🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.84 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.2

Radius: 14

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.36 AU - 1.98 AU

Year: 1464 Days

Day: 10.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 61,916,514 km

• M1: 188,194 km (0.035 R)
• M2: 275,260 km (0.097 R)
• M3: 439,519 km (0.105 R)
• M4: 530,923 km (0.036 R)
• M5: 630,854 km (0.109 R)
• M6: 805,585 km (0.117 R)
• M7: 968,646 km (0.07 R)
• M8: 1,159,533 km (0.09 R)
• M9: 1,247,796 km (0.096 R)
• M10: 1,355,207 km (0.091 R)
• M11: 1,500,766 km (0.038 R)
• M12: 1,789,639 km (0.108 R)
• M13: 1,893,311 km (0.12 R)
• M14: 2,176,499 km (0.096 R)
• M15: 2,267,305 km (0.082 R)
• M16: 2,359,458 km (0.111 R)
• M17: 2,463,279 km (0.038 R)
• M18: 3,187,931 km (0.051 R)
• M19: 3,303,271 km (0.106 R)
• M20: 3,467,379 km (0.112 R)
• M21: 3,598,278 km (0.054 R)
• M22: 3,718,704 km (0.025 R)
• M23: 3,815,942 km (0.079 R)
• M24: 4,252,020 km (0.049 R)
• M25: 4,430,939 km (0.072 R)
• M26: 4,521,446 km (0.103 R)
• M27: 4,996,419 km (0.063 R)
• M28: 5,104,130 km (0.107 R)
• M29: 5,321,944 km (0.065 R)
• M30: 5,556,963 km (0.102 R)
• M31: 5,866,032 km (0.079 R)
• M32: 6,094,468 km (0.084 R)
• M33: 6,678,498 km (0.111 R)
• M34: 7,052,642 km (0.103 R)
• M35: 7,295,739 km (0.046 R)
• M36: 7,464,485 km (0.085 R)
• M37: 7,665,694 km (0.112 R)
• M38: 7,806,017 km (0.077 R)
• M39: 8,010,218 km (0.109 R)
• M40: 8,248,079 km (0.107 R)
• M41: 8,456,169 km (0.044 R)
• M42: 8,584,973 km (0.072 R)
• M43: 9,008,485 km (0.112 R)
• M44: 9,322,341 km (0.071 R)
• M45: 9,791,330 km (0.11 R)
• M46: 9,892,907 km (0.115 R)
• M47: 10,388,675 km (0.099 R)
• M48: 10,526,903 km (0.092 R)
• M49: 10,875,017 km (0.09 R)
• M50: 11,422,246 km (0.102 R)
• M51: 11,547,011 km (0.12 R)
• M52: 11,654,422 km (0.07 R)
• M53: 11,924,147 km (0.087 R)
• M54: 12,232,468 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779

Radius: 10.5

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.67 AU - 2.25 AU

Year: 1861 Days

Day: 14.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 61,916,514 km

• M1: 140,024 km (0.073 R)
• M2: 284,984 km (0.12 R)
• M3: 489,783 km (0.1 R)
• M4: 649,853 km (0.116 R)
• M5: 769,831 km (0.089 R)
• M6: 978,071 km (0.116 R)
• M7: 1,089,372 km (0.097 R)
• M8: 1,355,806 km (0.1 R)
• M9: 1,621,342 km (0.12 R)
• M10: 1,857,258 km (0.104 R)
• M11: 2,020,918 km (0.091 R)
• M12: 2,287,800 km (0.026 R)
• M13: 2,489,159 km (0.083 R)
• M14: 2,896,065 km (0.067 R)
• M15: 3,155,917 km (0.085 R)
• M16: 3,380,613 km (0.113 R)
• M17: 3,538,139 km (0.09 R)
• M18: 3,683,548 km (0.085 R)
• M19: 3,801,282 km (0.053 R)
• M20: 4,101,375 km (0.057 R)
• M21: 4,192,780 km (0.079 R)
• M22: 4,471,480 km (0.073 R)
• M23: 4,565,727 km (0.096 R)
• M24: 4,708,443 km (0.094 R)
• M25: 5,063,290 km (0.108 R)
• M26: 5,376,847 km (0.103 R)
• M27: 5,696,837 km (0.03 R)
• M28: 5,919,289 km (0.064 R)
• M29: 6,023,109 km (0.095 R)
• M30: 6,162,235 km (0.108 R)
• M31: 6,302,558 km (0.087 R)
• M32: 6,586,196 km (0.071 R)
• M33: 6,711,708 km (0.104 R)
• M34: 6,946,876 km (0.11 R)
• M35: 7,221,538 km (0.086 R)
• M36: 7,313,840 km (0.072 R)
• M37: 7,499,790 km (0.097 R)
• M38: 7,819,481 km (0.112 R)
• M39: 7,990,621 km (0.103 R)
• M40: 8,394,685 km (0.105 R)
• M41: 8,904,065 km (0.092 R)
• M42: 9,062,938 km (0.11 R)
• M43: 9,222,709 km (0.089 R)
• M44: 9,343,135 km (0.104 R)
• M45: 9,727,901 km (0.101 R)
• M46: 9,891,411 km (0.117 R)
• M47: 10,221,424 km (0.116 R)
• M48: 10,575,971 km (0.111 R)
• M49: 10,659,895 km (0.115 R)
• M50: 10,807,549 km (0.096 R)
• M51: 11,254,248 km (0.088 R)
• M52: 11,577,080 km (0.046 R)
• M53: 11,707,081 km (0.101 R)
• M54: 12,342,273 km (0.112 R)
• M55: 12,474,966 km (0.113 R)
• M56: 12,608,258 km (0.039 R)
• M57: 12,675,128 km (0.062 R)
• M58: 12,809,168 km (0.118 R)
• M59: 12,876,338 km (0.091 R)
• M60: 13,101,034 km (0.108 R)
• M61: 13,531,726 km (0.078 R)
• M62: 13,737,423 km (0.069 R)
• M63: 13,852,164 km (0.092 R)
• M64: 14,059,357 km (0.087 R)
• M65: 14,221,372 km (0.09 R)
• M66: 14,640,545 km (0.115 R)
• M67: 15,087,394 km (0.108 R)
• M68: 15,586,602 km (0.107 R)
• M69: 15,826,258 km (0.069 R)
• M70: 15,898,364 km (0.1 R)
• M71: 16,236,455 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.2

Radius: 10.4

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.85 AU - 5.75 AU

Year: 7133 Days

Day: 8 Hours

Environment

Temp: -215 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 61,916,514 km

• M1: 184,155 km (0.066 R)
• M2: 304,132 km (0.099 R)
• M3: 462,856 km (0.111 R)
• M4: 788,530 km (0.099 R)
• M5: 1,199,177 km (0.098 R)
• M6: 1,427,912 km (0.1 R)
• M7: 1,949,709 km (0.069 R)
• M8: 2,197,294 km (0.079 R)
• M9: 2,266,557 km (0.043 R)
• M10: 2,600,011 km (0.094 R)
• M11: 3,582,121 km (0.095 R)
• M12: 3,914,378 km (0.036 R)
• M13: 4,343,724 km (0.095 R)
• M14: 4,728,041 km (0.058 R)
• M15: 4,818,248 km (0.104 R)
• M16: 4,969,940 km (0.092 R)
• M17: 5,185,062 km (0.037 R)
• M18: 6,174,353 km (0.116 R)
• M19: 6,240,176 km (0.095 R)
• M20: 6,439,141 km (0.105 R)
• M21: 6,673,860 km (0.112 R)
• M22: 6,911,422 km (0.075 R)
• M23: 7,889,343 km (0.06 R)
• M24: 8,068,561 km (0.075 R)
• M25: 8,249,126 km (0.094 R)
• M26: 8,798,898 km (0.075 R)
• M27: 9,022,248 km (0.084 R)
• M28: 9,474,332 km (0.073 R)
• M29: 9,933,897 km (0.096 R)
• M30: 10,011,090 km (0.114 R)
• M31: 10,088,581 km (0.053 R)
• M32: 10,715,845 km (0.087 R)
• M33: 10,795,132 km (0.044 R)
• M34: 11,074,282 km (0.113 R)
• M35: 11,477,149 km (0.098 R)
• M36: 11,558,231 km (0.103 R)
• M37: 11,802,973 km (0.098 R)
• M38: 12,090,500 km (0.059 R)
• M39: 12,505,335 km (0.071 R)
• M40: 13,178,675 km (0.111 R)
• M41: 13,391,553 km (0.089 R)
• M42: 13,605,627 km (0.06 R)
• M43: 14,298,116 km (0.058 R)
• M44: 14,736,737 km (0.034 R)
• M45: 15,179,846 km (0.091 R)
• M46: 15,447,775 km (0.079 R)
• M47: 15,582,413 km (0.107 R)
• M48: 16,443,648 km (0.093 R)
• M49: 17,273,917 km (0.043 R)
• M50: 17,600,489 km (0.073 R)
• M51: 18,023,252 km (0.1 R)
• M52: 18,402,034 km (0.082 R)
• M53: 18,783,359 km (0.069 R)
• M54: 20,630,145 km (0.098 R)
• M55: 23,146,979 km (0.065 R)
• M56: 25,599,786 km (0.054 R)
• M57: 26,078,948 km (0.082 R)
• M58: 26,292,723 km (0.1 R)
• M59: 26,560,952 km (0.092 R)
• M60: 27,806,055 km (0.08 R)
• M61: 27,915,262 km (0.077 R)
• M62: 28,024,618 km (0.119 R)
• M63: 28,793,850 km (0.066 R)
• M64: 28,959,605 km (0.118 R)
• M65: 30,016,663 km (0.057 R)
• M66: 30,128,712 km (0.082 R)
• M67: 30,297,010 km (0.056 R)
• M68: 30,860,096 km (0.089 R)
• M69: 30,973,192 km (0.087 R)
• M70: 31,369,925 km (0.077 R)
• M71: 31,483,620 km (0.067 R)
• M72: 31,939,594 km (0.085 R)
• M73: 32,111,183 km (0.069 R)
• M74: 32,800,680 km (0.062 R)
• M75: 33,553,007 km (0.094 R)
• M76: 34,486,797 km (0.1 R)
• M77: 35,725,468 km (0.117 R)
• M78: 36,439,648 km (0.03 R)
• M79: 37,519,894 km (0.054 R)
• M80: 37,761,495 km (0.117 R)
• M81: 38,488,989 km (0.075 R)
• M82: 38,854,606 km (0.081 R)
• M83: 39,037,714 km (0.092 R)
• M84: 40,142,943 km (0.099 R)
• M85: 41,009,563 km (0.096 R)
• M86: 41,632,489 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.5

Radius: 8.2

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 4.86 AU - 4.86 AU

Year: 7267 Days

Day: 10.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 61,916,514 km

• M1: 178,769 km (0.057 R)
• M2: 258,954 km (0.112 R)
• M3: 415,433 km (0.118 R)
• M4: 557,402 km (0.068 R)
• M5: 703,110 km (0.116 R)
• M6: 834,457 km (0.082 R)
• M7: 1,076,805 km (0.105 R)
• M8: 1,229,694 km (0.096 R)
• M9: 1,422,825 km (0.099 R)
• M10: 2,192,955 km (0.109 R)
• M11: 2,368,583 km (0.066 R)
• M12: 2,528,503 km (0.113 R)
• M13: 2,589,390 km (0.107 R)
• M14: 2,775,190 km (0.092 R)
• M15: 2,859,115 km (0.05 R)
• M16: 2,922,694 km (0.103 R)
• M17: 3,116,124 km (0.03 R)
• M18: 4,073,700 km (0.079 R)
• M19: 4,485,692 km (0.116 R)
• M20: 4,559,743 km (0.068 R)
• M21: 4,961,862 km (0.082 R)
• M22: 5,218,871 km (0.071 R)
• M23: 5,375,351 km (0.085 R)
• M24: 5,586,284 km (0.081 R)
• M25: 6,568,693 km (0.115 R)
• M26: 6,936,554 km (0.06 R)
• M27: 7,515,647 km (0.104 R)
• M28: 7,574,439 km (0.102 R)
• M29: 7,900,264 km (0.1 R)
• M30: 8,967,794 km (0.094 R)
• M31: 9,629,765 km (0.104 R)
• M32: 10,079,755 km (0.049 R)
• M33: 10,274,831 km (0.115 R)
• M34: 10,734,694 km (0.114 R)
• M35: 10,834,177 km (0.053 R)
• M36: 11,674,468 km (0.098 R)
• M37: 11,982,191 km (0.113 R)
• M38: 12,500,996 km (0.064 R)
• M39: 12,991,677 km (0.046 R)
• M40: 14,209,703 km (0.087 R)
• M41: 14,501,569 km (0.112 R)
• M42: 15,576,280 km (0.111 R)
• M43: 16,028,365 km (0.096 R)
• M44: 16,830,060 km (0.074 R)
• M45: 17,293,963 km (0.079 R)
• M46: 17,605,575 km (0.119 R)
• M47: 18,037,165 km (0.074 R)
• M48: 18,234,484 km (0.032 R)
• M49: 19,392,821 km (0.113 R)
• M50: 19,676,010 km (0.077 R)
• M51: 19,838,473 km (0.062 R)
• M52: 20,451,675 km (0.111 R)
• M53: 20,698,661 km (0.111 R)
• M54: 21,864,327 km (0.101 R)
• M55: 23,351,180 km (0.117 R)
• M56: 23,480,134 km (0.078 R)
• M57: 23,609,386 km (0.087 R)
• M58: 23,782,022 km (0.08 R)
• M59: 23,911,724 km (0.114 R)
• M60: 24,215,407 km (0.113 R)
• M61: 24,345,857 km (0.082 R)
• M62: 25,398,577 km (0.112 R)
• M63: 26,331,918 km (0.054 R)
• M64: 26,780,263 km (0.086 R)
• M65: 26,870,321 km (0.094 R)
• M66: 27,639,104 km (0.094 R)
• M67: 27,912,270 km (0.097 R)
• M68: 28,461,144 km (0.094 R)
• M69: 28,736,853 km (0.109 R)
• M70: 29,152,287 km (0.08 R)
• M71: 29,616,040 km (0.104 R)
• M72: 29,709,090 km (0.1 R)
• M73: 30,035,512 km (0.105 R)
• M74: 30,175,835 km (0.087 R)
• M75: 30,269,484 km (0.081 R)
• M76: 30,786,195 km (0.105 R)
• M77: 30,880,441 km (0.05 R)
• M78: 31,022,110 km (0.107 R)
• M79: 31,685,577 km (0.107 R)
• M80: 31,876,165 km (0.047 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.3

Radius: 3.7

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.65 AU - 5.93 AU

Year: 9450 Days

Day: 20.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 61,916,514 km

• M1: 66,122 km (0.104 R)
• M2: 139,425 km (0.102 R)
• M3: 726,597 km (0.097 R)
• M4: 826,678 km (0.104 R)
• M5: 955,033 km (0.062 R)
• M6: 1,003,353 km (0.098 R)
• M7: 1,804,749 km (0.113 R)
• M8: 1,955,843 km (0.071 R)
• M9: 2,001,919 km (0.058 R)
• M10: 2,270,297 km (0.09 R)
• M11: 2,449,964 km (0.099 R)
• M12: 2,685,132 km (0.06 R)
• M13: 3,051,497 km (0.09 R)
• M14: 3,810,856 km (0.115 R)
• M15: 4,161,962 km (0.108 R)
• M16: 4,728,190 km (0.11 R)
• M17: 4,894,394 km (0.117 R)
• M18: 5,426,214 km (0.06 R)
• M19: 6,382,892 km (0.118 R)
• M20: 6,798,475 km (0.108 R)
• M21: 7,127,890 km (0.05 R)
• M22: 7,199,098 km (0.036 R)
• M23: 8,698,368 km (0.099 R)
• M24: 8,850,958 km (0.118 R)
• M25: 9,030,027 km (0.1 R)
• M26: 9,943,172 km (0.067 R)
• M27: 9,996,279 km (0.085 R)
• M28: 10,397,351 km (0.119 R)
• M29: 11,687,483 km (0.098 R)
• M30: 13,260,056 km (0.043 R)
• M31: 14,145,376 km (0.093 R)
• M32: 14,504,860 km (0.062 R)
• M33: 14,776,380 km (0.1 R)
• M34: 14,988,809 km (0.117 R)
• M35: 15,141,100 km (0.065 R)
• M36: 16,881,821 km (0.048 R)
• M37: 17,422,766 km (0.095 R)
• M38: 17,904,621 km (0.066 R)
• M39: 18,881,645 km (0.075 R)
• M40: 19,211,059 km (0.103 R)
• M41: 19,708,921 km (0.087 R)
• M42: 19,842,362 km (0.084 R)
• M43: 20,954,772 km (0.1 R)
• M44: 21,295,855 km (0.044 R)
• M45: 21,570,068 km (0.096 R)
• M46: 21,810,921 km (0.105 R)
• M47: 21,914,442 km (0.108 R)
• M48: 23,345,197 km (0.111 R)

Asteroid Belt

Center: 7.63 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.1

Radius: 7.4

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 9.03 AU - 9.89 AU

Year: 19735 Days

Day: 20.9 Hours

Environment

Temp: -243 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 61,916,514 km

• M1: 173,234 km (0.08 R)
• M2: 241,301 km (0.083 R)
• M3: 1,140,235 km (0.113 R)
• M4: 1,761,216 km (0.082 R)
• M5: 2,165,579 km (0.055 R)
• M6: 2,286,304 km (0.089 R)
• M7: 2,440,390 km (0.086 R)
• M8: 2,694,258 km (0.1 R)
• M9: 2,791,646 km (0.11 R)
• M10: 3,192,867 km (0.109 R)
• M11: 3,365,354 km (0.081 R)
• M12: 3,719,751 km (0.035 R)
• M13: 3,974,815 km (0.096 R)
• M14: 4,892,299 km (0.117 R)
• M15: 5,293,371 km (0.08 R)
• M16: 6,298,519 km (0.098 R)
• M17: 6,384,837 km (0.083 R)
• M18: 6,515,137 km (0.114 R)
• M19: 8,099,977 km (0.116 R)
• M20: 8,717,666 km (0.095 R)
• M21: 8,765,837 km (0.112 R)
• M22: 8,862,327 km (0.098 R)
• M23: 8,910,797 km (0.111 R)
• M24: 10,200,032 km (0.037 R)
• M25: 12,674,680 km (0.054 R)
• M26: 13,003,496 km (0.07 R)
• M27: 13,501,806 km (0.114 R)
• M28: 13,837,504 km (0.113 R)
• M29: 13,893,753 km (0.104 R)
• M30: 14,688,716 km (0.069 R)
• M31: 15,732,460 km (0.099 R)
• M32: 16,441,554 km (0.112 R)
• M33: 16,799,990 km (0.081 R)
• M34: 17,100,682 km (0.112 R)
• M35: 17,463,906 km (0.117 R)
• M36: 18,382,886 km (0.112 R)
• M37: 18,879,550 km (0.063 R)
• M38: 19,192,060 km (0.095 R)
• M39: 19,317,573 km (0.076 R)
• M40: 20,459,603 km (0.091 R)
• M41: 24,081,966 km (0.081 R)
• M42: 24,217,352 km (0.085 R)
• M43: 24,285,120 km (0.1 R)
• M44: 24,420,955 km (0.073 R)
• M45: 24,966,538 km (0.065 R)
• M46: 25,309,716 km (0.038 R)
• M47: 25,723,503 km (0.094 R)
• M48: 26,557,661 km (0.11 R)
• M49: 27,048,492 km (0.106 R)
• M50: 27,471,405 km (0.067 R)
• M51: 27,825,653 km (0.05 R)
• M52: 28,538,636 km (0.116 R)
• M53: 28,753,608 km (0.112 R)
• M54: 28,897,372 km (0.108 R)
• M55: 29,185,348 km (0.119 R)
• M56: 29,329,710 km (0.087 R)
• M57: 29,619,182 km (0.033 R)
• M58: 31,746,164 km (0.101 R)
• M59: 32,416,213 km (0.032 R)
• M60: 33,241,544 km (0.094 R)
• M61: 34,149,604 km (0.08 R)
• M62: 34,225,749 km (0.118 R)
• M63: 34,759,664 km (0.045 R)
• M64: 36,067,747 km (0.052 R)
• M65: 36,300,223 km (0.064 R)
• M66: 36,455,505 km (0.094 R)
• M67: 36,533,296 km (0.111 R)
• M68: 37,391,988 km (0.09 R)
• M69: 37,627,305 km (0.097 R)
• M70: 38,811,223 km (0.04 R)
• M71: 39,687,268 km (0.05 R)
• M72: 40,811,646 km (0.106 R)
• M73: 40,973,211 km (0.034 R)
• M74: 42,435,979 km (0.06 R)
• M75: 43,009,537 km (0.109 R)
• M76: 43,750,645 km (0.079 R)
• M77: 45,329,052 km (0.085 R)
• M78: 46,251,473 km (0.109 R)
• M79: 46,672,740 km (0.031 R)
• M80: 48,199,836 km (0.095 R)
• M81: 48,883,947 km (0.118 R)
• M82: 50,434,529 km (0.115 R)
• M83: 50,521,146 km (0.09 R)
• M84: 50,955,129 km (0.082 R)
• M85: 51,303,094 km (0.113 R)
• M86: 51,826,537 km (0.106 R)
• M87: 52,966,772 km (0.114 R)
• M88: 53,495,750 km (0.12 R)
• M89: 53,849,399 km (0.07 R)
• M90: 58,153,479 km (0.113 R)
• M91: 58,608,257 km (0.045 R)
• M92: 59,338,145 km (0.117 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: 248 - 13,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit