🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.68 AU - 0.78 AU

Year: 239 Days

Day: 40.8 Hours

Environment

Temp: 116 °C

Axial Tilt: 32.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.32 AU - 1.46 AU

Year: 627 Days

Day: 41.8 Hours

Environment

Temp: -41 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.52 AU - 1.72 AU

Year: 789 Days

Day: 39.9 Hours

Environment

Temp: -68 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,675,600 km

• M1: 75,846 km (0.05 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.29 AU - 2.67 AU

Year: 1495 Days

Day: 14 Hours

Environment

Temp: -106 °C

Axial Tilt: 41.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 82,675,600 km

• M1: 828,024 km (0.052 R)
• M2: 941,719 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.87 AU - 3.27 AU

Year: 2060 Days

Day: 20.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.4

Radius: 9.6

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.37 AU - 4.75 AU

Year: 3728 Days

Day: 7.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 82,675,600 km

• M1: 139,724 km (0.09 R)
• M2: 202,556 km (0.071 R)
• M3: 354,397 km (0.081 R)
• M4: 505,192 km (0.079 R)
• M5: 608,714 km (0.037 R)
• M6: 689,197 km (0.115 R)
• M7: 752,028 km (0.101 R)
• M8: 817,104 km (0.093 R)
• M9: 965,056 km (0.111 R)
• M10: 1,134,700 km (0.094 R)
• M11: 1,314,367 km (0.078 R)
• M12: 1,462,319 km (0.12 R)
• M13: 1,545,346 km (0.094 R)
• M14: 1,701,825 km (0.07 R)
• M15: 1,789,490 km (0.081 R)
• M16: 1,863,690 km (0.06 R)
• M17: 1,954,197 km (0.09 R)
• M18: 2,108,283 km (0.082 R)
• M19: 2,298,571 km (0.077 R)
• M20: 2,544,510 km (0.106 R)
• M21: 2,781,922 km (0.064 R)
• M22: 3,480,694 km (0.107 R)
• M23: 3,574,192 km (0.1 R)
• M24: 3,744,584 km (0.111 R)
• M25: 4,014,908 km (0.105 R)
• M26: 4,677,327 km (0.08 R)
• M27: 4,822,287 km (0.076 R)
• M28: 4,947,650 km (0.084 R)
• M29: 5,287,387 km (0.12 R)
• M30: 5,503,556 km (0.088 R)
• M31: 5,569,080 km (0.118 R)
• M32: 5,678,735 km (0.111 R)
• M33: 5,900,140 km (0.056 R)
• M34: 6,305,999 km (0.118 R)
• M35: 6,397,403 km (0.118 R)
• M36: 6,767,508 km (0.105 R)
• M37: 6,908,130 km (0.06 R)
• M38: 7,407,937 km (0.027 R)
• M39: 7,870,344 km (0.089 R)
• M40: 8,241,945 km (0.044 R)
• M41: 9,338,797 km (0.119 R)
• M42: 9,864,484 km (0.063 R)
• M43: 9,970,848 km (0.036 R)
• M44: 11,723,088 km (0.097 R)
• M45: 11,864,009 km (0.108 R)
• M46: 13,127,812 km (0.063 R)
• M47: 13,303,439 km (0.059 R)
• M48: 13,509,436 km (0.12 R)
• M49: 13,597,998 km (0.072 R)
• M50: 14,013,880 km (0.098 R)
• M51: 14,163,478 km (0.113 R)
• M52: 14,373,812 km (0.118 R)
• M53: 14,554,826 km (0.116 R)
• M54: 14,706,368 km (0.056 R)
• M55: 15,564,162 km (0.084 R)
• M56: 15,781,229 km (0.094 R)
• M57: 15,936,960 km (0.103 R)
• M58: 16,092,991 km (0.086 R)
• M59: 16,913,236 km (0.108 R)
• M60: 17,136,286 km (0.055 R)
• M61: 17,617,692 km (0.064 R)
• M62: 18,299,260 km (0.039 R)
• M63: 18,857,260 km (0.108 R)
• M64: 18,989,355 km (0.081 R)
• M65: 19,121,749 km (0.068 R)
• M66: 19,420,796 km (0.092 R)
• M67: 19,621,107 km (0.055 R)
• M68: 19,687,977 km (0.094 R)
• M69: 19,788,507 km (0.1 R)
• M70: 19,990,015 km (0.118 R)
• M71: 20,225,931 km (0.105 R)
• M72: 20,361,168 km (0.108 R)
• M73: 20,802,781 km (0.059 R)
• M74: 21,453,980 km (0.089 R)
• M75: 22,111,762 km (0.06 R)
• M76: 23,234,644 km (0.094 R)
• M77: 23,838,720 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.7

Radius: 13.4

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 8.17 AU - 13.47 AU

Year: 13627 Days

Day: 5.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 82,675,600 km

• M1: 187,895 km (0.091 R)
• M2: 337,194 km (0.115 R)
• M3: 425,606 km (0.113 R)
• M4: 688,150 km (0.115 R)
• M5: 1,021,305 km (0.116 R)
• M6: 1,165,667 km (0.099 R)
• M7: 1,775,128 km (0.054 R)
• M8: 2,495,891 km (0.11 R)
• M9: 2,628,135 km (0.109 R)
• M10: 2,717,745 km (0.069 R)
• M11: 2,876,917 km (0.033 R)
• M12: 3,520,038 km (0.118 R)
• M13: 3,619,221 km (0.119 R)
• M14: 3,744,435 km (0.116 R)
• M15: 3,896,576 km (0.118 R)
• M16: 4,312,757 km (0.081 R)
• M17: 5,530,184 km (0.074 R)
• M18: 6,146,977 km (0.068 R)
• M19: 6,418,048 km (0.088 R)
• M20: 6,539,821 km (0.077 R)
• M21: 6,909,926 km (0.058 R)
• M22: 7,128,937 km (0.097 R)
• M23: 7,382,057 km (0.087 R)
• M24: 7,477,799 km (0.085 R)
• M25: 8,457,665 km (0.103 R)
• M26: 8,591,406 km (0.088 R)
• M27: 9,167,507 km (0.036 R)
• M28: 9,547,187 km (0.111 R)
• M29: 9,861,492 km (0.053 R)
• M30: 10,002,413 km (0.077 R)
• M31: 10,393,162 km (0.086 R)
• M32: 10,608,434 km (0.057 R)
• M33: 10,716,743 km (0.116 R)
• M34: 10,861,553 km (0.09 R)
• M35: 11,043,464 km (0.118 R)
• M36: 11,189,771 km (0.118 R)
• M37: 11,558,530 km (0.111 R)
• M38: 12,841,780 km (0.109 R)
• M39: 13,266,489 km (0.119 R)
• M40: 13,539,355 km (0.1 R)
• M41: 15,255,392 km (0.12 R)
• M42: 15,828,951 km (0.094 R)
• M43: 16,118,273 km (0.109 R)
• M44: 17,591,513 km (0.091 R)
• M45: 18,063,344 km (0.076 R)
• M46: 18,279,364 km (0.052 R)
• M47: 18,626,431 km (0.118 R)
• M48: 19,063,556 km (0.102 R)
• M49: 19,151,370 km (0.071 R)
• M50: 19,858,818 km (0.05 R)
• M51: 20,305,368 km (0.069 R)
• M52: 20,619,972 km (0.1 R)
• M53: 20,981,401 km (0.025 R)
• M54: 21,481,805 km (0.108 R)
• M55: 21,618,987 km (0.104 R)
• M56: 22,124,478 km (0.026 R)
• M57: 22,216,780 km (0.109 R)
• M58: 22,587,334 km (0.069 R)
• M59: 23,147,129 km (0.085 R)
• M60: 23,617,016 km (0.08 R)
• M61: 23,900,504 km (0.072 R)
• M62: 24,901,613 km (0.102 R)
• M63: 25,238,358 km (0.099 R)
• M64: 25,673,538 km (0.118 R)
• M65: 26,208,799 km (0.105 R)
• M66: 27,240,875 km (0.081 R)
• M67: 27,439,092 km (0.105 R)
• M68: 27,687,424 km (0.105 R)
• M69: 28,236,299 km (0.091 R)
• M70: 28,436,760 km (0.101 R)
• M71: 29,598,836 km (0.12 R)
• M72: 30,159,978 km (0.108 R)
• M73: 30,467,701 km (0.109 R)
• M74: 31,137,750 km (0.097 R)
• M75: 32,439,999 km (0.092 R)
• M76: 34,560,549 km (0.118 R)
• M77: 35,259,321 km (0.071 R)
• M78: 35,529,345 km (0.108 R)
• M79: 35,854,271 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.9

Radius: 5.2

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 9.18 AU - 14.44 AU

Year: 15540 Days

Day: 22.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 82,675,600 km

• M1: 139,126 km (0.086 R)
• M2: 177,423 km (0.047 R)
• M3: 220,657 km (0.118 R)
• M4: 254,167 km (0.057 R)
• M5: 442,959 km (0.111 R)
• M6: 640,428 km (0.056 R)
• M7: 775,665 km (0.057 R)
• M8: 1,073,514 km (0.076 R)
• M9: 1,471,145 km (0.079 R)
• M10: 1,636,601 km (0.077 R)
• M11: 1,807,890 km (0.078 R)
• M12: 2,436,351 km (0.051 R)
• M13: 3,021,428 km (0.073 R)
• M14: 3,428,783 km (0.098 R)
• M15: 3,483,087 km (0.118 R)
• M16: 4,042,882 km (0.09 R)
• M17: 4,177,521 km (0.103 R)
• M18: 4,313,655 km (0.051 R)
• M19: 4,550,318 km (0.049 R)
• M20: 4,670,296 km (0.04 R)
• M21: 5,160,678 km (0.091 R)
• M22: 5,624,431 km (0.09 R)
• M23: 6,013,685 km (0.081 R)
• M24: 6,123,340 km (0.117 R)
• M25: 6,167,471 km (0.109 R)
• M26: 7,326,257 km (0.092 R)
• M27: 7,490,515 km (0.089 R)
• M28: 7,751,114 km (0.087 R)
• M29: 8,256,755 km (0.061 R)
• M30: 12,082,571 km (0.097 R)
• M31: 12,836,694 km (0.099 R)
• M32: 13,348,020 km (0.119 R)
• M33: 13,721,266 km (0.117 R)
• M34: 14,331,626 km (0.059 R)
• M35: 14,478,381 km (0.064 R)
• M36: 15,458,546 km (0.1 R)
• M37: 15,911,080 km (0.083 R)
• M38: 17,263,594 km (0.071 R)
• M39: 17,450,891 km (0.059 R)
• M40: 17,513,572 km (0.075 R)
• M41: 17,576,104 km (0.074 R)
• M42: 19,880,809 km (0.114 R)
• M43: 20,011,558 km (0.1 R)
• M44: 21,569,769 km (0.106 R)
• M45: 21,704,257 km (0.114 R)
• M46: 22,143,028 km (0.111 R)
• M47: 22,244,605 km (0.072 R)
• M48: 22,482,466 km (0.057 R)
• M49: 22,755,332 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 987.6

Radius: 6.6

Gravity: 22.67 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 11.51 AU - 13.79 AU

Year: 17227 Days

Day: 17.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 82,675,600 km

• M1: 84,523 km (0.115 R)
• M2: 137,630 km (0.05 R)
• M3: 285,732 km (0.057 R)
• M4: 389,403 km (0.104 R)
• M5: 527,033 km (0.068 R)
• M6: 1,491,042 km (0.062 R)
• M7: 1,840,951 km (0.116 R)
• M8: 3,809,959 km (0.082 R)
• M9: 4,507,982 km (0.036 R)
• M10: 4,598,040 km (0.043 R)
• M11: 4,688,547 km (0.1 R)
• M12: 5,919,737 km (0.112 R)
• M13: 7,777,444 km (0.107 R)
• M14: 8,048,665 km (0.084 R)
• M15: 8,103,417 km (0.075 R)
• M16: 8,768,530 km (0.072 R)
• M17: 9,974,139 km (0.034 R)
• M18: 11,846,955 km (0.055 R)
• M19: 12,284,528 km (0.105 R)
• M20: 13,240,160 km (0.073 R)
• M21: 13,498,964 km (0.114 R)
• M22: 13,890,312 km (0.097 R)
• M23: 15,086,796 km (0.113 R)
• M24: 16,177,813 km (0.11 R)
• M25: 16,732,821 km (0.114 R)
• M26: 18,147,418 km (0.113 R)
• M27: 18,507,052 km (0.071 R)
• M28: 18,579,308 km (0.103 R)
• M29: 19,306,503 km (0.104 R)
• M30: 19,453,109 km (0.068 R)
• M31: 21,316,051 km (0.117 R)
• M32: 21,543,440 km (0.113 R)
• M33: 22,384,030 km (0.12 R)
• M34: 24,651,036 km (0.059 R)
• M35: 24,810,059 km (0.101 R)
• M36: 26,013,574 km (0.05 R)
• M37: 26,908,169 km (0.092 R)
• M38: 26,989,999 km (0.042 R)
• M39: 27,235,938 km (0.066 R)
• M40: 27,565,053 km (0.028 R)
• M41: 29,146,452 km (0.118 R)
• M42: 30,075,306 km (0.095 R)
• M43: 32,309,101 km (0.059 R)
• M44: 34,863,185 km (0.101 R)
• M45: 35,579,011 km (0.113 R)
• M46: 35,848,736 km (0.077 R)
• M47: 37,572,552 km (0.076 R)
• M48: 37,755,660 km (0.086 R)
• M49: 38,306,480 km (0.076 R)
• M50: 38,859,992 km (0.025 R)
• M51: 39,788,396 km (0.09 R)
• M52: 41,194,766 km (0.088 R)
• M53: 42,331,410 km (0.075 R)
• M54: 42,999,215 km (0.078 R)
• M55: 43,670,610 km (0.098 R)
• M56: 43,959,334 km (0.101 R)
• M57: 44,152,316 km (0.041 R)
• M58: 49,364,605 km (0.102 R)
• M59: 51,788,090 km (0.048 R)
• M60: 53,219,592 km (0.07 R)
• M61: 53,425,140 km (0.112 R)
• M62: 54,250,022 km (0.038 R)
• M63: 54,871,452 km (0.079 R)
• M64: 55,183,064 km (0.107 R)
• M65: 56,226,061 km (0.103 R)
• M66: 57,170,173 km (0.101 R)
• M67: 58,331,202 km (0.064 R)
• M68: 59,500,160 km (0.091 R)
• M69: 61,106,392 km (0.088 R)
• M70: 61,968,973 km (0.095 R)
• M71: 62,293,451 km (0.104 R)
• M72: 62,510,069 km (0.097 R)
• M73: 62,944,052 km (0.095 R)
• M74: 63,270,325 km (0.038 R)
• M75: 64,580,653 km (0.084 R)
• M76: 65,129,228 km (0.053 R)
• M77: 65,679,449 km (0.119 R)
• M78: 66,010,210 km (0.084 R)
• M79: 66,120,613 km (0.098 R)
• M80: 66,231,017 km (0.102 R)
• M81: 66,673,527 km (0.046 R)
• M82: 67,450,239 km (0.069 R)
• M83: 68,229,943 km (0.061 R)
• M84: 69,348,935 km (0.069 R)
• M85: 69,573,482 km (0.077 R)
• M86: 70,586,858 km (0.078 R)
• M87: 70,925,697 km (0.118 R)
• M88: 71,151,889 km (0.118 R)
• M89: 72,628,121 km (0.11 R)
• M90: 73,084,394 km (0.092 R)
• M91: 74,229,267 km (0.101 R)
• M92: 77,000,866 km (0.074 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772

Radius: 4.2

Gravity: 43.76 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 13.54 AU - 15.64 AU

Year: 21338 Days

Day: 24.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 82,675,600 km

• M1: 321,785 km (0.098 R)
• M2: 547,528 km (0.037 R)
• M3: 1,117,945 km (0.095 R)
• M4: 1,297,014 km (0.115 R)
• M5: 1,453,194 km (0.099 R)
• M6: 1,582,446 km (0.037 R)
• M7: 2,395,511 km (0.063 R)
• M8: 3,190,773 km (0.082 R)
• M9: 3,274,398 km (0.12 R)
• M10: 3,401,257 km (0.106 R)
• M11: 3,572,996 km (0.033 R)
• M12: 3,969,729 km (0.099 R)
• M13: 4,661,470 km (0.095 R)
• M14: 5,045,487 km (0.101 R)
• M15: 5,094,256 km (0.079 R)
• M16: 5,843,592 km (0.12 R)
• M17: 6,573,480 km (0.117 R)
• M18: 6,787,255 km (0.098 R)
• M19: 7,497,845 km (0.118 R)
• M20: 8,346,664 km (0.102 R)
• M21: 9,344,781 km (0.085 R)
• M22: 10,629,078 km (0.105 R)
• M23: 10,754,142 km (0.097 R)
• M24: 12,755,762 km (0.06 R)
• M25: 13,493,130 km (0.109 R)
• M26: 13,832,717 km (0.118 R)
• M27: 14,037,965 km (0.108 R)
• M28: 15,289,950 km (0.11 R)
• M29: 15,502,079 km (0.114 R)
• M30: 16,432,578 km (0.075 R)
• M31: 16,577,239 km (0.052 R)
• M32: 16,722,349 km (0.119 R)
• M33: 16,868,058 km (0.086 R)
• M34: 17,602,284 km (0.109 R)
• M35: 17,676,335 km (0.052 R)
• M36: 18,197,085 km (0.119 R)
• M37: 18,272,034 km (0.113 R)
• M38: 19,483,028 km (0.081 R)
• M39: 20,563,723 km (0.08 R)
• M40: 21,111,401 km (0.115 R)
• M41: 23,430,916 km (0.117 R)
• M42: 24,331,495 km (0.061 R)
• M43: 25,829,718 km (0.105 R)
• M44: 26,505,003 km (0.073 R)
• M45: 26,930,160 km (0.1 R)
• M46: 27,015,431 km (0.051 R)
• M47: 27,786,907 km (0.116 R)
• M48: 28,392,030 km (0.106 R)
• M49: 29,264,036 km (0.044 R)
• M50: 30,944,768 km (0.046 R)
• M51: 31,571,883 km (0.067 R)
• M52: 32,565,811 km (0.092 R)
• M53: 34,029,626 km (0.106 R)
• M54: 35,048,537 km (0.051 R)
• M55: 35,234,786 km (0.078 R)
• M56: 36,642,652 km (0.078 R)
• M57: 36,926,439 km (0.074 R)
• M58: 37,400,964 km (0.027 R)
• M59: 39,029,486 km (0.101 R)
• M60: 39,222,617 km (0.099 R)
• M61: 39,901,043 km (0.067 R)
• M62: 41,564,721 km (0.04 R)
• M63: 42,157,278 km (0.101 R)
• M64: 43,650,863 km (0.064 R)
• M65: 45,465,934 km (0.092 R)
• M66: 45,567,511 km (0.075 R)
• M67: 48,337,914 km (0.075 R)
• M68: 48,649,078 km (0.109 R)
• M69: 49,482,188 km (0.118 R)
• M70: 50,635,438 km (0.113 R)
• M71: 52,541,315 km (0.114 R)
• M72: 52,647,979 km (0.039 R)
• M73: 56,750,850 km (0.069 R)
• M74: 61,853,035 km (0.03 R)
• M75: 63,548,128 km (0.108 R)
• M76: 65,144,038 km (0.115 R)
• M77: 66,177,012 km (0.108 R)
• M78: 67,099,582 km (0.11 R)
• M79: 67,910,402 km (0.103 R)
• M80: 70,127,592 km (0.088 R)
• M81: 70,244,877 km (0.093 R)
• M82: 70,950,381 km (0.117 R)
• M83: 71,894,642 km (0.079 R)
• M84: 72,842,943 km (0.114 R)
• M85: 72,961,873 km (0.048 R)
• M86: 73,199,734 km (0.051 R)
• M87: 74,752,111 km (0.051 R)
• M88: 75,472,425 km (0.103 R)
• M89: 79,229,875 km (0.1 R)
• M90: 82,180,393 km (0.114 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: 212 - 18,330 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit