🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.3

Radius: 14.2

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.59 AU - 0.95 AU

Year: 458 Days

Day: 6.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 25,362,521 km

• M1: 176,825 km (0.105 R)
• M2: 272,268 km (0.088 R)
• M3: 385,065 km (0.06 R)
• M4: 492,327 km (0.072 R)
• M5: 662,719 km (0.105 R)
• M6: 754,871 km (0.084 R)
• M7: 1,154,297 km (0.071 R)
• M8: 1,278,613 km (0.111 R)
• M9: 1,383,481 km (0.111 R)
• M10: 1,481,617 km (0.088 R)
• M11: 1,577,061 km (0.119 R)
• M12: 1,674,898 km (0.045 R)
• M13: 1,904,082 km (0.058 R)
• M14: 2,025,406 km (0.092 R)
• M15: 2,189,514 km (0.113 R)
• M16: 2,519,527 km (0.106 R)
• M17: 2,696,801 km (0.09 R)
• M18: 2,821,416 km (0.095 R)
• M19: 2,941,842 km (0.116 R)
• M20: 3,200,946 km (0.073 R)
• M21: 3,333,489 km (0.102 R)
• M22: 3,440,751 km (0.104 R)
• M23: 3,535,596 km (0.091 R)
• M24: 3,638,220 km (0.115 R)
• M25: 4,001,893 km (0.111 R)
• M26: 4,116,335 km (0.082 R)
• M27: 4,289,869 km (0.11 R)
• M28: 4,384,863 km (0.07 R)
• M29: 4,764,842 km (0.034 R)
• M30: 4,863,277 km (0.093 R)
• M31: 5,023,945 km (0.114 R)
• M32: 5,311,472 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.1

Radius: 13.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.38 AU - 1.98 AU

Year: 1477 Days

Day: 8.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 25,362,521 km

• M1: 163,361 km (0.105 R)
• M2: 302,038 km (0.105 R)
• M3: 404,961 km (0.087 R)
• M4: 525,238 km (0.115 R)
• M5: 730,187 km (0.069 R)
• M6: 870,211 km (0.077 R)
• M7: 1,231,340 km (0.055 R)
• M8: 1,392,756 km (0.103 R)
• M9: 1,523,505 km (0.102 R)
• M10: 1,629,121 km (0.09 R)
• M11: 2,272,242 km (0.092 R)
• M12: 2,450,413 km (0.069 R)
• M13: 2,587,146 km (0.069 R)
• M14: 2,726,571 km (0.077 R)
• M15: 2,844,753 km (0.098 R)
• M16: 3,061,820 km (0.113 R)
• M17: 3,486,827 km (0.056 R)
• M18: 3,811,455 km (0.053 R)
• M19: 4,200,559 km (0.102 R)
• M20: 4,379,178 km (0.074 R)
• M21: 4,462,504 km (0.116 R)
• M22: 4,616,590 km (0.062 R)
• M23: 4,729,836 km (0.113 R)
• M24: 4,915,786 km (0.117 R)
• M25: 5,031,575 km (0.102 R)
• M26: 5,133,451 km (0.107 R)
• M27: 5,265,695 km (0.097 R)
• M28: 5,369,217 km (0.085 R)
• M29: 5,897,447 km (0.091 R)
• M30: 6,082,350 km (0.077 R)
• M31: 6,379,302 km (0.047 R)
• M32: 6,489,855 km (0.102 R)
• M33: 6,648,877 km (0.099 R)
• M34: 6,825,403 km (0.086 R)
• M35: 6,922,342 km (0.073 R)
• M36: 7,052,343 km (0.105 R)
• M37: 7,281,826 km (0.066 R)
• M38: 7,597,178 km (0.119 R)
• M39: 7,731,368 km (0.118 R)
• M40: 7,832,496 km (0.114 R)
• M41: 8,121,519 km (0.102 R)
• M42: 8,293,108 km (0.072 R)
• M43: 8,396,629 km (0.119 R)
• M44: 8,868,162 km (0.043 R)
• M45: 9,009,532 km (0.032 R)
• M46: 9,187,254 km (0.111 R)
• M47: 9,294,516 km (0.116 R)
• M48: 9,654,897 km (0.102 R)
• M49: 9,818,557 km (0.097 R)
• M50: 9,909,961 km (0.104 R)
• M51: 10,056,717 km (0.119 R)
• M52: 10,222,621 km (0.081 R)
• M53: 10,464,072 km (0.1 R)
• M54: 11,123,200 km (0.068 R)
• M55: 11,815,389 km (0.043 R)
• M56: 12,049,211 km (0.118 R)
• M57: 12,600,778 km (0.116 R)
• M58: 12,919,571 km (0.049 R)
• M59: 13,180,769 km (0.118 R)
• M60: 13,321,990 km (0.093 R)
• M61: 13,484,154 km (0.097 R)
• M62: 13,789,932 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.4

Radius: 12.8

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.48 AU - 2.32 AU

Year: 1776 Days

Day: 14.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 25,362,521 km

• M1: 190,438 km (0.077 R)
• M2: 372,200 km (0.107 R)
• M3: 594,801 km (0.107 R)
• M4: 720,314 km (0.12 R)
• M5: 864,825 km (0.115 R)
• M6: 1,019,958 km (0.081 R)
• M7: 1,391,111 km (0.093 R)
• M8: 1,487,900 km (0.099 R)
• M9: 1,780,963 km (0.095 R)
• M10: 1,946,717 km (0.118 R)
• M11: 2,068,191 km (0.095 R)
• M12: 2,268,203 km (0.113 R)
• M13: 2,383,543 km (0.095 R)
• M14: 2,487,813 km (0.096 R)
• M15: 2,647,134 km (0.113 R)
• M16: 2,768,907 km (0.094 R)
• M17: 2,990,162 km (0.116 R)
• M18: 3,074,685 km (0.065 R)
• M19: 3,160,105 km (0.085 R)
• M20: 3,246,124 km (0.118 R)
• M21: 3,643,755 km (0.075 R)
• M22: 3,856,184 km (0.061 R)
• M23: 4,293,309 km (0.061 R)
• M24: 4,453,229 km (0.11 R)
• M25: 4,680,618 km (0.049 R)
• M26: 5,334,361 km (0.093 R)
• M27: 5,803,949 km (0.106 R)
• M28: 5,892,361 km (0.067 R)
• M29: 5,999,024 km (0.094 R)
• M30: 6,469,061 km (0.078 R)
• M31: 6,634,516 km (0.108 R)
• M32: 6,950,915 km (0.109 R)
• M33: 7,502,184 km (0.092 R)
• M34: 7,637,420 km (0.091 R)
• M35: 7,851,495 km (0.042 R)
• M36: 7,949,481 km (0.071 R)
• M37: 8,126,904 km (0.051 R)
• M38: 8,365,513 km (0.083 R)
• M39: 8,646,907 km (0.079 R)
• M40: 9,467,900 km (0.074 R)
• M41: 9,866,728 km (0.1 R)
• M42: 10,057,614 km (0.062 R)
• M43: 10,249,549 km (0.039 R)
• M44: 10,335,418 km (0.031 R)
• M45: 10,550,839 km (0.115 R)
• M46: 10,659,147 km (0.119 R)
• M47: 10,767,756 km (0.065 R)
• M48: 11,338,771 km (0.104 R)
• M49: 11,516,343 km (0.086 R)
• M50: 11,605,653 km (0.04 R)
• M51: 12,055,045 km (0.118 R)
• M52: 12,213,769 km (0.037 R)
• M53: 12,395,829 km (0.095 R)
• M54: 12,762,942 km (0.112 R)
• M55: 13,017,408 km (0.078 R)
• M56: 13,180,171 km (0.088 R)
• M57: 13,273,520 km (0.093 R)
• M58: 13,649,160 km (0.093 R)
• M59: 13,862,038 km (0.113 R)
• M60: 14,579,360 km (0.067 R)
• M61: 14,796,875 km (0.107 R)
• M62: 15,137,509 km (0.111 R)
• M63: 15,333,183 km (0.109 R)
• M64: 15,653,173 km (0.093 R)
• M65: 15,851,241 km (0.037 R)
• M66: 16,124,855 km (0.073 R)
• M67: 16,274,752 km (0.111 R)
• M68: 16,425,098 km (0.059 R)
• M69: 16,601,175 km (0.041 R)
• M70: 16,702,004 km (0.048 R)
• M71: 17,082,132 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.6

Radius: 9.5

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.21 AU - 2.99 AU

Year: 2843 Days

Day: 13.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 173.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 25,362,521 km

• M1: 170,093 km (0.083 R)
• M2: 259,403 km (0.114 R)
• M3: 346,768 km (0.078 R)
• M4: 493,673 km (0.085 R)
• M5: 584,329 km (0.041 R)
• M6: 922,869 km (0.113 R)
• M7: 1,080,994 km (0.047 R)
• M8: 1,214,286 km (0.074 R)
• M9: 1,364,931 km (0.058 R)
• M10: 1,448,706 km (0.083 R)
• M11: 1,546,543 km (0.1 R)
• M12: 1,659,489 km (0.11 R)
• M13: 1,775,128 km (0.049 R)
• M14: 1,907,074 km (0.108 R)
• M15: 2,569,792 km (0.093 R)
• M16: 2,689,471 km (0.062 R)
• M17: 2,780,276 km (0.057 R)
• M18: 3,186,285 km (0.096 R)
• M19: 3,396,320 km (0.059 R)
• M20: 3,544,422 km (0.107 R)
• M21: 3,728,428 km (0.105 R)
• M22: 3,932,778 km (0.088 R)
• M23: 4,036,300 km (0.076 R)
• M24: 4,140,869 km (0.111 R)
• M25: 4,495,566 km (0.095 R)
• M26: 4,622,125 km (0.081 R)
• M27: 4,731,631 km (0.086 R)
• M28: 5,102,484 km (0.086 R)
• M29: 5,215,580 km (0.036 R)
• M30: 5,386,870 km (0.102 R)
• M31: 5,482,912 km (0.083 R)
• M32: 5,774,328 km (0.085 R)
• M33: 6,453,353 km (0.116 R)
• M34: 6,637,358 km (0.106 R)
• M35: 6,719,787 km (0.051 R)
• M36: 7,136,566 km (0.093 R)
• M37: 7,305,762 km (0.115 R)
• M38: 7,390,733 km (0.061 R)
• M39: 7,691,126 km (0.076 R)
• M40: 7,908,043 km (0.102 R)
• M41: 8,083,072 km (0.119 R)
• M42: 8,215,317 km (0.062 R)
• M43: 8,348,160 km (0.098 R)
• M44: 9,114,400 km (0.102 R)
• M45: 9,645,622 km (0.104 R)
• M46: 10,210,503 km (0.098 R)
• M47: 10,859,010 km (0.075 R)
• M48: 11,029,253 km (0.085 R)
• M49: 11,471,314 km (0.119 R)
• M50: 12,271,364 km (0.03 R)
• M51: 12,499,500 km (0.113 R)
• M52: 12,908,800 km (0.086 R)
• M53: 13,635,696 km (0.099 R)
• M54: 13,740,564 km (0.111 R)
• M55: 14,402,385 km (0.067 R)
• M56: 14,509,348 km (0.109 R)
• M57: 14,993,447 km (0.084 R)
• M58: 15,264,817 km (0.052 R)
• M59: 15,346,498 km (0.056 R)
• M60: 15,922,449 km (0.115 R)
• M61: 16,088,353 km (0.088 R)
• M62: 16,561,382 km (0.094 R)
• M63: 16,870,002 km (0.063 R)
• M64: 16,982,649 km (0.095 R)
• M65: 17,123,870 km (0.036 R)
• M66: 17,379,084 km (0.047 R)
• M67: 17,721,214 km (0.092 R)
• M68: 18,123,184 km (0.028 R)
• M69: 18,557,317 km (0.075 R)
• M70: 18,965,569 km (0.062 R)
• M71: 19,583,408 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.5

Radius: 8.6

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.58 AU - 5.64 AU

Year: 6713 Days

Day: 9 Hours

Environment

Temp: -214 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 25,362,521 km

• M1: 141,819 km (0.108 R)
• M2: 234,270 km (0.079 R)
• M3: 347,217 km (0.086 R)
• M4: 708,795 km (0.108 R)
• M5: 812,915 km (0.112 R)
• M6: 950,545 km (0.089 R)
• M7: 1,126,023 km (0.093 R)
• M8: 1,431,203 km (0.094 R)
• M9: 1,508,695 km (0.043 R)
• M10: 1,991,447 km (0.071 R)
• M11: 2,217,938 km (0.082 R)
• M12: 2,295,280 km (0.096 R)
• M13: 2,373,669 km (0.074 R)
• M14: 2,479,435 km (0.08 R)
• M15: 2,573,383 km (0.104 R)
• M16: 2,641,150 km (0.1 R)
• M17: 2,695,903 km (0.029 R)
• M18: 2,918,505 km (0.055 R)
• M19: 3,046,411 km (0.075 R)
• M20: 3,366,850 km (0.089 R)
• M21: 3,531,258 km (0.103 R)
• M22: 4,754,370 km (0.09 R)
• M23: 5,091,863 km (0.031 R)
• M24: 5,246,248 km (0.101 R)
• M25: 5,647,918 km (0.061 R)
• M26: 5,772,234 km (0.113 R)
• M27: 6,114,065 km (0.11 R)
• M28: 6,241,672 km (0.117 R)
• M29: 6,370,177 km (0.111 R)
• M30: 6,425,528 km (0.079 R)
• M31: 6,648,429 km (0.103 R)
• M32: 6,893,021 km (0.059 R)
• M33: 7,006,865 km (0.077 R)
• M34: 7,604,957 km (0.092 R)
• M35: 7,781,632 km (0.039 R)
• M36: 8,421,014 km (0.097 R)
• M37: 8,644,663 km (0.101 R)
• M38: 9,139,532 km (0.098 R)
• M39: 9,285,689 km (0.119 R)
• M40: 9,516,818 km (0.092 R)
• M41: 9,601,341 km (0.092 R)
• M42: 9,664,770 km (0.112 R)
• M43: 10,049,087 km (0.117 R)
• M44: 10,199,882 km (0.117 R)
• M45: 10,308,041 km (0.082 R)
• M46: 10,438,341 km (0.069 R)
• M47: 10,766,559 km (0.11 R)
• M48: 11,500,636 km (0.092 R)
• M49: 11,839,475 km (0.095 R)
• M50: 11,953,319 km (0.085 R)
• M51: 12,067,312 km (0.088 R)
• M52: 12,181,755 km (0.082 R)
• M53: 12,388,798 km (0.111 R)
• M54: 12,504,138 km (0.11 R)
• M55: 12,759,502 km (0.082 R)
• M56: 13,275,165 km (0.116 R)
• M57: 13,917,539 km (0.119 R)
• M58: 14,765,160 km (0.106 R)
• M59: 14,985,817 km (0.114 R)
• M60: 15,356,072 km (0.04 R)
• M61: 15,829,250 km (0.049 R)
• M62: 16,459,356 km (0.054 R)
• M63: 16,841,279 km (0.072 R)
• M64: 16,943,604 km (0.065 R)
• M65: 17,149,002 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.4

Radius: 11.1

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.76 AU - 5.1 AU

Year: 7424 Days

Day: 9.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 52.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 25,362,521 km

• M1: 141,669 km (0.095 R)
• M2: 213,925 km (0.074 R)
• M3: 385,514 km (0.042 R)
• M4: 545,284 km (0.116 R)
• M5: 822,040 km (0.078 R)
• M6: 1,215,483 km (0.112 R)
• M7: 1,308,682 km (0.099 R)
• M8: 1,768,696 km (0.061 R)
• M9: 1,940,284 km (0.114 R)
• M10: 2,511,898 km (0.107 R)
• M11: 3,448,979 km (0.119 R)
• M12: 3,829,705 km (0.108 R)
• M13: 3,968,981 km (0.095 R)
• M14: 4,513,817 km (0.068 R)
• M15: 4,810,020 km (0.113 R)
• M16: 5,266,443 km (0.119 R)
• M17: 6,090,279 km (0.09 R)
• M18: 6,220,579 km (0.112 R)
• M19: 6,318,864 km (0.041 R)
• M20: 6,450,959 km (0.109 R)
• M21: 6,650,673 km (0.072 R)
• M22: 6,784,862 km (0.085 R)
• M23: 7,365,601 km (0.057 R)
• M24: 7,785,223 km (0.083 R)
• M25: 8,356,836 km (0.099 R)
• M26: 8,942,063 km (0.111 R)
• M27: 9,090,464 km (0.08 R)
• M28: 9,578,303 km (0.12 R)
• M29: 9,844,587 km (0.049 R)
• M30: 9,921,181 km (0.063 R)
• M31: 9,997,925 km (0.119 R)
• M32: 10,113,265 km (0.038 R)
• M33: 10,384,486 km (0.073 R)
• M34: 11,776,045 km (0.049 R)
• M35: 14,468,807 km (0.1 R)
• M36: 14,818,267 km (0.046 R)
• M37: 15,170,570 km (0.076 R)
• M38: 15,259,132 km (0.064 R)
• M39: 16,425,397 km (0.025 R)
• M40: 17,249,532 km (0.114 R)
• M41: 17,388,209 km (0.109 R)
• M42: 17,573,711 km (0.098 R)
• M43: 17,713,285 km (0.039 R)
• M44: 17,806,485 km (0.078 R)
• M45: 18,275,175 km (0.079 R)
• M46: 18,985,765 km (0.108 R)
• M47: 19,416,457 km (0.109 R)
• M48: 20,092,939 km (0.096 R)
• M49: 20,482,940 km (0.117 R)
• M50: 22,722,869 km (0.093 R)
• M51: 23,078,314 km (0.107 R)
• M52: 23,231,203 km (0.071 R)
• M53: 23,435,554 km (0.112 R)
• M54: 23,897,512 km (0.077 R)
• M55: 24,103,807 km (0.101 R)
• M56: 24,207,179 km (0.088 R)
• M57: 24,726,284 km (0.111 R)
• M58: 24,934,973 km (0.086 R)
• M59: 25,144,261 km (0.11 R)
• M60: 25,353,997 km (0.114 R)
• M61: 25,881,180 km (0.097 R)
• M62: 26,146,117 km (0.084 R)
• M63: 27,376,410 km (0.12 R)
• M64: 27,700,439 km (0.067 R)
• M65: 29,119,375 km (0.08 R)
• M66: 30,394,099 km (0.055 R)
• M67: 30,841,845 km (0.074 R)
• M68: 31,010,292 km (0.111 R)
• M69: 31,970,561 km (0.046 R)
• M70: 32,197,950 km (0.114 R)
• M71: 32,425,937 km (0.117 R)
• M72: 33,631,247 km (0.04 R)
• M73: 34,210,340 km (0.097 R)
• M74: 35,319,758 km (0.117 R)
• M75: 35,495,984 km (0.043 R)
• M76: 35,790,393 km (0.118 R)
• M77: 36,144,790 km (0.108 R)
• M78: 36,263,122 km (0.025 R)
• M79: 36,678,556 km (0.026 R)
• M80: 37,454,071 km (0.092 R)
• M81: 37,753,715 km (0.059 R)
• M82: 38,295,260 km (0.063 R)
• M83: 38,657,735 km (0.067 R)
• M84: 38,960,671 km (0.08 R)
• M85: 39,142,732 km (0.086 R)
• M86: 39,629,822 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.1

Radius: 6.4

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.01 AU - 7.39 AU

Year: 13104 Days

Day: 23.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 25,362,521 km

• M1: 252,222 km (0.084 R)
• M2: 388,057 km (0.039 R)
• M3: 469,887 km (0.067 R)
• M4: 578,196 km (0.098 R)
• M5: 808,277 km (0.064 R)
• M6: 2,340,907 km (0.096 R)
• M7: 4,007,577 km (0.074 R)
• M8: 4,317,395 km (0.096 R)
• M9: 4,850,711 km (0.089 R)
• M10: 4,959,917 km (0.113 R)
• M11: 5,563,545 km (0.085 R)
• M12: 6,237,334 km (0.088 R)
• M13: 6,717,094 km (0.046 R)
• M14: 8,070,656 km (0.075 R)
• M15: 8,330,357 km (0.025 R)
• M16: 8,408,896 km (0.101 R)
• M17: 8,566,423 km (0.093 R)
• M18: 8,672,189 km (0.096 R)
• M19: 8,751,625 km (0.091 R)
• M20: 9,478,222 km (0.085 R)
• M21: 12,994,071 km (0.077 R)
• M22: 14,444,871 km (0.085 R)
• M23: 15,205,277 km (0.105 R)
• M24: 15,913,773 km (0.111 R)
• M25: 16,304,672 km (0.095 R)
• M26: 18,272,482 km (0.074 R)
• M27: 19,718,346 km (0.102 R)
• M28: 19,997,795 km (0.109 R)
• M29: 20,313,895 km (0.076 R)
• M30: 20,596,186 km (0.098 R)
• M31: 21,057,845 km (0.086 R)
• M32: 21,450,988 km (0.059 R)
• M33: 23,121,548 km (0.091 R)
• M34: 24,084,060 km (0.092 R)
• M35: 24,420,356 km (0.08 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 13,412 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit