)
- M74: 49,776,448 km (0.083 R)
- M75: 52,680,591 km (0.115 R)
- M76: 53,545,117 km (0.117 R)
- M77: 53,718,501 km (0.093 R)
- M78: 54,850,658 km (0.112 R)
- M79: 55,727,002 km (0.066 R)
- M80: 56,431,309 km (0.066 R)
- M81: 58,294,101 km (0.096 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: 272 - 15,693 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.