Star System Generated (Seed: 1767252125)
Star Details
Spectral Class: M6V
Temperature: 2,833 K
Mass: 0.29 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: 10.8 AU
Planetary System (7 Planets)
Planet 1 - Gas Giant
Semi-Major Axis: 0.64 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 39.7
Radius: 13.8
Gravity: 0.21 G
Time & Orbit
Eccentricity (e): 0.192
Orbit Range: 0.52 AU - 0.76 AU
Year: 347 Days
Day: 8.4 Hours
Environment
Temp: -147 °C
Axial Tilt: 25.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (16)
Outer Limit: 46,066,655 km
- M1: 178,321 km (0.103 R)
- M2: 265,985 km (0.112 R)
- M3: 355,145 km (0.097 R)
- M4: 485,744 km (0.114 R)
- M5: 603,927 km (0.106 R)
- M6: 697,724 km (0.11 R)
- M7: 835,953 km (0.109 R)
- M8: 969,993 km (0.085 R)
- M9: 1,184,815 km (0.059 R)
- M10: 1,284,447 km (0.1 R)
- M11: 1,380,190 km (0.073 R)
- M12: 1,529,937 km (0.118 R)
- M13: 1,685,370 km (0.108 R)
- M14: 1,775,428 km (0.102 R)
- M15: 1,864,737 km (0.098 R)
- M16: 1,958,236 km (0.085 R)
Planet 2 - Gas Giant
Semi-Major Axis: 0.94 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 146.6
Radius: 8.3
Gravity: 2.13 G
Time & Orbit
Eccentricity (e): 0.079
Orbit Range: 0.87 AU - 1.01 AU
Year: 618 Days
Day: 5.4 Hours
Environment
Temp: -169 °C
Axial Tilt: 25.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (44)
Outer Limit: 46,066,655 km
- M1: 103,971 km (0.101 R)
- M2: 159,771 km (0.082 R)
- M3: 213,626 km (0.055 R)
- M4: 310,864 km (0.064 R)
- M5: 388,805 km (0.086 R)
- M6: 448,794 km (0.088 R)
- M7: 530,624 km (0.089 R)
- M8: 618,138 km (0.068 R)
- M9: 731,234 km (0.03 R)
- M10: 873,801 km (0.113 R)
- M11: 952,340 km (0.109 R)
- M12: 1,009,935 km (0.085 R)
- M13: 1,112,859 km (0.09 R)
- M14: 1,398,740 km (0.118 R)
- M15: 1,514,230 km (0.103 R)
- M16: 1,577,809 km (0.091 R)
- M17: 1,656,048 km (0.032 R)
- M18: 1,773,782 km (0.109 R)
- M19: 1,826,440 km (0.094 R)
- M20: 1,967,960 km (0.063 R)
- M21: 2,057,569 km (0.049 R)
- M22: 2,113,070 km (0.063 R)
- M23: 2,246,212 km (0.052 R)
- M24: 2,298,122 km (0.072 R)
- M25: 2,361,103 km (0.065 R)
- M26: 2,440,540 km (0.051 R)
- M27: 2,558,722 km (0.098 R)
- M28: 2,635,017 km (0.06 R)
- M29: 2,712,060 km (0.104 R)
- M30: 2,907,734 km (0.077 R)
- M31: 3,021,877 km (0.026 R)
- M32: 3,160,554 km (0.119 R)
- M33: 3,213,213 km (0.04 R)
- M34: 3,277,839 km (0.084 R)
- M35: 3,372,684 km (0.1 R)
- M36: 3,510,763 km (0.107 R)
- M37: 3,607,852 km (0.091 R)
- M38: 3,669,037 km (0.119 R)
- M39: 3,835,989 km (0.069 R)
- M40: 4,081,479 km (0.079 R)
- M41: 4,138,775 km (0.07 R)
- M42: 4,196,519 km (0.091 R)
- M43: 4,319,190 km (0.112 R)
- M44: 4,456,072 km (0.06 R)
Asteroid Belt
Center: 1.22 AU
Composition
Type: Outer System (Icy)
A dense region of planetesimals and debris.
Boundary
Planet 3 - Gas Giant
Semi-Major Axis: 1.49 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 414.6
Radius: 11.7
Gravity: 3.03 G
Time & Orbit
Eccentricity (e): 0.103
Orbit Range: 1.34 AU - 1.64 AU
Year: 1234 Days
Day: 10.6 Hours
Environment
Temp: -199 °C
Axial Tilt: 23.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (55)
Outer Limit: 46,066,655 km
- M1: 155,432 km (0.086 R)
- M2: 273,166 km (0.093 R)
- M3: 348,862 km (0.081 R)
- M4: 430,842 km (0.057 R)
- M5: 536,757 km (0.089 R)
- M6: 767,437 km (0.11 R)
- M7: 882,927 km (0.068 R)
- M8: 959,072 km (0.119 R)
- M9: 1,118,842 km (0.115 R)
- M10: 1,223,561 km (0.072 R)
- M11: 1,589,029 km (0.075 R)
- M12: 1,691,952 km (0.112 R)
- M13: 1,838,109 km (0.047 R)
- M14: 2,065,498 km (0.077 R)
- M15: 2,187,121 km (0.057 R)
- M16: 2,364,993 km (0.114 R)
- M17: 2,566,501 km (0.115 R)
- M18: 2,697,698 km (0.073 R)
- M19: 2,860,012 km (0.096 R)
- M20: 2,976,698 km (0.05 R)
- M21: 3,214,709 km (0.09 R)
- M22: 3,635,976 km (0.111 R)
- M23: 3,901,512 km (0.099 R)
- M24: 4,063,826 km (0.101 R)
- M25: 4,184,402 km (0.113 R)
- M26: 4,328,465 km (0.08 R)
- M27: 4,496,762 km (0.112 R)
- M28: 4,633,046 km (0.071 R)
- M29: 5,049,975 km (0.119 R)
- M30: 5,322,692 km (0.098 R)
- M31: 5,418,734 km (0.112 R)
- M32: 5,515,225 km (0.09 R)
- M33: 5,600,346 km (0.109 R)
- M34: 5,870,370 km (0.043 R)
- M35: 6,182,431 km (0.098 R)
- M36: 6,321,557 km (0.082 R)
- M37: 6,796,979 km (0.095 R)
- M38: 6,901,249 km (0.063 R)
- M39: 7,058,776 km (0.099 R)
- M40: 7,164,541 km (0.108 R)
- M41: 7,284,070 km (0.049 R)
- M42: 7,592,541 km (0.119 R)
- M43: 7,836,984 km (0.114 R)
- M44: 8,194,672 km (0.046 R)
- M45: 8,375,536 km (0.112 R)
- M46: 8,459,460 km (0.066 R)
- M47: 8,571,808 km (0.099 R)
- M48: 8,769,726 km (0.111 R)
- M49: 8,983,352 km (0.095 R)
- M50: 9,112,306 km (0.092 R)
- M51: 9,401,329 km (0.104 R)
- M52: 9,590,719 km (0.099 R)
- M53: 9,781,457 km (0.038 R)
- M54: 9,899,340 km (0.098 R)
- M55: 9,973,391 km (0.11 R)
Planet 4 - Gas Giant
Semi-Major Axis: 1.69 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 464.6
Radius: 11.4
Gravity: 3.57 G
Time & Orbit
Eccentricity (e): 0.234
Orbit Range: 1.29 AU - 2.09 AU
Year: 1490 Days
Day: 14.5 Hours
Environment
Temp: -192 °C
Axial Tilt: 8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (66)
Outer Limit: 46,066,655 km
- M1: 188,045 km (0.065 R)
- M2: 292,613 km (0.08 R)
- M3: 484,248 km (0.1 R)
- M4: 568,472 km (0.108 R)
- M5: 652,396 km (0.114 R)
- M6: 807,679 km (0.048 R)
- M7: 925,562 km (0.109 R)
- M8: 1,034,918 km (0.056 R)
- M9: 1,141,133 km (0.041 R)
- M10: 1,235,230 km (0.075 R)
- M11: 1,440,179 km (0.09 R)
- M12: 1,525,449 km (0.086 R)
- M13: 1,746,256 km (0.046 R)
- M14: 1,828,385 km (0.106 R)
- M15: 2,044,255 km (0.055 R)
- M16: 2,219,284 km (0.088 R)
- M17: 2,328,640 km (0.075 R)
- M18: 2,419,596 km (0.04 R)
- M19: 2,491,104 km (0.09 R)
- M20: 2,563,360 km (0.116 R)
- M21: 2,773,993 km (0.073 R)
- M22: 2,924,788 km (0.082 R)
- M23: 3,078,275 km (0.106 R)
- M24: 3,268,414 km (0.098 R)
- M25: 3,347,851 km (0.079 R)
- M26: 3,451,073 km (0.108 R)
- M27: 3,601,868 km (0.05 R)
- M28: 3,754,907 km (0.119 R)
- M29: 3,934,274 km (0.114 R)
- M30: 4,091,951 km (0.034 R)
- M31: 4,190,087 km (0.055 R)
- M32: 4,376,336 km (0.119 R)
- M33: 4,565,278 km (0.074 R)
- M34: 4,667,154 km (0.081 R)
- M35: 4,912,196 km (0.066 R)
- M36: 5,241,161 km (0.08 R)
- M37: 5,334,510 km (0.058 R)
- M38: 5,482,463 km (0.098 R)
- M39: 5,699,978 km (0.11 R)
- M40: 5,823,696 km (0.078 R)
- M41: 6,031,786 km (0.111 R)
- M42: 6,228,208 km (0.109 R)
- M43: 6,327,242 km (0.116 R)
- M44: 6,412,662 km (0.068 R)
- M45: 6,830,489 km (0.105 R)
- M46: 6,932,665 km (0.084 R)
- M47: 7,153,321 km (0.086 R)
- M48: 7,391,332 km (0.082 R)
- M49: 7,632,035 km (0.083 R)
- M50: 8,167,445 km (0.113 R)
- M51: 8,416,227 km (0.076 R)
- M52: 8,651,843 km (0.067 R)
- M53: 8,794,260 km (0.106 R)
- M54: 8,873,697 km (0.106 R)
- M55: 9,001,304 km (0.076 R)
- M56: 9,081,488 km (0.092 R)
- M57: 9,274,619 km (0.108 R)
- M58: 9,616,002 km (0.063 R)
- M59: 9,697,832 km (0.102 R)
- M60: 9,829,328 km (0.098 R)
- M61: 10,094,116 km (0.07 R)
- M62: 10,495,787 km (0.111 R)
- M63: 10,834,476 km (0.092 R)
- M64: 10,988,113 km (0.096 R)
- M65: 11,142,349 km (0.063 R)
- M66: 11,401,303 km (0.087 R)
Planet 5 - Gas Giant
Semi-Major Axis: 2.41 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 425.5
Radius: 8
Gravity: 6.65 G
Time & Orbit
Eccentricity (e): 0.21
Orbit Range: 1.9 AU - 2.92 AU
Year: 2538 Days
Day: 11.9 Hours
Environment
Temp: -200 °C
Axial Tilt: 136.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (65)
Outer Limit: 46,066,655 km
- M1: 103,671 km (0.057 R)
- M2: 234,719 km (0.089 R)
- M3: 333,005 km (0.073 R)
- M4: 394,789 km (0.09 R)
- M5: 447,597 km (0.099 R)
- M6: 591,660 km (0.083 R)
- M7: 1,093,710 km (0.105 R)
- M8: 1,374,954 km (0.107 R)
- M9: 1,448,855 km (0.105 R)
- M10: 1,524,103 km (0.094 R)
- M11: 1,701,227 km (0.052 R)
- M12: 1,861,596 km (0.098 R)
- M13: 1,931,907 km (0.092 R)
- M14: 2,003,265 km (0.119 R)
- M15: 2,111,724 km (0.109 R)
- M16: 2,297,075 km (0.095 R)
- M17: 2,372,622 km (0.077 R)
- M18: 2,474,798 km (0.052 R)
- M19: 2,830,392 km (0.111 R)
- M20: 2,939,000 km (0.12 R)
- M21: 3,048,805 km (0.057 R)
- M22: 3,104,305 km (0.1 R)
- M23: 3,258,690 km (0.096 R)
- M24: 3,429,830 km (0.059 R)
- M25: 3,516,597 km (0.11 R)
- M26: 3,961,352 km (0.089 R)
- M27: 4,661,619 km (0.088 R)
- M28: 5,083,635 km (0.103 R)
- M29: 5,199,274 km (0.102 R)
- M30: 5,299,205 km (0.061 R)
- M31: 5,467,054 km (0.113 R)
- M32: 5,517,768 km (0.107 R)
- M33: 5,722,268 km (0.048 R)
- M34: 6,068,587 km (0.056 R)
- M35: 6,173,755 km (0.045 R)
- M36: 6,297,322 km (0.026 R)
- M37: 6,457,392 km (0.07 R)
- M38: 6,600,856 km (0.115 R)
- M39: 7,315,037 km (0.026 R)
- M40: 7,427,085 km (0.111 R)
- M41: 7,596,281 km (0.114 R)
- M42: 8,111,346 km (0.099 R)
- M43: 8,363,419 km (0.064 R)
- M44: 8,480,703 km (0.084 R)
- M45: 8,657,528 km (0.106 R)
- M46: 9,055,010 km (0.08 R)
- M47: 9,764,702 km (0.071 R)
- M48: 10,240,872 km (0.087 R)
- M49: 10,660,943 km (0.106 R)
- M50: 10,745,765 km (0.072 R)
- M51: 11,409,830 km (0.104 R)
- M52: 11,714,261 km (0.115 R)
- M53: 12,087,358 km (0.084 R)
- M54: 12,219,902 km (0.065 R)
- M55: 12,822,781 km (0.119 R)
- M56: 13,071,114 km (0.057 R)
- M57: 13,343,831 km (0.088 R)
- M58: 13,687,457 km (0.1 R)
- M59: 14,570,982 km (0.099 R)
- M60: 14,877,359 km (0.079 R)
- M61: 15,233,701 km (0.069 R)
- M62: 15,305,209 km (0.103 R)
- M63: 15,833,738 km (0.048 R)
- M64: 16,148,791 km (0.087 R)
- M65: 16,246,179 km (0.095 R)
Planet 6 - Gas Giant
Semi-Major Axis: 2.88 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 606.8
Radius: 14.2
Gravity: 3.01 G
Time & Orbit
Eccentricity (e): 0.155
Orbit Range: 2.43 AU - 3.33 AU
Year: 3315 Days
Day: 9 Hours
Environment
Temp: -202 °C
Axial Tilt: 26.4 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (74)
Outer Limit: 46,066,655 km
- M1: 225,145 km (0.111 R)
- M2: 385,364 km (0.062 R)
- M3: 547,528 km (0.074 R)
- M4: 644,019 km (0.046 R)
- M5: 827,276 km (0.085 R)
- M6: 1,018,462 km (0.077 R)
- M7: 1,237,474 km (0.052 R)
- M8: 1,472,791 km (0.085 R)
- M9: 1,629,270 km (0.098 R)
- M10: 1,736,831 km (0.111 R)
- M11: 2,251,598 km (0.095 R)
- M12: 2,620,805 km (0.045 R)
- M13: 2,716,249 km (0.115 R)
- M14: 3,109,990 km (0.094 R)
- M15: 3,245,376 km (0.086 R)
- M16: 3,434,767 km (0.109 R)
- M17: 3,627,898 km (0.087 R)
- M18: 3,734,860 km (0.034 R)
- M19: 3,915,425 km (0.105 R)
- M20: 4,210,582 km (0.038 R)
- M21: 4,436,774 km (0.06 R)
- M22: 4,960,366 km (0.088 R)
- M23: 5,119,389 km (0.095 R)
- M24: 5,401,830 km (0.078 R)
- M25: 5,586,134 km (0.073 R)
- M26: 5,939,933 km (0.077 R)
- M27: 6,365,689 km (0.114 R)
- M28: 6,713,504 km (0.096 R)
- M29: 6,889,730 km (0.117 R)
- M30: 7,224,530 km (0.056 R)
- M31: 7,382,505 km (0.113 R)
- M32: 7,587,454 km (0.102 R)
- M33: 7,863,612 km (0.087 R)
- M34: 8,166,548 km (0.078 R)
- M35: 8,354,891 km (0.091 R)
- M36: 8,880,429 km (0.111 R)
- M37: 9,122,777 km (0.115 R)
- M38: 9,540,006 km (0.089 R)
- M39: 9,663,873 km (0.098 R)
- M40: 10,064,047 km (0.084 R)
- M41: 10,165,026 km (0.05 R)
- M42: 10,571,932 km (0.083 R)
- M43: 10,984,224 km (0.078 R)
- M44: 11,244,674 km (0.103 R)
- M45: 11,349,392 km (0.073 R)
- M46: 11,612,684 km (0.117 R)
- M47: 12,333,746 km (0.074 R)
- M48: 12,604,518 km (0.043 R)
- M49: 12,822,632 km (0.069 R)
- M50: 13,623,429 km (0.036 R)
- M51: 13,875,352 km (0.109 R)
- M52: 13,987,700 km (0.109 R)
- M53: 14,525,953 km (0.098 R)
- M54: 14,898,153 km (0.047 R)
- M55: 15,071,088 km (0.078 R)
- M56: 15,389,731 km (0.119 R)
- M57: 15,710,619 km (0.106 R)
- M58: 16,033,601 km (0.112 R)
- M59: 16,151,783 km (0.099 R)
- M60: 16,388,746 km (0.065 R)
- M61: 16,626,756 km (0.113 R)
- M62: 16,866,113 km (0.069 R)
- M63: 17,166,804 km (0.037 R)
- M64: 17,287,530 km (0.043 R)
- M65: 17,378,336 km (0.095 R)
- M66: 17,926,313 km (0.097 R)
- M67: 18,263,955 km (0.083 R)
- M68: 18,479,975 km (0.1 R)
- M69: 18,727,858 km (0.077 R)
- M70: 19,101,853 km (0.106 R)
- M71: 20,111,040 km (0.088 R)
- M72: 20,718,557 km (0.09 R)
- M73: 20,943,851 km (0.073 R)
- M74: 21,332,058 km (0.114 R)
Planet 7 - Ice Giant
Semi-Major Axis: 5.82 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 670.5
Radius: 5.1
Gravity: 25.78 G
Time & Orbit
Eccentricity (e): 0.166
Orbit Range: 4.85 AU - 6.79 AU
Year: 9523 Days
Day: 22.1 Hours
Environment
Temp: -225 °C
Axial Tilt: 36.1 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (94)
Outer Limit: 46,066,655 km
- M1: 183,856 km (0.078 R)
- M2: 314,455 km (0.056 R)
- M3: 404,213 km (0.068 R)
- M4: 517,309 km (0.102 R)
- M5: 624,721 km (0.114 R)
- M6: 897,288 km (0.114 R)
- M7: 1,431,801 km (0.114 R)
- M8: 1,562,101 km (0.091 R)
- M9: 1,651,112 km (0.099 R)
- M10: 2,551,092 km (0.106 R)
- M11: 3,231,164 km (0.064 R)
- M12: 3,287,862 km (0.114 R)
- M13: 3,723,940 km (0.059 R)
- M14: 4,178,119 km (0.116 R)
- M15: 4,427,349 km (0.106 R)
- M16: 4,681,516 km (0.101 R)
- M17: 5,104,728 km (0.082 R)
- M18: 5,371,162 km (0.099 R)
- M19: 5,472,290 km (0.073 R)
- M20: 5,745,007 km (0.099 R)
- M21: 5,779,415 km (0.087 R)
- M22: 5,848,379 km (0.056 R)
- M23: 6,022,062 km (0.096 R)
- M24: 6,374,664 km (0.059 R)
- M25: 6,517,530 km (0.039 R)
- M26: 7,247,718 km (0.072 R)
- M27: 7,850,447 km (0.087 R)
- M28: 8,080,529 km (0.081 R)
- M29: 8,390,945 km (0.108 R)
- M30: 8,508,229 km (0.084 R)
- M31: 8,863,674 km (0.078 R)
- M32: 10,712,255 km (0.12 R)
- M33: 10,924,833 km (0.063 R)
- M34: 11,397,263 km (0.091 R)
- M35: 12,406,600 km (0.092 R)
- M36: 12,899,376 km (0.093 R)
- M37: 12,989,733 km (0.045 R)
- M38: 13,034,911 km (0.083 R)
- M39: 13,125,568 km (0.086 R)
- M40: 13,352,956 km (0.102 R)
- M41: 14,043,051 km (0.096 R)
- M42: 14,369,025 km (0.094 R)
- M43: 14,603,445 km (0.104 R)
- M44: 14,839,062 km (0.105 R)
- M45: 15,649,732 km (0.043 R)
- M46: 16,818,391 km (0.082 R)
- M47: 17,015,860 km (0.12 R)
- M48: 17,214,227 km (0.072 R)
- M49: 17,713,136 km (0.087 R)
- M50: 17,813,516 km (0.051 R)
- M51: 17,863,781 km (0.105 R)
- M52: 18,065,289 km (0.076 R)
- M53: 18,623,439 km (0.063 R)
- M54: 18,930,115 km (0.075 R)
- M55: 19,187,124 km (0.029 R)
- M56: 19,600,612 km (0.105 R)
- M57: 20,173,871 km (0.113 R)
- M58: 21,872,854 km (0.107 R)
- M59: 22,034,420 km (0.045 R)
- M60: 22,250,589 km (0.079 R)
- M61: 22,521,660 km (0.117 R)
- M62: 22,739,325 km (0.098 R)
- M63: 22,903,135 km (0.096 R)
- M64: 23,561,964 km (0.081 R)
- M65: 24,898,172 km (0.105 R)
- M66: 26,602,690 km (0.073 R)
- M67: 26,717,581 km (0.118 R)
- M68: 27,236,985 km (0.1 R)
- M69: 27,759,830 km (0.091 R)
- M70: 29,347,811 km (0.118 R)
- M71: 30,122,878 km (0.117 R)
- M72: 30,844,239 km (0.1 R)
- M73: 33,537,748 km (0.104 R)
- M74: 34,222,757 km (0.12 R)
- M75: 34,410,353 km (0.044 R)
- M76: 35,987,264 km (0.108 R)
- M77: 36,560,672 km (0.114 R)
- M78: 37,072,896 km (0.103 R)
- M79: 38,104,522 km (0.12 R)
- M80: 38,428,701 km (0.051 R)
- M81: 38,688,852 km (0.088 R)
- M82: 38,884,376 km (0.099 R)
- M83: 39,538,268 km (0.11 R)
- M84: 40,195,751 km (0.111 R)
- M85: 40,261,724 km (0.11 R)
- M86: 40,724,430 km (0.065 R)
- M87: 41,455,066 km (0.091 R)
- M88: 42,056,001 km (0.049 R)
- M89: 42,257,060 km (0.101 R)
- M90: 43,469,551 km (0.088 R)
- M91: 44,080,060 km (0.099 R)
- M92: 44,830,144 km (0.094 R)
- M93: 45,035,541 km (0.045 R)
- M94: 45,378,270 km (0.092 R)
Kuiper Belt
Range: 30 - 60 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 185 - 16,827 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.