G8V Star System Generated (Seed: 1766907884)
Star Details
Spectral Class: G3V
Temperature: 5,720 K
Mass: 1.03 sol
Luminosity: 1.11 lux
Habitable Zone (HZ)
Inner Boundary: 1 AU
Outer Boundary: 1.45 AU
Physical Limits
Snow Line: 5.06 AU
Max System Radius: 20.3 AU
Planetary System (8 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 0.52 AU
Status: Inner (Hot)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 4.58
Radius: 1.84
Gravity: 1.35 G
Time & Orbit
Eccentricity (e): 0.022
Orbit Range: 0.51 AU - 0.53 AU
Year: 135 Days
Day: 33.4 Hours
Environment
Temp: 198 °C
Axial Tilt: 34.2 °
Atmosphere: Dense COâ‚‚
Biome: Volcanic/Barren
Satellites (1)
Outer Limit: 61,416,862 km
- M1: 174,282 km (0.091 R)
Planet 2 - Terrestrial
Semi-Major Axis: 1.01 AU
Status: HZ
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 3.57
Radius: 1.66
Gravity: 1.3 G
Time & Orbit
Eccentricity (e): 0.127
Orbit Range: 0.88 AU - 1.14 AU
Year: 365 Days
Day: 46.3 Hours
Environment
Temp: 50 °C
Axial Tilt: 46.6 °
Atmosphere: Nâ‚‚, Oâ‚‚
Biome: Arid/Tundra
Planet 3 - Terrestrial
Semi-Major Axis: 1.51 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 3.91
Radius: 1.73
Gravity: 1.31 G
Time & Orbit
Eccentricity (e): 0.11
Orbit Range: 1.34 AU - 1.68 AU
Year: 668 Days
Day: 22.4 Hours
Environment
Temp: -35 °C
Axial Tilt: 44.7 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Planet 4 - Gas Giant
Semi-Major Axis: 5.39 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 137.8
Radius: 11.3
Gravity: 1.08 G
Time & Orbit
Eccentricity (e): 0.08
Orbit Range: 4.96 AU - 5.82 AU
Year: 4504 Days
Day: 8.3 Hours
Environment
Temp: -148 °C
Axial Tilt: 5.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (71)
Outer Limit: 61,416,862 km
- M1: 141,968 km (0.056 R)
- M2: 252,222 km (0.11 R)
- M3: 334,501 km (0.096 R)
- M4: 456,573 km (0.079 R)
- M5: 582,235 km (0.11 R)
- M6: 689,197 km (0.062 R)
- M7: 762,052 km (0.088 R)
- M8: 863,629 km (0.113 R)
- M9: 1,197,531 km (0.088 R)
- M10: 1,358,797 km (0.063 R)
- M11: 1,452,895 km (0.106 R)
- M12: 1,603,839 km (0.117 R)
- M13: 1,726,210 km (0.068 R)
- M14: 1,910,066 km (0.063 R)
- M15: 1,992,494 km (0.102 R)
- M16: 2,076,269 km (0.118 R)
- M17: 2,148,973 km (0.06 R)
- M18: 2,297,075 km (0.118 R)
- M19: 2,372,473 km (0.084 R)
- M20: 2,499,930 km (0.075 R)
- M21: 2,590,586 km (0.09 R)
- M22: 2,909,978 km (0.115 R)
- M23: 3,116,124 km (0.075 R)
- M24: 3,213,961 km (0.065 R)
- M25: 3,528,266 km (0.115 R)
- M26: 3,988,130 km (0.09 R)
- M27: 4,310,663 km (0.109 R)
- M28: 4,593,851 km (0.076 R)
- M29: 4,948,249 km (0.12 R)
- M30: 5,062,990 km (0.116 R)
- M31: 5,581,497 km (0.091 R)
- M32: 5,855,709 km (0.091 R)
- M33: 5,959,680 km (0.111 R)
- M34: 6,204,871 km (0.114 R)
- M35: 6,542,812 km (0.105 R)
- M36: 7,236,947 km (0.12 R)
- M37: 7,517,443 km (0.101 R)
- M38: 7,668,536 km (0.084 R)
- M39: 7,763,381 km (0.115 R)
- M40: 7,877,824 km (0.089 R)
- M41: 8,773,915 km (0.095 R)
- M42: 8,893,145 km (0.098 R)
- M43: 9,395,943 km (0.094 R)
- M44: 9,477,175 km (0.103 R)
- M45: 9,579,200 km (0.076 R)
- M46: 9,804,794 km (0.059 R)
- M47: 10,136,153 km (0.092 R)
- M48: 10,324,048 km (0.082 R)
- M49: 10,407,973 km (0.082 R)
- M50: 10,513,290 km (0.064 R)
- M51: 10,724,821 km (0.044 R)
- M52: 10,809,793 km (0.075 R)
- M53: 10,916,456 km (0.117 R)
- M54: 11,087,596 km (0.117 R)
- M55: 11,173,615 km (0.071 R)
- M56: 11,672,374 km (0.051 R)
- M57: 12,111,892 km (0.113 R)
- M58: 12,222,595 km (0.068 R)
- M59: 12,400,467 km (0.058 R)
- M60: 12,803,932 km (0.062 R)
- M61: 12,916,729 km (0.063 R)
- M62: 13,120,631 km (0.118 R)
- M63: 13,234,475 km (0.076 R)
- M64: 13,462,911 km (0.081 R)
- M65: 13,923,971 km (0.101 R)
- M66: 14,554,377 km (0.092 R)
- M67: 14,625,137 km (0.086 R)
- M68: 15,170,421 km (0.094 R)
- M69: 15,674,267 km (0.088 R)
- M70: 16,183,498 km (0.038 R)
- M71: 16,378,872 km (0.071 R)
Planet 5 - Gas Giant
Semi-Major Axis: 5.91 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 281.7
Radius: 13
Gravity: 1.67 G
Time & Orbit
Eccentricity (e): 0.173
Orbit Range: 4.89 AU - 6.93 AU
Year: 5171 Days
Day: 9.1 Hours
Environment
Temp: -143 °C
Axial Tilt: 8.1 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (73)
Outer Limit: 61,416,862 km
- M1: 169,794 km (0.061 R)
- M2: 386,561 km (0.054 R)
- M3: 505,192 km (0.077 R)
- M4: 777,311 km (0.085 R)
- M5: 872,006 km (0.107 R)
- M6: 970,890 km (0.076 R)
- M7: 1,157,289 km (0.08 R)
- M8: 1,267,692 km (0.105 R)
- M9: 1,759,869 km (0.03 R)
- M10: 2,125,038 km (0.069 R)
- M11: 2,418,998 km (0.088 R)
- M12: 2,595,224 km (0.087 R)
- M13: 2,742,727 km (0.082 R)
- M14: 2,825,904 km (0.117 R)
- M15: 3,219,496 km (0.116 R)
- M16: 3,342,914 km (0.059 R)
- M17: 3,722,593 km (0.098 R)
- M18: 4,602,678 km (0.085 R)
- M19: 4,722,057 km (0.095 R)
- M20: 5,148,560 km (0.104 R)
- M21: 5,356,053 km (0.077 R)
- M22: 5,460,771 km (0.114 R)
- M23: 5,800,807 km (0.079 R)
- M24: 5,973,443 km (0.107 R)
- M25: 6,191,557 km (0.115 R)
- M26: 6,279,670 km (0.11 R)
- M27: 6,368,082 km (0.049 R)
- M28: 6,568,693 km (0.104 R)
- M29: 7,090,789 km (0.09 R)
- M30: 7,229,168 km (0.107 R)
- M31: 7,626,200 km (0.046 R)
- M32: 7,910,885 km (0.112 R)
- M33: 8,030,563 km (0.061 R)
- M34: 8,393,189 km (0.091 R)
- M35: 8,662,465 km (0.099 R)
- M36: 8,810,567 km (0.074 R)
- M37: 9,159,578 km (0.085 R)
- M38: 9,360,937 km (0.078 R)
- M39: 9,640,386 km (0.115 R)
- M40: 10,103,541 km (0.087 R)
- M41: 10,574,026 km (0.096 R)
- M42: 11,428,081 km (0.102 R)
- M43: 12,166,047 km (0.104 R)
- M44: 12,248,924 km (0.12 R)
- M45: 12,722,551 km (0.075 R)
- M46: 13,088,767 km (0.086 R)
- M47: 13,544,292 km (0.093 R)
- M48: 14,705,919 km (0.059 R)
- M49: 14,794,332 km (0.062 R)
- M50: 15,001,375 km (0.055 R)
- M51: 15,388,385 km (0.073 R)
- M52: 15,568,052 km (0.089 R)
- M53: 15,688,329 km (0.086 R)
- M54: 15,808,755 km (0.119 R)
- M55: 16,172,278 km (0.067 R)
- M56: 16,294,050 km (0.069 R)
- M57: 16,753,316 km (0.085 R)
- M58: 17,000,003 km (0.115 R)
- M59: 17,279,003 km (0.104 R)
- M60: 17,684,712 km (0.067 R)
- M61: 18,441,977 km (0.118 R)
- M62: 18,569,135 km (0.064 R)
- M63: 18,856,512 km (0.116 R)
- M64: 19,048,895 km (0.082 R)
- M65: 19,209,713 km (0.069 R)
- M66: 19,792,546 km (0.115 R)
- M67: 20,479,799 km (0.075 R)
- M68: 20,710,479 km (0.104 R)
- M69: 20,909,145 km (0.079 R)
- M70: 21,141,470 km (0.108 R)
- M71: 21,408,203 km (0.103 R)
- M72: 22,079,898 km (0.116 R)
- M73: 22,963,273 km (0.098 R)
Planet 6 - Gas Giant
Semi-Major Axis: 8.95 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 944.6
Radius: 11.7
Gravity: 6.9 G
Time & Orbit
Eccentricity (e): 0.178
Orbit Range: 7.36 AU - 10.54 AU
Year: 9636 Days
Day: 13.5 Hours
Environment
Temp: -168 °C
Axial Tilt: 24.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (82)
Outer Limit: 61,416,862 km
- M1: 375,790 km (0.087 R)
- M2: 470,934 km (0.093 R)
- M3: 592,258 km (0.075 R)
- M4: 908,358 km (0.095 R)
- M5: 1,106,725 km (0.095 R)
- M6: 1,211,593 km (0.119 R)
- M7: 1,319,902 km (0.103 R)
- M8: 1,477,429 km (0.119 R)
- M9: 1,593,965 km (0.029 R)
- M10: 2,720,138 km (0.106 R)
- M11: 2,922,843 km (0.116 R)
- M12: 3,070,945 km (0.101 R)
- M13: 3,848,106 km (0.086 R)
- M14: 4,822,886 km (0.059 R)
- M15: 5,538,113 km (0.048 R)
- M16: 5,648,217 km (0.057 R)
- M17: 5,722,119 km (0.069 R)
- M18: 6,478,485 km (0.087 R)
- M19: 6,555,977 km (0.047 R)
- M20: 6,987,118 km (0.051 R)
- M21: 7,146,141 km (0.063 R)
- M22: 7,468,075 km (0.054 R)
- M23: 7,959,804 km (0.079 R)
- M24: 8,377,630 km (0.053 R)
- M25: 9,321,892 km (0.029 R)
- M26: 9,409,407 km (0.06 R)
- M27: 10,029,939 km (0.063 R)
- M28: 10,526,753 km (0.101 R)
- M29: 10,847,042 km (0.107 R)
- M30: 11,077,872 km (0.104 R)
- M31: 11,263,672 km (0.102 R)
- M32: 13,178,076 km (0.078 R)
- M33: 13,871,762 km (0.078 R)
- M34: 13,971,843 km (0.093 R)
- M35: 14,934,505 km (0.066 R)
- M36: 15,242,976 km (0.046 R)
- M37: 15,449,720 km (0.054 R)
- M38: 15,553,541 km (0.075 R)
- M39: 17,030,371 km (0.113 R)
- M40: 18,003,356 km (0.078 R)
- M41: 18,496,580 km (0.099 R)
- M42: 19,664,790 km (0.116 R)
- M43: 21,201,609 km (0.025 R)
- M44: 23,310,191 km (0.079 R)
- M45: 24,328,952 km (0.05 R)
- M46: 25,301,189 km (0.053 R)
- M47: 25,484,895 km (0.093 R)
- M48: 26,100,341 km (0.071 R)
- M49: 26,534,174 km (0.105 R)
- M50: 27,032,784 km (0.085 R)
- M51: 27,534,535 km (0.095 R)
- M52: 28,102,708 km (0.116 R)
- M53: 28,229,567 km (0.118 R)
- M54: 28,547,313 km (0.099 R)
- M55: 29,572,357 km (0.112 R)
- M56: 30,479,070 km (0.093 R)
- M57: 30,935,792 km (0.111 R)
- M58: 31,132,364 km (0.083 R)
- M59: 33,791,317 km (0.108 R)
- M60: 34,875,153 km (0.083 R)
- M61: 35,284,453 km (0.092 R)
- M62: 35,489,851 km (0.091 R)
- M63: 36,107,989 km (0.07 R)
- M64: 37,494,612 km (0.11 R)
- M65: 38,828,127 km (0.092 R)
- M66: 39,820,560 km (0.049 R)
- M67: 40,606,098 km (0.103 R)
- M68: 40,749,562 km (0.115 R)
- M69: 41,541,234 km (0.12 R)
- M70: 42,410,697 km (0.111 R)
- M71: 42,774,669 km (0.106 R)
- M72: 43,359,297 km (0.026 R)
- M73: 43,946,618 km (0.038 R)
- M74: 45,054,840 km (0.111 R)
- M75: 45,798,790 km (0.079 R)
- M76: 46,172,186 km (0.099 R)
- M77: 47,374,205 km (0.071 R)
- M78: 47,600,696 km (0.051 R)
- M79: 49,043,717 km (0.111 R)
- M80: 49,578,978 km (0.118 R)
- M81: 49,732,167 km (0.111 R)
- M82: 51,816,962 km (0.082 R)
Planet 7 - Gas Giant
Semi-Major Axis: 9.02 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 958.4
Radius: 8.5
Gravity: 13.27 G
Time & Orbit
Eccentricity (e): 0.236
Orbit Range: 6.89 AU - 11.15 AU
Year: 9749 Days
Day: 6.3 Hours
Environment
Temp: -171 °C
Axial Tilt: 19.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (89)
Outer Limit: 61,416,862 km
- M1: 114,293 km (0.066 R)
- M2: 202,406 km (0.037 R)
- M3: 574,755 km (0.114 R)
- M4: 711,637 km (0.108 R)
- M5: 802,892 km (0.051 R)
- M6: 977,472 km (0.111 R)
- M7: 1,251,685 km (0.083 R)
- M8: 1,670,410 km (0.106 R)
- M9: 1,972,747 km (0.108 R)
- M10: 2,157,201 km (0.068 R)
- M11: 2,458,491 km (0.075 R)
- M12: 2,773,245 km (0.118 R)
- M13: 2,861,358 km (0.081 R)
- M14: 3,010,358 km (0.06 R)
- M15: 3,161,901 km (0.082 R)
- M16: 3,472,466 km (0.118 R)
- M17: 4,359,731 km (0.057 R)
- M18: 5,060,148 km (0.102 R)
- M19: 5,720,174 km (0.084 R)
- M20: 6,136,953 km (0.059 R)
- M21: 6,641,996 km (0.044 R)
- M22: 7,527,166 km (0.114 R)
- M23: 9,229,441 km (0.106 R)
- M24: 9,450,397 km (0.101 R)
- M25: 10,998,435 km (0.046 R)
- M26: 11,658,461 km (0.087 R)
- M27: 12,234,413 km (0.033 R)
- M28: 12,574,748 km (0.101 R)
- M29: 12,868,858 km (0.032 R)
- M30: 13,214,878 km (0.118 R)
- M31: 13,764,949 km (0.111 R)
- M32: 14,424,526 km (0.102 R)
- M33: 14,835,621 km (0.115 R)
- M34: 15,250,605 km (0.084 R)
- M35: 15,932,921 km (0.102 R)
- M36: 16,786,377 km (0.071 R)
- M37: 18,039,110 km (0.066 R)
- M38: 18,426,419 km (0.105 R)
- M39: 18,537,570 km (0.034 R)
- M40: 19,945,585 km (0.096 R)
- M41: 20,288,762 km (0.108 R)
- M42: 20,864,714 km (0.077 R)
- M43: 21,038,697 km (0.105 R)
- M44: 21,504,694 km (0.076 R)
- M45: 21,738,964 km (0.098 R)
- M46: 21,915,340 km (0.12 R)
- M47: 23,042,710 km (0.108 R)
- M48: 23,523,068 km (0.102 R)
- M49: 25,849,465 km (0.115 R)
- M50: 25,973,930 km (0.106 R)
- M51: 26,724,912 km (0.085 R)
- M52: 27,229,505 km (0.072 R)
- M53: 27,610,082 km (0.109 R)
- M54: 28,184,239 km (0.105 R)
- M55: 30,783,053 km (0.081 R)
- M56: 31,179,487 km (0.068 R)
- M57: 31,312,031 km (0.116 R)
- M58: 31,577,567 km (0.116 R)
- M59: 31,843,852 km (0.112 R)
- M60: 32,445,833 km (0.093 R)
- M61: 33,525,332 km (0.1 R)
- M62: 33,865,068 km (0.117 R)
- M63: 34,479,467 km (0.103 R)
- M64: 34,891,160 km (0.038 R)
- M65: 35,719,334 km (0.106 R)
- M66: 37,324,818 km (0.061 R)
- M67: 37,747,432 km (0.066 R)
- M68: 38,384,420 km (0.119 R)
- M69: 38,882,282 km (0.088 R)
- M70: 39,024,998 km (0.092 R)
- M71: 39,597,360 km (0.076 R)
- M72: 40,822,716 km (0.107 R)
- M73: 41,258,195 km (0.099 R)
- M74: 41,403,754 km (0.098 R)
- M75: 41,622,316 km (0.105 R)
- M76: 42,060,638 km (0.083 R)
- M77: 42,427,003 km (0.069 R)
- M78: 42,794,416 km (0.103 R)
- M79: 43,015,521 km (0.097 R)
- M80: 44,126,136 km (0.112 R)
- M81: 45,246,175 km (0.07 R)
- M82: 47,285,793 km (0.074 R)
- M83: 49,123,902 km (0.072 R)
- M84: 49,200,944 km (0.065 R)
- M85: 49,819,232 km (0.054 R)
- M86: 50,051,708 km (0.119 R)
- M87: 50,595,496 km (0.114 R)
- M88: 51,297,708 km (0.045 R)
- M89: 51,767,595 km (0.074 R)
Planet 8 - Gas Giant
Semi-Major Axis: 11.52 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 727.7
Radius: 10.7
Gravity: 6.36 G
Time & Orbit
Eccentricity (e): 0.052
Orbit Range: 10.92 AU - 12.12 AU
Year: 14072 Days
Day: 12 Hours
Environment
Temp: -172 °C
Axial Tilt: 38 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (87)
Outer Limit: 61,416,862 km
- M1: 138,528 km (0.087 R)
- M2: 641,775 km (0.098 R)
- M3: 923,617 km (0.101 R)
- M4: 1,572,124 km (0.069 R)
- M5: 2,492,001 km (0.093 R)
- M6: 3,005,571 km (0.091 R)
- M7: 3,172,821 km (0.117 R)
- M8: 3,377,770 km (0.067 R)
- M9: 3,516,747 km (0.097 R)
- M10: 3,622,363 km (0.092 R)
- M11: 4,055,299 km (0.115 R)
- M12: 4,390,847 km (0.116 R)
- M13: 4,852,207 km (0.086 R)
- M14: 5,450,898 km (0.099 R)
- M15: 6,157,448 km (0.115 R)
- M16: 6,456,943 km (0.105 R)
- M17: 6,543,261 km (0.101 R)
- M18: 7,248,615 km (0.108 R)
- M19: 7,338,524 km (0.115 R)
- M20: 7,747,674 km (0.093 R)
- M21: 8,117,480 km (0.087 R)
- M22: 8,683,259 km (0.088 R)
- M23: 8,970,936 km (0.066 R)
- M24: 10,203,024 km (0.086 R)
- M25: 10,303,853 km (0.091 R)
- M26: 10,405,130 km (0.096 R)
- M27: 10,813,233 km (0.086 R)
- M28: 10,916,007 km (0.034 R)
- M29: 11,540,129 km (0.118 R)
- M30: 11,645,147 km (0.082 R)
- M31: 12,068,958 km (0.1 R)
- M32: 12,877,086 km (0.072 R)
- M33: 13,425,511 km (0.069 R)
- M34: 13,591,565 km (0.106 R)
- M35: 14,319,059 km (0.105 R)
- M36: 14,488,703 km (0.117 R)
- M37: 15,289,202 km (0.029 R)
- M38: 16,933,282 km (0.092 R)
- M39: 17,292,766 km (0.063 R)
- M40: 17,715,529 km (0.073 R)
- M41: 17,958,626 km (0.108 R)
- M42: 18,202,770 km (0.096 R)
- M43: 19,377,711 km (0.057 R)
- M44: 19,502,775 km (0.119 R)
- M45: 20,960,606 km (0.12 R)
- M46: 23,712,310 km (0.093 R)
- M47: 26,021,652 km (0.073 R)
- M48: 28,544,022 km (0.085 R)
- M49: 28,829,155 km (0.084 R)
- M50: 30,486,400 km (0.109 R)
- M51: 31,952,609 km (0.108 R)
- M52: 34,194,782 km (0.068 R)
- M53: 34,649,260 km (0.112 R)
- M54: 35,640,795 km (0.093 R)
- M55: 35,947,770 km (0.111 R)
- M56: 36,255,642 km (0.12 R)
- M57: 36,951,572 km (0.117 R)
- M58: 37,106,705 km (0.082 R)
- M59: 37,651,839 km (0.095 R)
- M60: 39,540,662 km (0.112 R)
- M61: 39,858,408 km (0.06 R)
- M62: 40,656,662 km (0.076 R)
- M63: 40,736,847 km (0.055 R)
- M64: 41,379,669 km (0.09 R)
- M65: 42,431,342 km (0.074 R)
- M66: 43,001,310 km (0.049 R)
- M67: 43,082,840 km (0.066 R)
- M68: 43,573,671 km (0.07 R)
- M69: 44,395,861 km (0.053 R)
- M70: 46,222,750 km (0.026 R)
- M71: 46,473,775 km (0.098 R)
- M72: 46,725,249 km (0.115 R)
- M73: 48,158,846 km (0.068 R)
- M74: 49,521,234 km (0.093 R)
- M75: 49,863,813 km (0.113 R)
- M76: 50,035,401 km (0.085 R)
- M77: 50,637,383 km (0.118 R)
- M78: 51,588,377 km (0.08 R)
- M79: 53,508,017 km (0.116 R)
- M80: 55,628,716 km (0.092 R)
- M81: 55,717,727 km (0.112 R)
- M82: 57,506,917 km (0.042 R)
- M83: 57,776,792 km (0.109 R)
- M84: 58,679,914 km (0.114 R)
- M85: 60,134,454 km (0.073 R)
- M86: 60,408,518 km (0.112 R)
- M87: 60,682,880 km (0.108 R)
Kuiper Belt
Range: 30.5 - 48.5 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 534 - 17,177 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.