🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.74 AU - 0.74 AU

Year: 239 Days

Day: 24.2 Hours

Environment

Temp: 133 °C

Axial Tilt: 26.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,314,665 km

• M1: 209,886 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.71 AU - 1.05 AU

Year: 309 Days

Day: 30.6 Hours

Environment

Temp: 39 °C

Axial Tilt: 33.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 71,314,665 km

• M1: 388,655 km (0.109 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.33 AU - 1.87 AU

Year: 758 Days

Day: 27.6 Hours

Environment

Temp: -48 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.84 AU - 2.28 AU

Year: 1108 Days

Day: 45.3 Hours

Environment

Temp: -70 °C

Axial Tilt: 2.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.7 AU - 2.72 AU

Year: 1231 Days

Day: 44.4 Hours

Environment

Temp: -93 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.6

Radius: 14.2

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 4.54 AU - 4.8 AU

Year: 3782 Days

Day: 13.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,314,665 km

• M1: 178,021 km (0.075 R)
• M2: 326,123 km (0.063 R)
• M3: 482,603 km (0.112 R)
• M4: 580,589 km (0.081 R)
• M5: 754,272 km (0.105 R)
• M6: 936,034 km (0.108 R)
• M7: 1,108,819 km (0.068 R)
• M8: 1,254,079 km (0.058 R)
• M9: 1,522,757 km (0.1 R)
• M10: 1,628,522 km (0.116 R)
• M11: 1,788,443 km (0.056 R)
• M12: 1,915,750 km (0.096 R)
• M13: 2,219,733 km (0.117 R)
• M14: 2,522,818 km (0.103 R)
• M15: 2,658,205 km (0.05 R)
• M16: 2,761,277 km (0.109 R)
• M17: 2,874,673 km (0.074 R)
• M18: 3,597,081 km (0.119 R)
• M19: 3,740,545 km (0.043 R)
• M20: 3,837,335 km (0.105 R)
• M21: 4,013,711 km (0.044 R)
• M22: 4,333,850 km (0.029 R)
• M23: 4,466,394 km (0.057 R)
• M24: 4,600,284 km (0.07 R)
• M25: 4,808,973 km (0.115 R)
• M26: 4,978,168 km (0.116 R)
• M27: 5,106,374 km (0.05 R)
• M28: 5,887,574 km (0.113 R)
• M29: 6,034,778 km (0.074 R)
• M30: 6,367,484 km (0.093 R)
• M31: 6,682,836 km (0.099 R)
• M32: 6,883,896 km (0.108 R)
• M33: 7,039,178 km (0.093 R)
• M34: 7,195,508 km (0.104 R)
• M35: 7,304,415 km (0.113 R)
• M36: 7,671,678 km (0.059 R)
• M37: 7,982,243 km (0.114 R)
• M38: 8,132,888 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.5

Radius: 8.5

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.69 AU - 7.07 AU

Year: 6039 Days

Day: 10.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 71,314,665 km

• M1: 158,873 km (0.085 R)
• M2: 264,788 km (0.054 R)
• M3: 606,619 km (0.095 R)
• M4: 1,325,886 km (0.098 R)
• M5: 1,728,753 km (0.08 R)
• M6: 1,805,945 km (0.117 R)
• M7: 2,044,853 km (0.105 R)
• M8: 2,230,803 km (0.087 R)
• M9: 2,619,309 km (0.107 R)
• M10: 2,912,970 km (0.074 R)
• M11: 3,122,706 km (0.104 R)
• M12: 3,217,401 km (0.097 R)
• M13: 3,556,689 km (0.116 R)
• M14: 3,630,890 km (0.092 R)
• M15: 4,190,984 km (0.037 R)
• M16: 4,269,374 km (0.112 R)
• M17: 4,696,326 km (0.097 R)
• M18: 4,914,888 km (0.104 R)
• M19: 5,025,441 km (0.05 R)
• M20: 5,136,742 km (0.075 R)
• M21: 5,418,884 km (0.087 R)
• M22: 5,504,454 km (0.115 R)
• M23: 5,619,345 km (0.094 R)
• M24: 5,734,984 km (0.099 R)
• M25: 5,968,656 km (0.104 R)
• M26: 6,445,574 km (0.048 R)
• M27: 6,627,634 km (0.084 R)
• M28: 6,780,523 km (0.103 R)
• M29: 6,965,726 km (0.06 R)
• M30: 7,090,041 km (0.099 R)
• M31: 7,215,105 km (0.046 R)
• M32: 8,013,509 km (0.098 R)
• M33: 8,078,584 km (0.118 R)
• M34: 8,176,571 km (0.06 R)
• M35: 8,505,836 km (0.096 R)
• M36: 9,382,629 km (0.046 R)
• M37: 9,658,188 km (0.093 R)
• M38: 9,936,291 km (0.09 R)
• M39: 10,041,308 km (0.065 R)
• M40: 11,003,073 km (0.088 R)
• M41: 11,771,258 km (0.093 R)
• M42: 12,143,158 km (0.102 R)
• M43: 12,293,055 km (0.101 R)
• M44: 12,822,333 km (0.091 R)
• M45: 14,335,665 km (0.11 R)
• M46: 15,375,669 km (0.117 R)
• M47: 16,109,895 km (0.117 R)
• M48: 16,192,174 km (0.111 R)
• M49: 16,315,892 km (0.105 R)
• M50: 16,398,470 km (0.072 R)
• M51: 17,064,629 km (0.107 R)
• M52: 17,824,437 km (0.111 R)
• M53: 18,466,212 km (0.106 R)
• M54: 18,681,782 km (0.105 R)
• M55: 18,768,250 km (0.115 R)
• M56: 19,202,532 km (0.103 R)
• M57: 19,289,748 km (0.102 R)
• M58: 19,377,263 km (0.073 R)
• M59: 19,508,610 km (0.106 R)
• M60: 19,728,070 km (0.051 R)
• M61: 20,036,989 km (0.083 R)
• M62: 20,125,402 km (0.1 R)
• M63: 20,436,266 km (0.094 R)
• M64: 20,704,046 km (0.08 R)
• M65: 21,152,690 km (0.116 R)
• M66: 21,514,119 km (0.068 R)
• M67: 21,831,864 km (0.092 R)
• M68: 23,444,230 km (0.108 R)
• M69: 24,052,794 km (0.113 R)
• M70: 25,333,502 km (0.09 R)
• M71: 26,538,812 km (0.109 R)
• M72: 26,782,208 km (0.107 R)
• M73: 26,879,745 km (0.056 R)
• M74: 28,605,656 km (0.114 R)
• M75: 30,367,171 km (0.06 R)
• M76: 30,774,825 km (0.063 R)
• M77: 32,215,453 km (0.103 R)
• M78: 32,319,274 km (0.09 R)
• M79: 32,475,005 km (0.115 R)
• M80: 32,943,994 km (0.092 R)
• M81: 33,310,359 km (0.096 R)
• M82: 33,941,513 km (0.104 R)
• M83: 34,099,937 km (0.104 R)
• M84: 34,205,553 km (0.108 R)
• M85: 34,311,468 km (0.116 R)
• M86: 34,682,770 km (0.093 R)
• M87: 34,735,878 km (0.072 R)
• M88: 34,948,905 km (0.053 R)
• M89: 35,002,162 km (0.029 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.4

Radius: 9.5

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 9.06 AU - 11.86 AU

Year: 12677 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 71,314,665 km

• M1: 209,587 km (0.057 R)
• M2: 292,613 km (0.058 R)
• M3: 2,128,179 km (0.066 R)
• M4: 2,338,664 km (0.104 R)
• M5: 2,524,464 km (0.042 R)
• M6: 3,043,718 km (0.102 R)
• M7: 3,315,687 km (0.119 R)
• M8: 3,454,813 km (0.052 R)
• M9: 4,216,117 km (0.088 R)
• M10: 4,635,290 km (0.096 R)
• M11: 5,268,687 km (0.104 R)
• M12: 5,472,290 km (0.072 R)
• M13: 6,013,685 km (0.097 R)
• M14: 6,269,348 km (0.051 R)
• M15: 6,528,601 km (0.075 R)
• M16: 6,615,816 km (0.077 R)
• M17: 6,703,481 km (0.097 R)
• M18: 6,968,568 km (0.108 R)
• M19: 7,057,728 km (0.044 R)
• M20: 7,192,217 km (0.075 R)
• M21: 7,282,275 km (0.091 R)
• M22: 7,418,259 km (0.079 R)
• M23: 7,646,546 km (0.058 R)
• M24: 8,251,220 km (0.109 R)
• M25: 8,822,834 km (0.077 R)
• M26: 9,211,190 km (0.068 R)
• M27: 9,407,462 km (0.1 R)
• M28: 9,904,127 km (0.117 R)
• M29: 10,105,187 km (0.062 R)
• M30: 12,028,417 km (0.111 R)
• M31: 12,894,439 km (0.034 R)
• M32: 13,169,101 km (0.107 R)
• M33: 13,335,005 km (0.055 R)
• M34: 13,612,808 km (0.076 R)
• M35: 14,117,701 km (0.117 R)
• M36: 16,494,811 km (0.086 R)
• M37: 16,673,580 km (0.096 R)
• M38: 16,793,109 km (0.091 R)
• M39: 18,682,081 km (0.1 R)
• M40: 18,806,248 km (0.053 R)
• M41: 20,381,513 km (0.065 R)
• M42: 20,701,653 km (0.08 R)
• M43: 20,894,484 km (0.078 R)
• M44: 21,476,719 km (0.114 R)
• M45: 21,671,944 km (0.079 R)
• M46: 21,998,666 km (0.114 R)
• M47: 22,789,590 km (0.098 R)
• M48: 23,791,148 km (0.106 R)
• M49: 24,060,574 km (0.047 R)
• M50: 24,263,428 km (0.113 R)
• M51: 25,285,930 km (0.092 R)
• M52: 25,423,410 km (0.105 R)
• M53: 27,302,509 km (0.085 R)
• M54: 28,009,808 km (0.061 R)
• M55: 28,508,567 km (0.084 R)
• M56: 30,022,198 km (0.055 R)
• M57: 30,386,469 km (0.093 R)
• M58: 30,532,477 km (0.116 R)
• M59: 32,378,514 km (0.12 R)
• M60: 32,602,462 km (0.075 R)
• M61: 32,752,060 km (0.062 R)
• M62: 33,051,854 km (0.087 R)
• M63: 33,881,075 km (0.118 R)
• M64: 34,564,738 km (0.059 R)
• M65: 35,176,144 km (0.041 R)
• M66: 36,409,878 km (0.057 R)
• M67: 40,355,372 km (0.063 R)
• M68: 40,757,341 km (0.102 R)
• M69: 42,623,575 km (0.086 R)
• M70: 43,938,091 km (0.07 R)
• M71: 44,434,457 km (0.056 R)
• M72: 46,944,111 km (0.099 R)
• M73: 50,102,272 km (0.068 R)
• M74: 50,274,908 km (0.07 R)
• M75: 50,967,396 km (0.117 R)
• M76: 51,227,996 km (0.09 R)
• M77: 51,750,391 km (0.066 R)
• M78: 52,099,702 km (0.059 R)
• M79: 52,187,068 km (0.117 R)
• M80: 54,211,576 km (0.074 R)
• M81: 54,832,856 km (0.04 R)
• M82: 56,261,814 km (0.093 R)
• M83: 56,441,182 km (0.052 R)
• M84: 56,710,758 km (0.071 R)
• M85: 56,890,724 km (0.091 R)
• M86: 57,341,462 km (0.096 R)
• M87: 57,702,891 km (0.103 R)
• M88: 58,427,842 km (0.037 R)
• M89: 58,973,725 km (0.105 R)
• M90: 59,064,830 km (0.056 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.2

Radius: 12.7

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 10.25 AU - 12.17 AU

Year: 14065 Days

Day: 8.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 71,314,665 km

• M1: 265,387 km (0.118 R)
• M2: 355,445 km (0.115 R)
• M3: 566,976 km (0.084 R)
• M4: 664,963 km (0.075 R)
• M5: 769,681 km (0.086 R)
• M6: 1,038,060 km (0.096 R)
• M7: 1,227,002 km (0.084 R)
• M8: 1,337,255 km (0.112 R)
• M9: 1,450,950 km (0.11 R)
• M10: 1,664,127 km (0.063 R)
• M11: 2,505,016 km (0.08 R)
• M12: 2,880,507 km (0.054 R)
• M13: 2,969,817 km (0.105 R)
• M14: 3,060,024 km (0.045 R)
• M15: 3,305,215 km (0.107 R)
• M16: 3,946,392 km (0.026 R)
• M17: 4,079,235 km (0.098 R)
• M18: 4,281,491 km (0.087 R)
• M19: 4,383,816 km (0.059 R)
• M20: 4,626,015 km (0.063 R)
• M21: 5,195,983 km (0.069 R)
• M22: 5,939,783 km (0.058 R)
• M23: 6,876,266 km (0.092 R)
• M24: 7,198,799 km (0.05 R)
• M25: 7,733,312 km (0.115 R)
• M26: 7,816,788 km (0.112 R)
• M27: 8,111,047 km (0.038 R)
• M28: 8,667,252 km (0.063 R)
• M29: 8,884,618 km (0.052 R)
• M30: 9,816,762 km (0.107 R)
• M31: 10,919,897 km (0.095 R)
• M32: 11,107,642 km (0.103 R)
• M33: 11,249,161 km (0.115 R)
• M34: 12,062,226 km (0.084 R)
• M35: 12,451,480 km (0.118 R)
• M36: 12,844,772 km (0.09 R)
• M37: 14,049,484 km (0.051 R)
• M38: 14,202,523 km (0.107 R)
• M39: 14,407,621 km (0.057 R)
• M40: 15,500,135 km (0.116 R)
• M41: 15,764,175 km (0.093 R)
• M42: 16,243,187 km (0.108 R)
• M43: 16,673,131 km (0.067 R)
• M44: 18,878,354 km (0.112 R)
• M45: 19,500,681 km (0.106 R)
• M46: 20,129,889 km (0.114 R)
• M47: 20,475,909 km (0.077 R)
• M48: 20,998,604 km (0.106 R)
• M49: 21,525,638 km (0.119 R)
• M50: 22,354,260 km (0.118 R)
• M51: 23,616,717 km (0.115 R)
• M52: 24,287,214 km (0.1 R)
• M53: 24,594,040 km (0.065 R)
• M54: 24,778,793 km (0.118 R)
• M55: 25,709,441 km (0.061 R)
• M56: 26,462,218 km (0.071 R)
• M57: 27,222,175 km (0.083 R)
• M58: 27,796,780 km (0.106 R)
• M59: 27,924,986 km (0.083 R)
• M60: 28,569,304 km (0.072 R)
• M61: 29,806,777 km (0.077 R)
• M62: 32,604,108 km (0.118 R)
• M63: 33,282,385 km (0.107 R)
• M64: 33,828,267 km (0.068 R)
• M65: 36,181,741 km (0.042 R)
• M66: 37,803,532 km (0.086 R)
• M67: 37,945,650 km (0.061 R)
• M68: 40,099,260 km (0.085 R)
• M69: 43,328,779 km (0.107 R)
• M70: 44,673,963 km (0.099 R)
• M71: 45,653,979 km (0.119 R)
• M72: 45,881,069 km (0.1 R)
• M73: 46,869,910 km (0.027 R)
• M74: 47,635,253 km (0.107 R)
• M75: 48,250,400 km (0.113 R)
• M76: 49,411,130 km (0.102 R)
• M77: 49,722,143 km (0.091 R)
• M78: 51,917,941 km (0.073 R)
• M79: 52,234,191 km (0.113 R)
• M80: 52,868,635 km (0.046 R)
• M81: 53,027,658 km (0.088 R)
• M82: 53,186,681 km (0.095 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.9

Radius: 11.7

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 10.02 AU - 13.42 AU

Year: 15036 Days

Day: 6.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 71,314,665 km

• M1: 170,691 km (0.087 R)
• M2: 276,307 km (0.095 R)
• M3: 443,857 km (0.026 R)
• M4: 533,915 km (0.114 R)
• M5: 941,270 km (0.109 R)
• M6: 1,379,741 km (0.116 R)
• M7: 1,578,108 km (0.041 R)
• M8: 1,695,841 km (0.115 R)
• M9: 2,067,143 km (0.102 R)
• M10: 2,671,519 km (0.071 R)
• M11: 2,813,038 km (0.096 R)
• M12: 3,104,006 km (0.066 R)
• M13: 3,290,704 km (0.045 R)
• M14: 3,481,292 km (0.088 R)
• M15: 4,238,856 km (0.117 R)
• M16: 5,580,449 km (0.05 R)
• M17: 6,273,836 km (0.096 R)
• M18: 6,368,381 km (0.087 R)
• M19: 6,511,098 km (0.106 R)
• M20: 6,606,840 km (0.088 R)
• M21: 7,141,653 km (0.079 R)
• M22: 7,640,113 km (0.102 R)
• M23: 7,741,091 km (0.093 R)
• M24: 8,408,896 km (0.059 R)
• M25: 9,526,392 km (0.075 R)
• M26: 9,635,150 km (0.112 R)
• M27: 10,973,752 km (0.103 R)
• M28: 11,898,267 km (0.065 R)
• M29: 12,015,701 km (0.089 R)
• M30: 12,192,376 km (0.116 R)
• M31: 12,310,708 km (0.117 R)
• M32: 12,429,339 km (0.084 R)
• M33: 12,608,109 km (0.037 R)
• M34: 13,210,090 km (0.105 R)
• M35: 13,331,564 km (0.109 R)
• M36: 14,504,710 km (0.103 R)
• M37: 14,818,866 km (0.099 R)
• M38: 16,033,301 km (0.059 R)
• M39: 16,619,725 km (0.106 R)
• M40: 17,080,636 km (0.095 R)
• M41: 17,412,444 km (0.11 R)
• M42: 18,966,317 km (0.105 R)
• M43: 19,864,054 km (0.096 R)
• M44: 20,564,023 km (0.104 R)
• M45: 22,712,398 km (0.05 R)
• M46: 23,223,873 km (0.119 R)
• M47: 23,961,091 km (0.088 R)
• M48: 24,035,291 km (0.12 R)
• M49: 25,006,331 km (0.114 R)
• M50: 25,081,429 km (0.071 R)
• M51: 26,371,711 km (0.102 R)
• M52: 27,917,356 km (0.035 R)
• M53: 29,890,253 km (0.096 R)
• M54: 30,691,948 km (0.07 R)
• M55: 31,338,360 km (0.094 R)
• M56: 33,470,280 km (0.081 R)
• M57: 35,818,218 km (0.056 R)
• M58: 36,243,076 km (0.06 R)
• M59: 38,392,199 km (0.108 R)
• M60: 40,229,261 km (0.065 R)
• M61: 41,469,876 km (0.098 R)
• M62: 42,453,333 km (0.118 R)
• M63: 43,083,289 km (0.116 R)
• M64: 48,889,781 km (0.115 R)
• M65: 49,078,125 km (0.076 R)
• M66: 50,783,840 km (0.087 R)
• M67: 51,644,027 km (0.065 R)
• M68: 52,894,965 km (0.086 R)
• M69: 55,524,746 km (0.118 R)
• M70: 55,623,031 km (0.117 R)
• M71: 55,918,038 km (0.117 R)
• M72: 57,004,119 km (0.061 R)
• M73: 57,997,598 km (0.081 R)
• M74: 58,097,231 km (0.108 R)
• M75: 58,396,576 km (0.089 R)
• M76: 59,197,224 km (0.116 R)
• M77: 59,699,573 km (0.1 R)
• M78: 59,800,253 km (0.079 R)
• M79: 60,102,441 km (0.113 R)
• M80: 60,809,590 km (0.115 R)
• M81: 63,152,442 km (0.118 R)
• M82: 67,192,183 km (0.051 R)
• M83: 67,611,206 km (0.104 R)
• M84: 68,241,313 km (0.118 R)
• M85: 69,507,659 km (0.063 R)
• M86: 69,613,424 km (0.119 R)
• M87: 69,931,320 km (0.097 R)
• M88: 71,314,651 km (0.037 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 356 - 19,571 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit