🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.43 AU - 0.71 AU

Year: 151 Days

Day: 21.6 Hours

Environment

Temp: 261 °C

Axial Tilt: 12 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.07 AU - 1.27 AU

Year: 445 Days

Day: 20.5 Hours

Environment

Temp: 39 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.28 AU - 3.52 AU

Year: 2203 Days

Day: 46.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,085,611 km

• M1: 2,260,274 km (0.069 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.52 AU - 4.92 AU

Year: 3047 Days

Day: 47.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.6

Radius: 8.2

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.5 AU - 6.78 AU

Year: 4708 Days

Day: 5.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 70,085,611 km

• M1: 165,006 km (0.066 R)
• M2: 242,498 km (0.108 R)
• M3: 499,507 km (0.09 R)
• M4: 745,895 km (0.119 R)
• M5: 1,154,297 km (0.104 R)
• M6: 1,497,774 km (0.1 R)
• M7: 1,608,476 km (0.098 R)
• M8: 2,167,224 km (0.079 R)
• M9: 2,293,186 km (0.066 R)
• M10: 2,366,190 km (0.046 R)
• M11: 2,589,988 km (0.087 R)
• M12: 3,118,667 km (0.101 R)
• M13: 3,322,868 km (0.112 R)
• M14: 3,510,464 km (0.095 R)
• M15: 3,616,229 km (0.041 R)
• M16: 3,852,594 km (0.063 R)
• M17: 4,160,766 km (0.094 R)
• M18: 4,684,358 km (0.069 R)
• M19: 4,777,558 km (0.097 R)
• M20: 4,965,752 km (0.104 R)
• M21: 5,374,004 km (0.05 R)
• M22: 5,545,294 km (0.108 R)
• M23: 6,558,071 km (0.112 R)
• M24: 6,662,491 km (0.115 R)
• M25: 7,599,422 km (0.088 R)
• M26: 7,764,279 km (0.12 R)
• M27: 8,153,234 km (0.071 R)
• M28: 8,491,923 km (0.102 R)
• M29: 8,662,913 km (0.093 R)
• M30: 9,241,259 km (0.091 R)
• M31: 9,623,781 km (0.094 R)
• M32: 9,832,021 km (0.113 R)
• M33: 10,252,840 km (0.109 R)
• M34: 10,710,310 km (0.059 R)
• M35: 11,050,047 km (0.098 R)
• M36: 11,268,011 km (0.088 R)
• M37: 11,898,715 km (0.07 R)
• M38: 12,058,187 km (0.107 R)
• M39: 12,122,215 km (0.08 R)
• M40: 12,250,570 km (0.117 R)
• M41: 12,347,060 km (0.116 R)
• M42: 12,508,626 km (0.09 R)
• M43: 12,833,702 km (0.073 R)
• M44: 13,858,896 km (0.038 R)
• M45: 13,926,066 km (0.078 R)
• M46: 14,262,811 km (0.077 R)
• M47: 14,738,981 km (0.074 R)
• M48: 15,463,034 km (0.064 R)
• M49: 15,811,897 km (0.116 R)
• M50: 16,163,302 km (0.075 R)
• M51: 16,481,796 km (0.1 R)
• M52: 16,802,384 km (0.082 R)
• M53: 17,269,129 km (0.085 R)
• M54: 17,449,844 km (0.083 R)
• M55: 18,436,142 km (0.093 R)
• M56: 18,509,894 km (0.081 R)
• M57: 18,583,795 km (0.061 R)
• M58: 19,365,444 km (0.119 R)
• M59: 19,515,491 km (0.077 R)
• M60: 19,703,685 km (0.111 R)
• M61: 19,816,931 km (0.12 R)
• M62: 19,892,478 km (0.106 R)
• M63: 22,008,390 km (0.091 R)
• M64: 22,440,129 km (0.098 R)
• M65: 22,755,781 km (0.112 R)
• M66: 23,033,285 km (0.084 R)
• M67: 23,391,721 km (0.064 R)
• M68: 23,631,676 km (0.104 R)
• M69: 24,843,718 km (0.09 R)
• M70: 25,334,100 km (0.047 R)
• M71: 25,539,498 km (0.062 R)
• M72: 25,827,773 km (0.115 R)
• M73: 27,496,238 km (0.08 R)
• M74: 27,918,703 km (0.097 R)
• M75: 28,003,525 km (0.067 R)
• M76: 28,130,832 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.5

Radius: 12.3

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 7.03 AU - 9.29 AU

Year: 8192 Days

Day: 5.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 70,085,611 km

• M1: 163,361 km (0.109 R)
• M2: 286,480 km (0.109 R)
• M3: 387,309 km (0.105 R)
• M4: 468,241 km (0.12 R)
• M5: 695,331 km (0.056 R)
• M6: 1,351,318 km (0.11 R)
• M7: 1,486,255 km (0.1 R)
• M8: 1,565,392 km (0.081 R)
• M9: 2,319,964 km (0.075 R)
• M10: 2,412,714 km (0.057 R)
• M11: 3,047,009 km (0.088 R)
• M12: 3,123,604 km (0.101 R)
• M13: 3,596,183 km (0.11 R)
• M14: 3,704,342 km (0.092 R)
• M15: 3,813,699 km (0.095 R)
• M16: 4,261,595 km (0.109 R)
• M17: 4,608,662 km (0.114 R)
• M18: 4,875,095 km (0.066 R)
• M19: 5,085,879 km (0.114 R)
• M20: 5,207,651 km (0.098 R)
• M21: 5,299,654 km (0.1 R)
• M22: 5,641,635 km (0.069 R)
• M23: 6,087,437 km (0.1 R)
• M24: 6,249,451 km (0.111 R)
• M25: 6,744,022 km (0.119 R)
• M26: 7,080,766 km (0.118 R)
• M27: 7,492,310 km (0.07 R)
• M28: 7,806,017 km (0.09 R)
• M29: 8,482,648 km (0.117 R)
• M30: 8,700,313 km (0.093 R)
• M31: 8,846,470 km (0.09 R)
• M32: 9,968,155 km (0.11 R)
• M33: 10,121,044 km (0.119 R)
• M34: 10,197,937 km (0.115 R)
• M35: 10,274,831 km (0.062 R)
• M36: 10,545,752 km (0.094 R)
• M37: 11,332,936 km (0.114 R)
• M38: 11,532,649 km (0.088 R)
• M39: 11,612,834 km (0.104 R)
• M40: 11,773,951 km (0.086 R)
• M41: 12,549,017 km (0.028 R)
• M42: 12,631,446 km (0.087 R)
• M43: 14,019,564 km (0.114 R)
• M44: 14,105,284 km (0.046 R)
• M45: 14,797,025 km (0.11 R)
• M46: 15,323,160 km (0.102 R)
• M47: 15,721,839 km (0.107 R)
• M48: 16,710,531 km (0.101 R)
• M49: 17,120,878 km (0.107 R)
• M50: 17,212,581 km (0.057 R)
• M51: 17,350,361 km (0.029 R)
• M52: 18,795,177 km (0.119 R)
• M53: 19,221,980 km (0.086 R)
• M54: 19,699,945 km (0.119 R)
• M55: 20,862,769 km (0.101 R)
• M56: 21,502,001 km (0.101 R)
• M57: 21,650,402 km (0.067 R)
• M58: 22,951,156 km (0.092 R)
• M59: 23,713,058 km (0.101 R)
• M60: 23,866,395 km (0.114 R)
• M61: 24,431,576 km (0.08 R)
• M62: 25,209,485 km (0.051 R)
• M63: 25,470,533 km (0.082 R)
• M64: 26,736,281 km (0.064 R)
• M65: 27,376,710 km (0.082 R)
• M66: 27,752,799 km (0.118 R)
• M67: 28,184,538 km (0.109 R)
• M68: 28,347,151 km (0.12 R)
• M69: 28,618,671 km (0.071 R)
• M70: 29,989,137 km (0.102 R)
• M71: 31,101,098 km (0.042 R)
• M72: 31,493,344 km (0.047 R)
• M73: 31,605,841 km (0.093 R)
• M74: 33,307,816 km (0.062 R)
• M75: 35,974,847 km (0.06 R)
• M76: 36,268,807 km (0.066 R)
• M77: 36,445,632 km (0.077 R)
• M78: 36,977,751 km (0.102 R)
• M79: 37,096,382 km (0.103 R)
• M80: 38,830,222 km (0.042 R)
• M81: 39,919,743 km (0.104 R)

Asteroid Belt

Center: 8.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.1

Radius: 10.8

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 9.2 AU - 10.18 AU

Year: 10601 Days

Day: 6.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 70,085,611 km

• M1: 162,912 km (0.118 R)
• M2: 276,457 km (0.097 R)
• M3: 371,302 km (0.117 R)
• M4: 517,609 km (0.113 R)
• M5: 675,135 km (0.089 R)
• M6: 760,556 km (0.095 R)
• M7: 1,077,404 km (0.089 R)
• M8: 1,153,549 km (0.044 R)
• M9: 1,338,602 km (0.114 R)
• M10: 1,605,784 km (0.101 R)
• M11: 1,920,986 km (0.051 R)
• M12: 2,142,242 km (0.114 R)
• M13: 2,455,799 km (0.072 R)
• M14: 2,766,663 km (0.057 R)
• M15: 3,369,243 km (0.108 R)
• M16: 3,464,088 km (0.113 R)
• M17: 3,617,875 km (0.054 R)
• M18: 3,754,159 km (0.098 R)
• M19: 3,852,594 km (0.047 R)
• M20: 3,932,030 km (0.104 R)
• M21: 4,214,172 km (0.076 R)
• M22: 4,565,877 km (0.055 R)
• M23: 4,650,100 km (0.093 R)
• M24: 4,862,679 km (0.087 R)
• M25: 5,452,842 km (0.029 R)
• M26: 5,654,650 km (0.112 R)
• M27: 5,790,634 km (0.082 R)
• M28: 6,112,120 km (0.107 R)
• M29: 6,628,981 km (0.098 R)
• M30: 6,700,489 km (0.089 R)
• M31: 7,579,675 km (0.099 R)
• M32: 7,931,380 km (0.092 R)
• M33: 8,237,158 km (0.099 R)
• M34: 8,546,826 km (0.105 R)
• M35: 9,284,193 km (0.06 R)
• M36: 9,471,789 km (0.102 R)
• M37: 9,905,174 km (0.106 R)
• M38: 10,069,433 km (0.071 R)
• M39: 10,400,493 km (0.073 R)
• M40: 10,595,419 km (0.078 R)
• M41: 10,707,168 km (0.091 R)
• M42: 10,847,641 km (0.07 R)
• M43: 10,988,712 km (0.061 R)
• M44: 12,197,313 km (0.038 R)
• M45: 12,432,181 km (0.091 R)
• M46: 12,876,936 km (0.117 R)
• M47: 14,396,551 km (0.068 R)
• M48: 14,832,180 km (0.105 R)
• M49: 15,209,017 km (0.051 R)
• M50: 15,557,281 km (0.108 R)
• M51: 15,940,252 km (0.045 R)
• M52: 16,197,111 km (0.117 R)
• M53: 16,682,706 km (0.103 R)
• M54: 16,976,366 km (0.069 R)
• M55: 17,337,645 km (0.093 R)
• M56: 17,635,195 km (0.079 R)
• M57: 18,268,593 km (0.103 R)
• M58: 18,571,379 km (0.03 R)
• M59: 18,740,275 km (0.088 R)
• M60: 19,113,671 km (0.105 R)
• M61: 19,729,865 km (0.112 R)
• M62: 19,902,202 km (0.118 R)
• M63: 20,109,694 km (0.113 R)
• M64: 20,387,497 km (0.083 R)
• M65: 20,596,635 km (0.093 R)
• M66: 20,841,527 km (0.117 R)
• M67: 20,981,849 km (0.116 R)
• M68: 21,866,422 km (0.099 R)
• M69: 22,618,899 km (0.115 R)
• M70: 22,907,772 km (0.034 R)
• M71: 23,598,765 km (0.086 R)
• M72: 23,745,072 km (0.086 R)
• M73: 23,818,375 km (0.1 R)
• M74: 24,333,440 km (0.088 R)
• M75: 24,407,341 km (0.079 R)
• M76: 24,518,343 km (0.053 R)
• M77: 24,963,995 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 756.5

Radius: 4

Gravity: 47.28 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 11.41 AU - 17.89 AU

Year: 19708 Days

Day: 24.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 70,085,611 km

• M1: 165,156 km (0.097 R)
• M2: 972,685 km (0.098 R)
• M3: 1,026,391 km (0.091 R)
• M4: 1,648,419 km (0.032 R)
• M5: 1,843,943 km (0.071 R)
• M6: 2,046,948 km (0.083 R)
• M7: 2,151,217 km (0.084 R)
• M8: 2,812,141 km (0.096 R)
• M9: 3,085,007 km (0.099 R)
• M10: 3,204,536 km (0.109 R)
• M11: 3,244,778 km (0.12 R)
• M12: 3,489,370 km (0.087 R)
• M13: 3,824,918 km (0.075 R)
• M14: 3,953,273 km (0.08 R)
• M15: 4,571,262 km (0.079 R)
• M16: 4,753,323 km (0.095 R)
• M17: 4,845,325 km (0.06 R)
• M18: 6,242,869 km (0.062 R)
• M19: 6,546,552 km (0.12 R)
• M20: 7,011,203 km (0.114 R)
• M21: 7,432,920 km (0.119 R)
• M22: 7,539,733 km (0.064 R)
• M23: 9,372,905 km (0.065 R)
• M24: 9,430,500 km (0.074 R)
• M25: 9,720,271 km (0.066 R)
• M26: 10,727,364 km (0.093 R)
• M27: 11,705,136 km (0.112 R)
• M28: 12,204,643 km (0.112 R)
• M29: 12,393,735 km (0.062 R)
• M30: 12,520,295 km (0.088 R)
• M31: 13,613,556 km (0.088 R)
• M32: 13,678,930 km (0.09 R)
• M33: 14,470,153 km (0.034 R)
• M34: 14,938,544 km (0.115 R)
• M35: 16,096,581 km (0.094 R)
• M36: 17,566,530 km (0.1 R)
• M37: 18,932,957 km (0.097 R)
• M38: 19,005,811 km (0.066 R)
• M39: 20,109,843 km (0.04 R)
• M40: 22,302,649 km (0.068 R)
• M41: 22,456,585 km (0.039 R)
• M42: 22,843,146 km (0.05 R)
• M43: 25,368,508 km (0.111 R)
• M44: 26,256,969 km (0.083 R)
• M45: 26,338,201 km (0.092 R)
• M46: 27,402,141 km (0.11 R)
• M47: 28,146,989 km (0.096 R)
• M48: 28,313,491 km (0.062 R)
• M49: 28,982,343 km (0.117 R)
• M50: 30,250,634 km (0.106 R)
• M51: 32,143,197 km (0.072 R)
• M52: 32,230,113 km (0.056 R)
• M53: 32,404,245 km (0.117 R)
• M54: 34,963,715 km (0.115 R)
• M55: 37,678,767 km (0.08 R)
• M56: 39,433,101 km (0.055 R)
• M57: 40,742,681 km (0.116 R)
• M58: 43,404,326 km (0.1 R)
• M59: 43,789,092 km (0.101 R)
• M60: 45,047,509 km (0.106 R)
• M61: 45,339,674 km (0.118 R)
• M62: 45,729,975 km (0.104 R)
• M63: 46,121,622 km (0.112 R)
• M64: 47,006,643 km (0.051 R)
• M65: 47,500,765 km (0.095 R)
• M66: 49,896,275 km (0.097 R)
• M67: 50,097,634 km (0.104 R)
• M68: 50,703,506 km (0.109 R)
• M69: 51,413,347 km (0.031 R)
• M70: 53,253,850 km (0.093 R)
• M71: 53,459,547 km (0.112 R)
• M72: 54,700,013 km (0.102 R)
• M73: 55,741,064 km (0.049 R)
• M74: 56,473,495 km (0.065 R)
• M75: 56,893,566 km (0.099 R)
• M76: 57,314,684 km (0.093 R)
• M77: 58,265,827 km (0.095 R)
• M78: 59,862,635 km (0.093 R)
• M79: 61,258,234 km (0.067 R)
• M80: 62,230,620 km (0.109 R)
• M81: 62,555,846 km (0.09 R)
• M82: 62,990,427 km (0.097 R)
• M83: 63,208,092 km (0.088 R)
• M84: 65,508,608 km (0.109 R)
• M85: 65,729,116 km (0.09 R)
• M86: 67,724,901 km (0.071 R)
• M87: 68,954,296 km (0.108 R)
• M88: 69,290,891 km (0.095 R)
• M89: 69,515,587 km (0.114 R)
• M90: 69,740,583 km (0.109 R)
• M91: 70,529,711 km (0.114 R)
• M92: 71,548,622 km (0.084 R)
• M93: 72,458,477 km (0.063 R)
• M94: 73,830,439 km (0.08 R)
• M95: 74,289,704 km (0.117 R)
• M96: 74,865,058 km (0.109 R)
• M97: 75,210,928 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 206

Radius: 6.2

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 16.8 AU - 23.88 AU

Year: 32241 Days

Day: 15.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 70,085,611 km

• M1: 535,560 km (0.062 R)
• M2: 745,446 km (0.065 R)
• M3: 1,842,747 km (0.11 R)
• M4: 1,935,946 km (0.089 R)
• M5: 2,030,641 km (0.056 R)
• M6: 2,192,058 km (0.06 R)
• M7: 2,257,881 km (0.081 R)
• M8: 3,744,435 km (0.074 R)
• M9: 4,641,872 km (0.115 R)
• M10: 4,897,834 km (0.077 R)
• M11: 5,334,660 km (0.107 R)
• M12: 5,783,902 km (0.086 R)
• M13: 5,829,380 km (0.071 R)
• M14: 7,499,192 km (0.036 R)
• M15: 7,698,755 km (0.099 R)
• M16: 8,052,554 km (0.057 R)
• M17: 10,228,306 km (0.093 R)
• M18: 10,784,959 km (0.114 R)
• M19: 13,651,404 km (0.113 R)
• M20: 13,834,213 km (0.082 R)
• M21: 14,511,143 km (0.064 R)
• M22: 15,388,385 km (0.101 R)
• M23: 15,897,317 km (0.116 R)
• M24: 16,282,681 km (0.114 R)
• M25: 16,997,011 km (0.07 R)
• M26: 17,522,997 km (0.081 R)
• M27: 20,440,305 km (0.069 R)
• M28: 22,995,885 km (0.101 R)
• M29: 23,650,376 km (0.051 R)
• M30: 23,796,533 km (0.116 R)
• M31: 25,275,757 km (0.066 R)
• M32: 25,650,201 km (0.063 R)
• M33: 25,951,042 km (0.054 R)
• M34: 28,788,913 km (0.059 R)
• M35: 30,761,212 km (0.119 R)
• M36: 30,920,982 km (0.031 R)
• M37: 31,965,624 km (0.047 R)
• M38: 32,208,272 km (0.081 R)
• M39: 33,512,915 km (0.114 R)
• M40: 34,171,744 km (0.089 R)
• M41: 34,502,804 km (0.077 R)
• M42: 34,834,911 km (0.112 R)
• M43: 35,837,516 km (0.106 R)
• M44: 36,005,515 km (0.118 R)
• M45: 36,849,546 km (0.068 R)
• M46: 41,430,382 km (0.062 R)
• M47: 42,937,282 km (0.049 R)
• M48: 43,473,440 km (0.076 R)
• M49: 44,461,983 km (0.034 R)
• M50: 46,186,996 km (0.088 R)
• M51: 47,011,729 km (0.03 R)
• M52: 48,861,956 km (0.045 R)
• M53: 49,141,554 km (0.085 R)
• M54: 50,830,065 km (0.066 R)
• M55: 52,537,575 km (0.065 R)
• M56: 53,015,092 km (0.096 R)
• M57: 56,789,895 km (0.076 R)
• M58: 58,957,119 km (0.065 R)
• M59: 59,453,335 km (0.119 R)
• M60: 59,652,301 km (0.076 R)
• M61: 60,350,175 km (0.058 R)
• M62: 61,251,502 km (0.098 R)
• M63: 62,157,317 km (0.098 R)
• M64: 63,270,475 km (0.11 R)
• M65: 64,186,014 km (0.088 R)
• M66: 65,003,566 km (0.04 R)
• M67: 65,516,238 km (0.094 R)

Kuiper Belt

Range: 31.2 - 46.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 14,161 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit