🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.55 AU - 0.59 AU

Year: 153 Days

Day: 14.6 Hours

Environment

Temp: 175 °C

Axial Tilt: 43.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,147,381 km

• M1: 340,186 km (0.067 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.59 AU - 0.85 AU

Year: 217 Days

Day: 44.8 Hours

Environment

Temp: 122 °C

Axial Tilt: 39.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.8 AU - 1.26 AU

Year: 371 Days

Day: 19.3 Hours

Environment

Temp: 132 °C

Axial Tilt: 2.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,147,381 km

• M1: 691,890 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.26 AU - 1.88 AU

Year: 698 Days

Day: 16.7 Hours

Environment

Temp: -26 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,147,381 km

• M1: 443,258 km (0.103 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.18 AU - 2.64 AU

Year: 1327 Days

Day: 19.4 Hours

Environment

Temp: -85 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.6

Radius: 9.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.5 AU - 6.8 AU

Year: 5411 Days

Day: 12.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 68,147,381 km

• M1: 119,828 km (0.099 R)
• M2: 185,950 km (0.113 R)
• M3: 268,827 km (0.097 R)
• M4: 376,987 km (0.116 R)
• M5: 477,965 km (0.118 R)
• M6: 603,029 km (0.066 R)
• M7: 762,800 km (0.044 R)
• M8: 848,220 km (0.075 R)
• M9: 961,914 km (0.088 R)
• M10: 1,029,233 km (0.081 R)
• M11: 1,214,136 km (0.053 R)
• M12: 1,448,556 km (0.067 R)
• M13: 1,516,922 km (0.036 R)
• M14: 1,606,382 km (0.104 R)
• M15: 1,718,281 km (0.094 R)
• M16: 1,822,401 km (0.068 R)
• M17: 1,917,845 km (0.117 R)
• M18: 2,004,163 km (0.105 R)
• M19: 2,158,398 km (0.111 R)
• M20: 2,225,717 km (0.099 R)
• M21: 2,680,794 km (0.118 R)
• M22: 3,331,993 km (0.097 R)
• M23: 3,397,218 km (0.074 R)
• M24: 3,528,715 km (0.084 R)
• M25: 3,702,398 km (0.101 R)
• M26: 3,906,449 km (0.086 R)
• M27: 4,114,091 km (0.084 R)
• M28: 4,382,320 km (0.096 R)
• M29: 4,453,977 km (0.12 R)
• M30: 4,598,190 km (0.069 R)
• M31: 4,861,931 km (0.098 R)
• M32: 4,950,942 km (0.049 R)
• M33: 5,055,510 km (0.07 R)
• M34: 5,496,525 km (0.094 R)
• M35: 6,205,170 km (0.064 R)
• M36: 6,611,328 km (0.11 R)
• M37: 6,759,729 km (0.106 R)
• M38: 6,942,538 km (0.119 R)
• M39: 7,059,823 km (0.119 R)
• M40: 7,364,254 km (0.06 R)
• M41: 7,690,228 km (0.102 R)
• M42: 7,881,115 km (0.116 R)
• M43: 8,481,302 km (0.113 R)
• M44: 8,968,243 km (0.104 R)
• M45: 9,041,247 km (0.059 R)
• M46: 9,132,651 km (0.104 R)
• M47: 9,538,659 km (0.041 R)
• M48: 9,856,405 km (0.112 R)
• M49: 9,988,351 km (0.101 R)
• M50: 10,177,742 km (0.036 R)
• M51: 10,368,329 km (0.108 R)
• M52: 10,540,965 km (0.12 R)
• M53: 10,656,455 km (0.118 R)
• M54: 10,888,930 km (0.115 R)
• M55: 10,986,318 km (0.07 R)
• M56: 11,418,057 km (0.051 R)
• M57: 11,576,482 km (0.11 R)
• M58: 12,237,555 km (0.092 R)
• M59: 12,379,373 km (0.074 R)
• M60: 12,664,657 km (0.113 R)
• M61: 13,055,257 km (0.031 R)
• M62: 13,262,450 km (0.068 R)
• M63: 13,470,690 km (0.064 R)
• M64: 14,102,142 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740

Radius: 11.5

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 7.46 AU - 9.86 AU

Year: 9041 Days

Day: 9.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 68,147,381 km

• M1: 144,512 km (0.034 R)
• M2: 346,469 km (0.118 R)
• M3: 537,655 km (0.025 R)
• M4: 686,654 km (0.062 R)
• M5: 783,294 km (0.103 R)
• M6: 902,674 km (0.063 R)
• M7: 991,983 km (0.062 R)
• M8: 1,065,885 km (0.083 R)
• M9: 1,339,799 km (0.038 R)
• M10: 1,861,297 km (0.074 R)
• M11: 2,120,550 km (0.031 R)
• M12: 2,193,404 km (0.099 R)
• M13: 2,442,185 km (0.093 R)
• M14: 2,544,361 km (0.116 R)
• M15: 2,648,032 km (0.101 R)
• M16: 2,779,678 km (0.116 R)
• M17: 3,271,556 km (0.086 R)
• M18: 4,060,236 km (0.098 R)
• M19: 4,554,657 km (0.12 R)
• M20: 5,499,367 km (0.096 R)
• M21: 6,326,045 km (0.097 R)
• M22: 6,538,923 km (0.079 R)
• M23: 6,898,855 km (0.056 R)
• M24: 8,912,592 km (0.059 R)
• M25: 8,991,879 km (0.1 R)
• M26: 9,271,627 km (0.108 R)
• M27: 9,880,491 km (0.114 R)
• M28: 10,754,591 km (0.045 R)
• M29: 11,394,271 km (0.101 R)
• M30: 12,046,219 km (0.108 R)
• M31: 12,178,015 km (0.1 R)
• M32: 12,487,533 km (0.111 R)
• M33: 13,024,290 km (0.109 R)
• M34: 13,751,485 km (0.089 R)
• M35: 13,843,338 km (0.115 R)
• M36: 14,632,317 km (0.112 R)
• M37: 14,914,309 km (0.081 R)
• M38: 15,055,979 km (0.064 R)
• M39: 15,579,122 km (0.103 R)
• M40: 15,674,865 km (0.108 R)
• M41: 15,915,269 km (0.051 R)
• M42: 17,036,355 km (0.08 R)
• M43: 17,631,306 km (0.077 R)
• M44: 17,981,664 km (0.071 R)
• M45: 18,384,830 km (0.096 R)
• M46: 18,638,249 km (0.111 R)
• M47: 19,715,503 km (0.069 R)
• M48: 20,131,086 km (0.099 R)
• M49: 20,392,434 km (0.068 R)
• M50: 20,760,145 km (0.104 R)
• M51: 21,236,166 km (0.074 R)
• M52: 21,502,151 km (0.117 R)
• M53: 21,769,183 km (0.091 R)
• M54: 22,198,828 km (0.114 R)
• M55: 22,522,857 km (0.075 R)
• M56: 22,631,315 km (0.06 R)
• M57: 23,066,496 km (0.037 R)
• M58: 23,779,778 km (0.048 R)
• M59: 24,111,287 km (0.118 R)
• M60: 25,115,388 km (0.064 R)
• M61: 25,849,016 km (0.073 R)
• M62: 26,189,950 km (0.097 R)
• M63: 26,418,086 km (0.11 R)
• M64: 26,704,267 km (0.103 R)
• M65: 26,991,345 km (0.082 R)
• M66: 27,453,004 km (0.094 R)
• M67: 27,568,793 km (0.117 R)
• M68: 28,208,623 km (0.106 R)
• M69: 28,559,580 km (0.12 R)
• M70: 30,396,492 km (0.077 R)
• M71: 31,419,891 km (0.059 R)
• M72: 31,966,223 km (0.045 R)
• M73: 32,454,660 km (0.086 R)
• M74: 33,006,975 km (0.079 R)
• M75: 35,121,391 km (0.082 R)
• M76: 35,247,203 km (0.098 R)
• M77: 36,131,626 km (0.057 R)
• M78: 38,763,501 km (0.102 R)
• M79: 40,135,314 km (0.119 R)
• M80: 41,456,562 km (0.086 R)
• M81: 42,657,982 km (0.052 R)
• M82: 43,870,623 km (0.066 R)
• M83: 44,277,379 km (0.072 R)
• M84: 45,710,976 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.8

Radius: 3.2

Gravity: 66.78 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 13.99 AU - 14.53 AU

Year: 19104 Days

Day: 15.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 68,147,381 km

• M1: 161,865 km (0.074 R)
• M2: 720,164 km (0.079 R)
• M3: 815,009 km (0.12 R)
• M4: 888,761 km (0.112 R)
• M5: 1,233,285 km (0.099 R)
• M6: 1,614,909 km (0.106 R)
• M7: 1,739,075 km (0.06 R)
• M8: 2,096,764 km (0.047 R)
• M9: 2,266,707 km (0.068 R)
• M10: 2,765,915 km (0.106 R)
• M11: 2,914,615 km (0.094 R)
• M12: 3,104,006 km (0.08 R)
• M13: 3,455,262 km (0.041 R)
• M14: 3,534,998 km (0.1 R)
• M15: 3,696,264 km (0.059 R)
• M16: 3,818,785 km (0.1 R)
• M17: 4,025,978 km (0.1 R)
• M18: 4,713,380 km (0.116 R)
• M19: 4,846,223 km (0.118 R)
• M20: 6,633,020 km (0.111 R)
• M21: 7,286,314 km (0.111 R)
• M22: 8,330,507 km (0.119 R)
• M23: 8,761,050 km (0.11 R)
• M24: 9,364,976 km (0.107 R)
• M25: 11,137,561 km (0.119 R)
• M26: 11,196,503 km (0.07 R)
• M27: 11,731,016 km (0.081 R)
• M28: 12,517,602 km (0.043 R)
• M29: 12,640,122 km (0.096 R)
• M30: 13,823,890 km (0.052 R)
• M31: 14,783,112 km (0.056 R)
• M32: 14,847,888 km (0.044 R)
• M33: 15,697,604 km (0.107 R)
• M34: 17,580,742 km (0.117 R)
• M35: 17,649,258 km (0.102 R)
• M36: 18,898,549 km (0.068 R)
• M37: 19,109,632 km (0.061 R)
• M38: 19,818,427 km (0.107 R)
• M39: 20,176,115 km (0.077 R)
• M40: 20,391,686 km (0.097 R)
• M41: 20,463,792 km (0.055 R)
• M42: 20,752,815 km (0.103 R)
• M43: 20,897,775 km (0.115 R)
• M44: 21,554,510 km (0.09 R)
• M45: 22,514,928 km (0.103 R)
• M46: 23,489,409 km (0.028 R)
• M47: 24,400,909 km (0.068 R)
• M48: 24,477,503 km (0.06 R)
• M49: 25,401,569 km (0.119 R)
• M50: 28,000,832 km (0.064 R)
• M51: 28,724,287 km (0.11 R)
• M52: 29,780,149 km (0.094 R)
• M53: 30,765,849 km (0.07 R)
• M54: 31,429,017 km (0.088 R)
• M55: 32,516,593 km (0.117 R)
• M56: 33,361,672 km (0.087 R)
• M57: 35,073,221 km (0.106 R)
• M58: 35,765,709 km (0.086 R)
• M59: 35,852,626 km (0.107 R)
• M60: 36,813,044 km (0.117 R)
• M61: 36,988,522 km (0.036 R)
• M62: 38,136,237 km (0.114 R)
• M63: 39,385,230 km (0.048 R)
• M64: 40,466,523 km (0.064 R)
• M65: 41,192,671 km (0.111 R)
• M66: 41,557,391 km (0.106 R)
• M67: 42,750,135 km (0.12 R)
• M68: 43,304,395 km (0.106 R)
• M69: 45,263,080 km (0.103 R)
• M70: 49,072,889 km (0.11 R)
• M71: 49,749,969 km (0.034 R)
• M72: 50,041,236 km (0.116 R)
• M73: 50,625,266 km (0.102 R)
• M74: 50,918,178 km (0.098 R)
• M75: 51,113,703 km (0.108 R)
• M76: 52,884,942 km (0.081 R)
• M77: 52,983,975 km (0.117 R)
• M78: 53,281,226 km (0.117 R)
• M79: 53,977,305 km (0.089 R)
• M80: 54,176,570 km (0.068 R)
• M81: 55,277,760 km (0.106 R)
• M82: 55,982,216 km (0.035 R)
• M83: 56,689,664 km (0.077 R)
• M84: 58,932,436 km (0.08 R)
• M85: 59,858,297 km (0.078 R)
• M86: 62,873,891 km (0.084 R)
• M87: 63,398,830 km (0.078 R)
• M88: 63,503,997 km (0.101 R)
• M89: 63,714,481 km (0.1 R)
• M90: 65,725,824 km (0.1 R)
• M91: 66,365,206 km (0.088 R)
• M92: 67,006,681 km (0.118 R)
• M93: 68,188,205 km (0.117 R)
• M94: 68,835,515 km (0.12 R)
• M95: 70,245,027 km (0.076 R)
• M96: 71,663,962 km (0.113 R)
• M97: 72,212,239 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.3

Radius: 5.9

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 14.01 AU - 14.93 AU

Year: 19527 Days

Day: 20.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 68,147,381 km

• M1: 98,435 km (0.066 R)
• M2: 558,748 km (0.074 R)
• M3: 1,245,552 km (0.117 R)
• M4: 1,383,481 km (0.109 R)
• M5: 1,526,197 km (0.089 R)
• M6: 1,878,052 km (0.071 R)
• M7: 2,108,283 km (0.076 R)
• M8: 2,328,940 km (0.083 R)
• M9: 2,385,188 km (0.062 R)
• M10: 2,556,927 km (0.106 R)
• M11: 2,595,523 km (0.103 R)
• M12: 2,712,808 km (0.079 R)
• M13: 2,811,991 km (0.027 R)
• M14: 4,459,662 km (0.114 R)
• M15: 4,671,343 km (0.094 R)
• M16: 4,982,806 km (0.042 R)
• M17: 5,931,556 km (0.109 R)
• M18: 6,692,261 km (0.04 R)
• M19: 6,907,532 km (0.082 R)
• M20: 7,152,424 km (0.099 R)
• M21: 7,538,985 km (0.079 R)
• M22: 7,678,709 km (0.067 R)
• M23: 8,651,394 km (0.118 R)
• M24: 9,122,329 km (0.033 R)
• M25: 9,421,076 km (0.079 R)
• M26: 9,997,177 km (0.095 R)
• M27: 11,923,100 km (0.079 R)
• M28: 12,282,284 km (0.067 R)
• M29: 13,044,934 km (0.077 R)
• M30: 13,550,426 km (0.054 R)
• M31: 13,618,343 km (0.095 R)
• M32: 13,856,952 km (0.118 R)
• M33: 16,136,823 km (0.076 R)
• M34: 16,897,977 km (0.088 R)
• M35: 18,304,646 km (0.099 R)
• M36: 18,908,124 km (0.074 R)
• M37: 21,862,532 km (0.107 R)
• M38: 23,596,671 km (0.119 R)
• M39: 24,047,259 km (0.114 R)
• M40: 25,625,816 km (0.101 R)
• M41: 26,852,967 km (0.054 R)
• M42: 27,753,397 km (0.093 R)
• M43: 28,055,734 km (0.055 R)
• M44: 28,098,968 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.3

Radius: 3.2

Gravity: 34.5 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 15.09 AU - 17.75 AU

Year: 23605 Days

Day: 24.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 68,147,381 km

• M1: 41,887 km (0.057 R)
• M2: 246,986 km (0.062 R)
• M3: 277,354 km (0.101 R)
• M4: 505,042 km (0.046 R)
• M5: 584,628 km (0.087 R)
• M6: 605,273 km (0.111 R)
• M7: 711,787 km (0.101 R)
• M8: 1,116,748 km (0.102 R)
• M9: 1,438,683 km (0.102 R)
• M10: 1,466,807 km (0.074 R)
• M11: 1,495,081 km (0.091 R)
• M12: 1,552,078 km (0.075 R)
• M13: 1,609,823 km (0.049 R)
• M14: 1,638,994 km (0.079 R)
• M15: 1,668,315 km (0.077 R)
• M16: 2,558,572 km (0.106 R)
• M17: 3,306,113 km (0.104 R)
• M18: 3,722,743 km (0.076 R)
• M19: 4,276,704 km (0.075 R)
• M20: 4,398,626 km (0.073 R)
• M21: 4,771,574 km (0.088 R)
• M22: 5,025,740 km (0.048 R)
• M23: 5,814,570 km (0.039 R)
• M24: 6,735,046 km (0.079 R)
• M25: 7,067,751 km (0.086 R)
• M26: 7,798,687 km (0.058 R)
• M27: 8,604,421 km (0.051 R)
• M28: 9,754,679 km (0.071 R)
• M29: 10,511,494 km (0.117 R)
• M30: 10,897,008 km (0.089 R)
• M31: 11,399,358 km (0.081 R)
• M32: 11,738,347 km (0.112 R)
• M33: 12,368,602 km (0.109 R)
• M34: 13,009,779 km (0.073 R)
• M35: 13,901,233 km (0.083 R)
• M36: 15,120,306 km (0.085 R)
• M37: 15,306,106 km (0.117 R)
• M38: 15,368,189 km (0.102 R)
• M39: 15,617,419 km (0.047 R)
• M40: 16,883,616 km (0.062 R)
• M41: 17,789,281 km (0.065 R)
• M42: 18,050,928 km (0.071 R)
• M43: 19,917,909 km (0.059 R)
• M44: 21,705,604 km (0.065 R)
• M45: 23,400,697 km (0.111 R)
• M46: 23,903,047 km (0.117 R)
• M47: 24,408,987 km (0.097 R)
• M48: 27,065,995 km (0.083 R)
• M49: 27,291,588 km (0.027 R)
• M50: 27,366,986 km (0.113 R)
• M51: 27,442,233 km (0.072 R)
• M52: 27,820,267 km (0.106 R)
• M53: 28,887,648 km (0.05 R)
• M54: 29,968,493 km (0.09 R)
• M55: 30,826,885 km (0.043 R)
• M56: 31,456,243 km (0.112 R)
• M57: 32,647,641 km (0.101 R)
• M58: 33,692,133 km (0.111 R)
• M59: 33,853,849 km (0.037 R)
• M60: 36,558,129 km (0.109 R)
• M61: 38,399,230 km (0.106 R)
• M62: 39,245,954 km (0.106 R)
• M63: 39,671,710 km (0.105 R)
• M64: 41,130,439 km (0.107 R)
• M65: 42,694,036 km (0.03 R)
• M66: 46,237,560 km (0.1 R)
• M67: 47,047,782 km (0.106 R)
• M68: 47,681,180 km (0.072 R)
• M69: 47,862,792 km (0.115 R)
• M70: 48,408,525 km (0.112 R)
• M71: 48,773,543 km (0.059 R)
• M72: 48,864,948 km (0.097 R)
• M73: 49,690,279 km (0.098 R)
• M74: 52,755,091 km (0.067 R)
• M75: 53,413,022 km (0.104 R)
• M76: 53,601,515 km (0.115 R)
• M77: 54,357,733 km (0.117 R)
• M78: 54,737,113 km (0.101 R)
• M79: 55,117,391 km (0.059 R)
• M80: 56,743,370 km (0.103 R)
• M81: 60,729,106 km (0.057 R)
• M82: 60,827,392 km (0.103 R)
• M83: 60,925,827 km (0.064 R)
• M84: 61,517,188 km (0.095 R)
• M85: 61,714,806 km (0.112 R)
• M86: 62,408,043 km (0.086 R)
• M87: 63,702,064 km (0.109 R)
• M88: 63,901,927 km (0.067 R)
• M89: 64,202,170 km (0.119 R)
• M90: 64,302,401 km (0.117 R)
• M91: 64,502,862 km (0.057 R)
• M92: 65,710,266 km (0.114 R)
• M93: 66,013,352 km (0.109 R)
• M94: 66,316,736 km (0.114 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 298 - 15,633 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit