🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.56 AU - 0.68 AU

Year: 315 Days

Day: 31.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.63 AU - 0.69 AU

Year: 346 Days

Day: 29.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,159,117 km

• M1: 585,227 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.5

Radius: 8.1

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.76 AU - 0.94 AU

Year: 506 Days

Day: 6 Hours

Environment

Temp: -154 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 33,159,117 km

• M1: 106,065 km (0.097 R)
• M2: 175,927 km (0.044 R)
• M3: 255,064 km (0.055 R)
• M4: 315,951 km (0.099 R)
• M5: 378,034 km (0.079 R)
• M6: 442,660 km (0.117 R)
• M7: 534,513 km (0.088 R)
• M8: 630,256 km (0.069 R)
• M9: 751,879 km (0.08 R)
• M10: 826,079 km (0.114 R)
• M11: 878,140 km (0.116 R)
• M12: 1,022,801 km (0.114 R)
• M13: 1,079,199 km (0.101 R)
• M14: 1,199,027 km (0.071 R)
• M15: 1,254,677 km (0.112 R)
• M16: 1,311,225 km (0.066 R)
• M17: 1,364,482 km (0.118 R)
• M18: 1,507,498 km (0.032 R)
• M19: 1,602,792 km (0.088 R)
• M20: 1,668,764 km (0.076 R)
• M21: 1,726,808 km (0.099 R)
• M22: 1,900,491 km (0.096 R)
• M23: 1,984,865 km (0.033 R)
• M24: 2,056,073 km (0.114 R)
• M25: 2,264,912 km (0.085 R)
• M26: 2,339,561 km (0.063 R)
• M27: 2,470,758 km (0.102 R)
• M28: 2,578,469 km (0.099 R)
• M29: 2,666,881 km (0.038 R)
• M30: 2,719,390 km (0.112 R)
• M31: 2,788,056 km (0.101 R)
• M32: 2,852,083 km (0.104 R)
• M33: 2,921,946 km (0.113 R)
• M34: 2,997,792 km (0.101 R)
• M35: 3,085,456 km (0.106 R)
• M36: 3,179,404 km (0.106 R)
• M37: 3,246,274 km (0.056 R)
• M38: 3,330,647 km (0.099 R)
• M39: 3,381,660 km (0.093 R)
• M40: 3,582,271 km (0.026 R)
• M41: 3,995,310 km (0.088 R)
• M42: 4,097,934 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.3

Radius: 9.7

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.81 AU - 0.95 AU

Year: 533 Days

Day: 6.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 33,159,117 km

• M1: 158,873 km (0.111 R)
• M2: 219,909 km (0.114 R)
• M3: 313,856 km (0.116 R)
• M4: 404,513 km (0.118 R)
• M5: 485,595 km (0.099 R)
• M6: 555,158 km (0.1 R)
• M7: 647,759 km (0.076 R)
• M8: 774,618 km (0.067 R)
• M9: 849,866 km (0.068 R)
• M10: 1,082,041 km (0.1 R)
• M11: 1,176,886 km (0.092 R)
• M12: 1,279,660 km (0.067 R)
• M13: 1,390,662 km (0.072 R)
• M14: 1,473,389 km (0.116 R)
• M15: 1,557,912 km (0.066 R)
• M16: 1,720,974 km (0.078 R)
• M17: 1,866,981 km (0.084 R)
• M18: 2,046,349 km (0.081 R)
• M19: 2,129,376 km (0.108 R)
• M20: 2,195,349 km (0.12 R)
• M21: 2,274,187 km (0.115 R)
• M22: 2,341,805 km (0.112 R)
• M23: 2,410,022 km (0.039 R)
• M24: 2,599,413 km (0.086 R)
• M25: 2,715,501 km (0.108 R)
• M26: 2,800,472 km (0.072 R)
• M27: 3,391,833 km (0.099 R)
• M28: 3,590,199 km (0.113 R)
• M29: 3,676,517 km (0.065 R)
• M30: 3,778,094 km (0.053 R)
• M31: 4,021,041 km (0.051 R)
• M32: 4,148,349 km (0.069 R)
• M33: 4,216,266 km (0.073 R)
• M34: 4,284,483 km (0.066 R)
• M35: 4,345,519 km (0.09 R)
• M36: 4,437,522 km (0.072 R)
• M37: 4,507,085 km (0.069 R)
• M38: 4,569,168 km (0.059 R)
• M39: 4,647,108 km (0.091 R)
• M40: 4,709,790 km (0.111 R)
• M41: 4,828,271 km (0.075 R)
• M42: 4,923,715 km (0.1 R)
• M43: 5,319,850 km (0.052 R)
• M44: 5,385,523 km (0.097 R)
• M45: 5,484,557 km (0.059 R)
• M46: 5,592,567 km (0.109 R)

Asteroid Belt

Center: 1.16 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.1

Radius: 9.8

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.23 AU - 1.65 AU

Year: 1116 Days

Day: 11 Hours

Environment

Temp: -182 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 33,159,117 km

• M1: 127,757 km (0.106 R)
• M2: 201,359 km (0.097 R)
• M3: 314,754 km (0.102 R)
• M4: 423,960 km (0.076 R)
• M5: 753,824 km (0.076 R)
• M6: 848,070 km (0.109 R)
• M7: 946,655 km (0.117 R)
• M8: 1,036,264 km (0.106 R)
• M9: 1,174,044 km (0.076 R)
• M10: 1,266,346 km (0.065 R)
• M11: 1,356,254 km (0.115 R)
• M12: 1,478,177 km (0.112 R)
• M13: 1,712,148 km (0.078 R)
• M14: 1,871,170 km (0.08 R)
• M15: 2,013,139 km (0.107 R)
• M16: 2,204,325 km (0.088 R)
• M17: 2,278,974 km (0.118 R)
• M18: 2,348,687 km (0.069 R)
• M19: 2,689,620 km (0.094 R)
• M20: 2,763,521 km (0.058 R)
• M21: 2,838,021 km (0.108 R)
• M22: 2,944,834 km (0.074 R)
• M23: 3,253,454 km (0.12 R)
• M24: 3,365,354 km (0.075 R)
• M25: 3,909,142 km (0.054 R)
• M26: 4,155,679 km (0.116 R)
• M27: 4,227,037 km (0.118 R)
• M28: 5,062,242 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.8

Radius: 12

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.2 AU - 3.48 AU

Year: 3941 Days

Day: 6.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 33,159,117 km

• M1: 220,058 km (0.093 R)
• M2: 319,242 km (0.105 R)
• M3: 530,025 km (0.071 R)
• M4: 609,462 km (0.098 R)
• M5: 752,776 km (0.107 R)
• M6: 1,007,392 km (0.115 R)
• M7: 1,163,273 km (0.119 R)
• M8: 1,393,504 km (0.108 R)
• M9: 1,489,995 km (0.046 R)
• M10: 1,638,994 km (0.114 R)
• M11: 1,751,641 km (0.118 R)
• M12: 2,028,398 km (0.071 R)
• M13: 2,172,311 km (0.079 R)
• M14: 2,262,518 km (0.093 R)
• M15: 2,354,072 km (0.064 R)
• M16: 2,855,375 km (0.11 R)
• M17: 3,042,521 km (0.097 R)
• M18: 3,207,977 km (0.096 R)
• M19: 3,363,559 km (0.043 R)
• M20: 3,508,369 km (0.092 R)
• M21: 3,709,130 km (0.108 R)
• M22: 3,900,166 km (0.052 R)
• M23: 3,982,894 km (0.102 R)
• M24: 4,150,443 km (0.095 R)
• M25: 4,235,116 km (0.064 R)
• M26: 4,377,383 km (0.101 R)
• M27: 5,188,802 km (0.091 R)
• M28: 5,280,057 km (0.088 R)
• M29: 5,433,544 km (0.089 R)
• M30: 5,557,411 km (0.041 R)
• M31: 5,839,553 km (0.06 R)
• M32: 5,934,697 km (0.073 R)
• M33: 6,094,318 km (0.093 R)
• M34: 6,401,592 km (0.078 R)
• M35: 6,697,497 km (0.097 R)
• M36: 7,166,785 km (0.117 R)
• M37: 7,560,228 km (0.107 R)
• M38: 7,681,402 km (0.098 R)
• M39: 7,890,540 km (0.068 R)
• M40: 8,475,617 km (0.074 R)
• M41: 8,601,578 km (0.08 R)
• M42: 8,837,195 km (0.083 R)
• M43: 8,946,551 km (0.114 R)
• M44: 9,148,359 km (0.045 R)
• M45: 9,481,962 km (0.109 R)
• M46: 9,594,011 km (0.088 R)
• M47: 9,800,605 km (0.08 R)
• M48: 10,008,696 km (0.038 R)
• M49: 10,103,691 km (0.081 R)
• M50: 10,352,322 km (0.111 R)
• M51: 10,487,110 km (0.113 R)
• M52: 10,699,988 km (0.113 R)
• M53: 11,090,737 km (0.119 R)
• M54: 11,406,688 km (0.06 R)
• M55: 11,725,631 km (0.109 R)
• M56: 12,108,302 km (0.098 R)
• M57: 12,536,002 km (0.115 R)
• M58: 13,010,078 km (0.082 R)
• M59: 13,113,899 km (0.072 R)
• M60: 13,197,225 km (0.061 R)
• M61: 13,301,644 km (0.119 R)
• M62: 13,406,213 km (0.093 R)
• M63: 13,658,435 km (0.06 R)
• M64: 13,764,051 km (0.076 R)
• M65: 14,039,760 km (0.117 R)
• M66: 14,167,666 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567

Radius: 14.1

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.86 AU - 4.98 AU

Year: 6000 Days

Day: 11.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 33,159,117 km

• M1: 212,130 km (0.118 R)
• M2: 383,868 km (0.079 R)
• M3: 479,312 km (0.06 R)
• M4: 816,356 km (0.077 R)
• M5: 1,182,272 km (0.075 R)
• M6: 1,482,365 km (0.037 R)
• M7: 1,650,663 km (0.11 R)
• M8: 1,969,905 km (0.104 R)
• M9: 2,062,207 km (0.071 R)
• M10: 2,486,317 km (0.09 R)
• M11: 2,980,588 km (0.119 R)
• M12: 3,109,093 km (0.092 R)
• M13: 3,305,365 km (0.115 R)
• M14: 4,084,022 km (0.035 R)
• M15: 4,469,835 km (0.057 R)
• M16: 4,692,137 km (0.118 R)
• M17: 4,943,462 km (0.06 R)
• M18: 5,750,991 km (0.035 R)
• M19: 5,993,190 km (0.112 R)
• M20: 6,293,882 km (0.075 R)
• M21: 6,853,228 km (0.063 R)
• M22: 7,052,941 km (0.067 R)
• M23: 7,633,830 km (0.111 R)
• M24: 8,260,645 km (0.071 R)
• M25: 8,966,148 km (0.058 R)
• M26: 9,090,763 km (0.119 R)
• M27: 9,563,642 km (0.102 R)
• M28: 9,883,183 km (0.06 R)
• M29: 10,141,539 km (0.069 R)
• M30: 10,369,376 km (0.11 R)
• M31: 10,566,098 km (0.081 R)
• M32: 11,601,913 km (0.096 R)
• M33: 11,840,372 km (0.074 R)
• M34: 11,942,996 km (0.099 R)
• M35: 12,080,327 km (0.097 R)
• M36: 12,322,077 km (0.068 R)
• M37: 13,554,315 km (0.075 R)
• M38: 13,805,490 km (0.1 R)
• M39: 14,825,747 km (0.08 R)
• M40: 15,233,102 km (0.119 R)
• M41: 15,382,251 km (0.091 R)
• M42: 16,401,312 km (0.113 R)
• M43: 16,630,646 km (0.107 R)
• M44: 16,784,283 km (0.092 R)
• M45: 16,899,772 km (0.082 R)
• M46: 17,247,737 km (0.099 R)
• M47: 17,637,140 km (0.085 R)
• M48: 17,793,769 km (0.051 R)
• M49: 18,069,029 km (0.061 R)
• M50: 18,187,361 km (0.107 R)
• M51: 18,504,359 km (0.106 R)
• M52: 18,703,324 km (0.105 R)
• M53: 19,871,534 km (0.095 R)
• M54: 20,485,184 km (0.056 R)
• M55: 21,354,647 km (0.105 R)
• M56: 21,605,224 km (0.085 R)
• M57: 21,814,810 km (0.062 R)
• M58: 22,575,067 km (0.091 R)
• M59: 23,215,196 km (0.084 R)
• M60: 24,164,993 km (0.073 R)
• M61: 24,863,765 km (0.095 R)
• M62: 26,147,015 km (0.1 R)
• M63: 26,281,055 km (0.097 R)
• M64: 26,594,462 km (0.058 R)
• M65: 26,684,371 km (0.107 R)
• M66: 26,954,395 km (0.116 R)
• M67: 27,089,781 km (0.101 R)
• M68: 27,406,480 km (0.095 R)
• M69: 28,043,617 km (0.056 R)
• M70: 29,425,303 km (0.054 R)
• M71: 30,124,523 km (0.07 R)
• M72: 30,405,767 km (0.056 R)
• M73: 30,593,662 km (0.097 R)
• M74: 31,112,617 km (0.112 R)
• M75: 31,349,431 km (0.093 R)
• M76: 31,491,848 km (0.101 R)
• M77: 31,872,574 km (0.082 R)
• M78: 31,968,018 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.1

Radius: 6.4

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 7.5 AU - 9.3 AU

Year: 15719 Days

Day: 21.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 33,159,117 km

• M1: 123,269 km (0.095 R)
• M2: 164,258 km (0.081 R)
• M3: 213,476 km (0.116 R)
• M4: 473,477 km (0.115 R)
• M5: 600,635 km (0.118 R)
• M6: 757,264 km (0.104 R)
• M7: 1,088,175 km (0.073 R)
• M8: 1,672,355 km (0.11 R)
• M9: 4,181,260 km (0.102 R)
• M10: 4,247,682 km (0.083 R)
• M11: 5,867,528 km (0.094 R)
• M12: 5,941,878 km (0.091 R)
• M13: 6,242,420 km (0.046 R)
• M14: 6,471,155 km (0.087 R)
• M15: 7,333,138 km (0.079 R)
• M16: 8,106,260 km (0.054 R)
• M17: 8,230,725 km (0.091 R)
• M18: 9,119,486 km (0.11 R)
• M19: 9,994,035 km (0.113 R)
• M20: 10,082,896 km (0.096 R)
• M21: 10,849,286 km (0.054 R)
• M22: 10,940,691 km (0.085 R)
• M23: 11,308,851 km (0.105 R)
• M24: 11,541,027 km (0.11 R)
• M25: 11,774,699 km (0.093 R)
• M26: 11,962,893 km (0.1 R)
• M27: 12,057,289 km (0.059 R)
• M28: 13,063,784 km (0.099 R)
• M29: 13,405,316 km (0.056 R)
• M30: 14,246,804 km (0.116 R)
• M31: 14,547,795 km (0.05 R)
• M32: 15,876,523 km (0.096 R)
• M33: 16,450,380 km (0.119 R)
• M34: 16,977,862 km (0.095 R)
• M35: 17,887,268 km (0.115 R)
• M36: 17,995,277 km (0.061 R)
• M37: 18,484,163 km (0.086 R)
• M38: 18,647,973 km (0.112 R)
• M39: 19,087,492 km (0.097 R)
• M40: 19,976,701 km (0.072 R)
• M41: 20,822,528 km (0.095 R)
• M42: 21,107,063 km (0.094 R)
• M43: 21,680,023 km (0.106 R)
• M44: 22,724,066 km (0.115 R)
• M45: 23,547,453 km (0.111 R)
• M46: 24,740,645 km (0.077 R)
• M47: 25,831,214 km (0.048 R)
• M48: 26,999,274 km (0.097 R)
• M49: 32,695,213 km (0.041 R)
• M50: 33,092,246 km (0.092 R)
• M51: 35,168,365 km (0.119 R)
• M52: 35,235,983 km (0.106 R)
• M53: 36,051,591 km (0.118 R)
• M54: 37,908,998 km (0.104 R)
• M55: 37,978,262 km (0.065 R)
• M56: 42,434,334 km (0.061 R)
• M57: 42,939,526 km (0.057 R)
• M58: 44,833,435 km (0.105 R)
• M59: 45,053,792 km (0.116 R)
• M60: 45,642,909 km (0.052 R)
• M61: 48,551,540 km (0.074 R)
• M62: 49,306,860 km (0.106 R)
• M63: 49,610,095 km (0.112 R)
• M64: 49,686,090 km (0.116 R)
• M65: 50,142,364 km (0.061 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.8

Radius: 7.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.75 AU - 9.11 AU

Year: 15804 Days

Day: 20.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 33,159,117 km

• M1: 89,310 km (0.116 R)
• M2: 168,148 km (0.107 R)
• M3: 260,151 km (0.091 R)
• M4: 372,947 km (0.112 R)
• M5: 611,257 km (0.097 R)
• M6: 713,881 km (0.076 R)
• M7: 822,639 km (0.041 R)
• M8: 1,229,545 km (0.104 R)
• M9: 1,278,463 km (0.096 R)
• M10: 1,327,831 km (0.098 R)
• M11: 1,602,792 km (0.099 R)
• M12: 1,710,502 km (0.092 R)
• M13: 2,204,773 km (0.056 R)
• M14: 2,719,839 km (0.117 R)
• M15: 3,046,261 km (0.071 R)
• M16: 3,270,808 km (0.083 R)
• M17: 3,316,435 km (0.094 R)
• M18: 3,547,414 km (0.05 R)
• M19: 3,594,388 km (0.026 R)
• M20: 4,049,764 km (0.119 R)
• M21: 4,271,917 km (0.1 R)
• M22: 4,346,716 km (0.085 R)
• M23: 4,447,395 km (0.098 R)
• M24: 4,548,673 km (0.098 R)
• M25: 4,676,579 km (0.072 R)
• M26: 4,779,652 km (0.056 R)
• M27: 5,119,987 km (0.106 R)
• M28: 5,333,314 km (0.079 R)
• M29: 6,731,605 km (0.104 R)
• M30: 6,848,142 km (0.047 R)
• M31: 7,501,136 km (0.096 R)
• M32: 7,682,599 km (0.104 R)
• M33: 8,142,911 km (0.078 R)
• M34: 8,235,961 km (0.058 R)
• M35: 8,454,673 km (0.101 R)
• M36: 9,609,120 km (0.116 R)
• M37: 9,740,467 km (0.076 R)
• M38: 9,971,745 km (0.115 R)
• M39: 10,676,351 km (0.103 R)
• M40: 11,745,527 km (0.081 R)
• M41: 12,381,917 km (0.11 R)
• M42: 13,138,583 km (0.118 R)
• M43: 13,394,096 km (0.111 R)
• M44: 13,835,858 km (0.037 R)
• M45: 13,910,059 km (0.092 R)
• M46: 15,151,871 km (0.105 R)
• M47: 17,338,992 km (0.068 R)
• M48: 17,419,026 km (0.074 R)
• M49: 17,619,338 km (0.081 R)
• M50: 18,265,601 km (0.095 R)
• M51: 19,622,902 km (0.115 R)
• M52: 20,124,504 km (0.086 R)
• M53: 20,376,876 km (0.119 R)
• M54: 20,884,760 km (0.09 R)
• M55: 22,042,648 km (0.1 R)
• M56: 22,172,648 km (0.074 R)
• M57: 22,520,463 km (0.09 R)
• M58: 23,177,348 km (0.038 R)
• M59: 23,530,399 km (0.115 R)
• M60: 24,689,633 km (0.106 R)
• M61: 24,869,748 km (0.094 R)
• M62: 25,185,699 km (0.111 R)
• M63: 26,371,412 km (0.107 R)
• M64: 26,601,493 km (0.097 R)
• M65: 27,156,352 km (0.115 R)
• M66: 28,465,932 km (0.102 R)
• M67: 28,986,083 km (0.075 R)
• M68: 29,366,361 km (0.114 R)
• M69: 29,461,655 km (0.074 R)
• M70: 29,843,878 km (0.107 R)
• M71: 31,926,729 km (0.109 R)
• M72: 32,024,715 km (0.1 R)
• M73: 32,319,423 km (0.108 R)
• M74: 32,763,130 km (0.081 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 13,239 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit