🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.57 AU - 0.67 AU

Year: 320 Days

Day: 18.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,076,301 km

• M1: 165,605 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37

Radius: 12.4

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.92 AU - 1.14 AU

Year: 686 Days

Day: 8.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,076,301 km

• M1: 155,582 km (0.081 R)
• M2: 262,245 km (0.102 R)
• M3: 354,397 km (0.052 R)
• M4: 451,486 km (0.088 R)
• M5: 536,159 km (0.109 R)
• M6: 613,501 km (0.077 R)
• M7: 717,920 km (0.063 R)
• M8: 821,143 km (0.101 R)
• M9: 902,374 km (0.076 R)
• M10: 989,440 km (0.116 R)
• M11: 1,160,730 km (0.071 R)
• M12: 1,291,329 km (0.117 R)
• M13: 1,387,670 km (0.061 R)
• M14: 1,479,972 km (0.104 R)
• M15: 1,608,776 km (0.067 R)
• M16: 1,713,195 km (0.1 R)
• M17: 1,802,056 km (0.118 R)
• M18: 2,169,768 km (0.113 R)
• M19: 2,321,161 km (0.038 R)
• M20: 2,496,489 km (0.12 R)
• M21: 2,643,095 km (0.058 R)
• M22: 2,822,164 km (0.112 R)
• M23: 2,915,513 km (0.114 R)

Asteroid Belt

Center: 1.41 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.1

Radius: 9.8

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.56 AU - 2 AU

Year: 1558 Days

Day: 9.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 49,076,301 km

• M1: 122,072 km (0.093 R)
• M2: 256,710 km (0.065 R)
• M3: 428,149 km (0.038 R)
• M4: 534,214 km (0.115 R)
• M5: 660,026 km (0.086 R)
• M6: 744,698 km (0.097 R)
• M7: 854,952 km (0.09 R)
• M8: 1,028,336 km (0.076 R)
• M9: 1,275,471 km (0.08 R)
• M10: 1,455,438 km (0.105 R)
• M11: 1,776,325 km (0.115 R)
• M12: 1,840,503 km (0.102 R)
• M13: 2,015,083 km (0.107 R)
• M14: 2,225,867 km (0.109 R)
• M15: 2,318,468 km (0.105 R)
• M16: 2,412,415 km (0.114 R)
• M17: 2,555,730 km (0.086 R)
• M18: 2,701,887 km (0.085 R)
• M19: 2,850,887 km (0.116 R)
• M20: 2,934,811 km (0.071 R)
• M21: 3,209,174 km (0.045 R)
• M22: 3,270,359 km (0.1 R)
• M23: 3,367,149 km (0.07 R)
• M24: 3,755,056 km (0.093 R)
• M25: 3,819,682 km (0.106 R)
• M26: 3,959,108 km (0.048 R)
• M27: 4,053,205 km (0.091 R)
• M28: 4,119,327 km (0.088 R)
• M29: 4,456,072 km (0.063 R)
• M30: 4,672,241 km (0.079 R)
• M31: 5,023,347 km (0.111 R)
• M32: 5,176,386 km (0.098 R)
• M33: 5,424,568 km (0.095 R)
• M34: 5,518,665 km (0.116 R)
• M35: 5,592,268 km (0.088 R)
• M36: 5,761,612 km (0.04 R)
• M37: 5,836,262 km (0.12 R)
• M38: 6,094,767 km (0.105 R)
• M39: 6,258,128 km (0.068 R)
• M40: 6,389,923 km (0.085 R)
• M41: 6,489,406 km (0.08 R)
• M42: 6,555,977 km (0.093 R)
• M43: 6,645,137 km (0.115 R)
• M44: 7,200,146 km (0.096 R)
• M45: 7,664,198 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.1

Radius: 10.3

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.67 AU - 3.05 AU

Year: 3173 Days

Day: 9.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 49,076,301 km

• M1: 131,796 km (0.087 R)
• M2: 202,855 km (0.11 R)
• M3: 271,819 km (0.119 R)
• M4: 499,358 km (0.12 R)
• M5: 571,015 km (0.105 R)
• M6: 908,209 km (0.054 R)
• M7: 1,069,176 km (0.078 R)
• M8: 1,202,767 km (0.06 R)
• M9: 1,367,923 km (0.076 R)
• M10: 1,595,461 km (0.064 R)
• M11: 1,720,974 km (0.116 R)
• M12: 1,849,778 km (0.087 R)
• M13: 2,056,971 km (0.077 R)
• M14: 2,163,335 km (0.113 R)
• M15: 2,756,640 km (0.06 R)
• M16: 2,891,428 km (0.062 R)
• M17: 3,745,631 km (0.084 R)
• M18: 3,933,078 km (0.113 R)
• M19: 4,066,070 km (0.09 R)
• M20: 4,613,299 km (0.065 R)
• M21: 4,814,508 km (0.097 R)
• M22: 4,977,420 km (0.081 R)
• M23: 5,690,553 km (0.109 R)
• M24: 5,755,030 km (0.043 R)
• M25: 5,928,115 km (0.031 R)
• M26: 5,993,489 km (0.113 R)
• M27: 6,081,004 km (0.1 R)
• M28: 6,213,099 km (0.104 R)
• M29: 6,502,720 km (0.108 R)
• M30: 6,570,189 km (0.119 R)
• M31: 6,728,463 km (0.106 R)
• M32: 7,025,864 km (0.084 R)
• M33: 7,327,603 km (0.104 R)
• M34: 8,331,405 km (0.117 R)
• M35: 8,924,261 km (0.069 R)
• M36: 9,074,607 km (0.074 R)
• M37: 9,251,132 km (0.075 R)
• M38: 9,607,474 km (0.05 R)
• M39: 9,761,560 km (0.089 R)
• M40: 10,228,904 km (0.108 R)
• M41: 10,836,720 km (0.079 R)
• M42: 10,943,683 km (0.098 R)
• M43: 11,050,944 km (0.097 R)
• M44: 12,673,333 km (0.054 R)
• M45: 13,297,306 km (0.106 R)
• M46: 13,641,830 km (0.114 R)
• M47: 13,728,297 km (0.082 R)
• M48: 14,281,062 km (0.072 R)
• M49: 14,457,138 km (0.094 R)
• M50: 14,752,145 km (0.087 R)
• M51: 15,288,154 km (0.031 R)
• M52: 15,408,281 km (0.08 R)
• M53: 15,891,333 km (0.063 R)
• M54: 16,165,396 km (0.12 R)
• M55: 16,903,512 km (0.052 R)
• M56: 16,996,562 km (0.084 R)
• M57: 17,810,225 km (0.056 R)
• M58: 18,094,760 km (0.116 R)
• M59: 18,412,805 km (0.058 R)
• M60: 18,700,631 km (0.094 R)
• M61: 19,899,210 km (0.08 R)
• M62: 20,326,311 km (0.077 R)
• M63: 20,425,345 km (0.118 R)
• M64: 20,524,529 km (0.107 R)
• M65: 21,089,261 km (0.084 R)
• M66: 21,591,909 km (0.105 R)
• M67: 22,404,376 km (0.046 R)
• M68: 22,609,175 km (0.058 R)
• M69: 22,917,347 km (0.079 R)
• M70: 23,054,677 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.9

Radius: 8

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.25 AU - 3.67 AU

Year: 4222 Days

Day: 14.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 49,076,301 km

• M1: 111,899 km (0.086 R)
• M2: 186,249 km (0.072 R)
• M3: 258,954 km (0.107 R)
• M4: 320,439 km (0.09 R)
• M5: 480,808 km (0.088 R)
• M6: 571,314 km (0.078 R)
• M7: 624,272 km (0.11 R)
• M8: 679,174 km (0.117 R)
• M9: 953,686 km (0.091 R)
• M10: 1,332,468 km (0.118 R)
• M11: 1,850,675 km (0.08 R)
• M12: 1,997,730 km (0.112 R)
• M13: 2,097,811 km (0.04 R)
• M14: 2,165,579 km (0.095 R)
• M15: 2,320,712 km (0.05 R)
• M16: 2,408,526 km (0.119 R)
• M17: 2,623,797 km (0.08 R)
• M18: 2,789,402 km (0.074 R)
• M19: 2,977,446 km (0.046 R)
• M20: 3,405,895 km (0.073 R)
• M21: 3,979,004 km (0.113 R)
• M22: 4,212,377 km (0.097 R)
• M23: 4,450,237 km (0.075 R)
• M24: 4,759,307 km (0.112 R)
• M25: 5,098,295 km (0.115 R)
• M26: 5,305,339 km (0.08 R)
• M27: 5,515,374 km (0.109 R)
• M28: 5,751,739 km (0.109 R)
• M29: 6,332,927 km (0.115 R)
• M30: 7,342,563 km (0.041 R)
• M31: 7,707,731 km (0.075 R)
• M32: 7,786,719 km (0.069 R)
• M33: 7,866,006 km (0.103 R)
• M34: 8,078,883 km (0.108 R)
• M35: 8,482,947 km (0.098 R)
• M36: 8,646,458 km (0.032 R)
• M37: 8,755,963 km (0.049 R)
• M38: 8,838,541 km (0.096 R)
• M39: 9,564,241 km (0.105 R)
• M40: 9,649,212 km (0.087 R)
• M41: 9,734,333 km (0.104 R)
• M42: 10,020,215 km (0.048 R)
• M43: 10,454,348 km (0.065 R)
• M44: 10,512,542 km (0.116 R)
• M45: 10,688,319 km (0.107 R)
• M46: 11,310,796 km (0.113 R)
• M47: 11,884,055 km (0.097 R)
• M48: 12,067,163 km (0.057 R)
• M49: 12,528,672 km (0.118 R)
• M50: 12,996,165 km (0.036 R)
• M51: 13,787,837 km (0.1 R)
• M52: 13,851,865 km (0.097 R)
• M53: 15,218,891 km (0.048 R)
• M54: 15,584,059 km (0.028 R)
• M55: 16,086,558 km (0.091 R)
• M56: 16,526,526 km (0.045 R)
• M57: 16,594,443 km (0.079 R)
• M58: 16,970,233 km (0.101 R)
• M59: 17,314,308 km (0.107 R)
• M60: 17,417,979 km (0.038 R)
• M61: 17,869,615 km (0.061 R)
• M62: 18,149,513 km (0.083 R)
• M63: 18,325,141 km (0.028 R)
• M64: 18,395,452 km (0.084 R)
• M65: 18,571,977 km (0.073 R)
• M66: 19,068,941 km (0.099 R)
• M67: 19,140,300 km (0.113 R)
• M68: 19,247,561 km (0.069 R)
• M69: 19,390,726 km (0.049 R)
• M70: 20,586,013 km (0.093 R)
• M71: 20,989,778 km (0.105 R)
• M72: 21,100,331 km (0.114 R)
• M73: 21,396,086 km (0.086 R)
• M74: 21,842,336 km (0.064 R)
• M75: 22,029,184 km (0.071 R)
• M76: 22,593,018 km (0.05 R)
• M77: 23,085,345 km (0.089 R)
• M78: 23,275,783 km (0.106 R)
• M79: 23,849,790 km (0.087 R)
• M80: 24,544,971 km (0.045 R)
• M81: 24,739,149 km (0.047 R)
• M82: 24,933,926 km (0.109 R)
• M83: 25,051,061 km (0.082 R)
• M84: 25,285,930 km (0.106 R)
• M85: 26,590,124 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.4

Radius: 11.4

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.26 AU - 5.3 AU

Year: 6856 Days

Day: 7.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 49,076,301 km

• M1: 151,991 km (0.069 R)
• M2: 272,717 km (0.065 R)
• M3: 462,557 km (0.089 R)
• M4: 617,390 km (0.084 R)
• M5: 938,278 km (0.059 R)
• M6: 1,248,843 km (0.096 R)
• M7: 1,525,898 km (0.104 R)
• M8: 1,767,499 km (0.044 R)
• M9: 2,153,312 km (0.109 R)
• M10: 2,272,840 km (0.069 R)
• M11: 2,565,603 km (0.106 R)
• M12: 2,660,598 km (0.068 R)
• M13: 2,936,457 km (0.078 R)
• M14: 3,019,334 km (0.085 R)
• M15: 3,221,740 km (0.116 R)
• M16: 3,376,424 km (0.101 R)
• M17: 3,800,983 km (0.071 R)
• M18: 4,093,746 km (0.106 R)
• M19: 4,469,835 km (0.073 R)
• M20: 4,681,665 km (0.114 R)
• M21: 4,995,522 km (0.095 R)
• M22: 5,377,295 km (0.106 R)
• M23: 5,499,816 km (0.116 R)
• M24: 5,644,028 km (0.108 R)
• M25: 6,041,660 km (0.099 R)
• M26: 6,254,687 km (0.107 R)
• M27: 6,513,491 km (0.12 R)
• M28: 6,732,054 km (0.116 R)
• M29: 7,019,581 km (0.103 R)
• M30: 7,356,625 km (0.091 R)
• M31: 7,447,281 km (0.075 R)
• M32: 7,561,275 km (0.119 R)
• M33: 8,304,477 km (0.114 R)
• M34: 8,732,776 km (0.113 R)
• M35: 8,853,052 km (0.072 R)
• M36: 9,315,160 km (0.046 R)
• M37: 9,710,248 km (0.101 R)
• M38: 9,884,979 km (0.11 R)
• M39: 10,954,753 km (0.054 R)
• M40: 11,608,795 km (0.045 R)
• M41: 11,688,231 km (0.083 R)
• M42: 11,980,695 km (0.079 R)
• M43: 12,087,807 km (0.116 R)
• M44: 12,168,141 km (0.084 R)
• M45: 12,627,407 km (0.077 R)
• M46: 12,955,026 km (0.119 R)
• M47: 13,396,190 km (0.062 R)
• M48: 13,702,417 km (0.093 R)
• M49: 13,982,763 km (0.097 R)
• M50: 14,663,434 km (0.086 R)
• M51: 15,180,893 km (0.044 R)
• M52: 15,354,875 km (0.107 R)
• M53: 15,675,314 km (0.069 R)
• M54: 16,411,784 km (0.081 R)
• M55: 17,280,349 km (0.104 R)
• M56: 17,644,171 km (0.109 R)
• M57: 17,888,165 km (0.097 R)
• M58: 18,441,079 km (0.117 R)
• M59: 18,564,647 km (0.038 R)
• M60: 18,999,678 km (0.082 R)
• M61: 19,155,858 km (0.091 R)
• M62: 19,784,618 km (0.12 R)
• M63: 20,228,923 km (0.087 R)
• M64: 21,224,348 km (0.042 R)
• M65: 21,386,362 km (0.037 R)
• M66: 21,809,724 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.6

Radius: 5.7

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 5.35 AU - 8.55 AU

Year: 12020 Days

Day: 19.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,076,301 km

• M1: 124,316 km (0.078 R)
• M2: 238,459 km (0.071 R)
• M3: 460,761 km (0.119 R)
• M4: 634,594 km (0.111 R)
• M5: 2,148,525 km (0.107 R)
• M6: 2,507,260 km (0.03 R)
• M7: 2,898,908 km (0.095 R)
• M8: 3,116,572 km (0.041 R)
• M9: 3,354,583 km (0.054 R)
• M10: 3,445,389 km (0.098 R)
• M11: 5,407,365 km (0.074 R)
• M12: 6,466,817 km (0.095 R)
• M13: 7,273,000 km (0.091 R)
• M14: 7,351,389 km (0.067 R)
• M15: 7,548,709 km (0.044 R)
• M16: 7,867,950 km (0.089 R)
• M17: 10,092,321 km (0.026 R)
• M18: 10,399,745 km (0.081 R)
• M19: 10,488,157 km (0.119 R)
• M20: 12,730,928 km (0.118 R)
• M21: 13,470,091 km (0.115 R)
• M22: 13,905,720 km (0.102 R)
• M23: 14,370,521 km (0.109 R)
• M24: 14,617,208 km (0.048 R)
• M25: 16,434,224 km (0.094 R)
• M26: 16,873,593 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 508.9

Radius: 7.3

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.76 AU - 8.14 AU

Year: 12020 Days

Day: 19.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 49,076,301 km

• M1: 171,888 km (0.087 R)
• M2: 411,544 km (0.119 R)
• M3: 482,603 km (0.05 R)
• M4: 605,871 km (0.102 R)
• M5: 739,911 km (0.066 R)
• M6: 1,241,064 km (0.043 R)
• M7: 1,457,682 km (0.112 R)
• M8: 1,616,704 km (0.118 R)
• M9: 1,663,080 km (0.108 R)
• M10: 1,781,262 km (0.067 R)
• M11: 2,127,132 km (0.118 R)
• M12: 2,360,355 km (0.101 R)
• M13: 2,684,384 km (0.098 R)
• M14: 2,767,561 km (0.028 R)
• M15: 2,879,909 km (0.106 R)
• M16: 2,965,030 km (0.12 R)
• M17: 3,196,458 km (0.107 R)
• M18: 3,646,149 km (0.059 R)
• M19: 4,670,745 km (0.035 R)
• M20: 5,353,809 km (0.109 R)
• M21: 5,922,430 km (0.088 R)
• M22: 5,994,835 km (0.118 R)
• M23: 6,177,345 km (0.059 R)
• M24: 6,287,599 km (0.059 R)
• M25: 6,660,097 km (0.037 R)
• M26: 6,811,041 km (0.095 R)
• M27: 6,963,332 km (0.056 R)
• M28: 7,701,298 km (0.099 R)
• M29: 7,859,872 km (0.092 R)
• M30: 8,220,553 km (0.109 R)
• M31: 8,751,027 km (0.084 R)
• M32: 9,041,396 km (0.111 R)
• M33: 9,461,617 km (0.086 R)
• M34: 10,103,691 km (0.059 R)
• M35: 10,277,374 km (0.025 R)
• M36: 11,701,695 km (0.084 R)
• M37: 12,067,312 km (0.051 R)
• M38: 12,205,541 km (0.041 R)
• M39: 13,281,598 km (0.055 R)
• M40: 14,144,778 km (0.072 R)
• M41: 14,583,249 km (0.046 R)
• M42: 14,927,324 km (0.106 R)
• M43: 16,026,121 km (0.117 R)
• M44: 16,228,676 km (0.116 R)
• M45: 16,279,390 km (0.084 R)
• M46: 17,357,841 km (0.077 R)
• M47: 17,409,751 km (0.112 R)
• M48: 17,461,811 km (0.071 R)
• M49: 19,421,244 km (0.071 R)
• M50: 20,126,000 km (0.084 R)
• M51: 20,180,603 km (0.115 R)
• M52: 20,399,315 km (0.118 R)
• M53: 21,784,442 km (0.1 R)
• M54: 22,459,876 km (0.115 R)
• M55: 24,936,619 km (0.09 R)
• M56: 25,702,261 km (0.094 R)
• M57: 26,535,371 km (0.048 R)
• M58: 27,559,069 km (0.1 R)
• M59: 28,718,303 km (0.094 R)
• M60: 28,779,788 km (0.088 R)
• M61: 29,582,680 km (0.1 R)
• M62: 29,768,929 km (0.073 R)
• M63: 30,832,121 km (0.1 R)
• M64: 31,021,063 km (0.111 R)
• M65: 31,210,454 km (0.042 R)
• M66: 31,907,879 km (0.114 R)
• M67: 32,035,187 km (0.084 R)
• M68: 32,162,645 km (0.092 R)
• M69: 32,418,307 km (0.113 R)
• M70: 33,706,046 km (0.084 R)
• M71: 34,682,920 km (0.078 R)
• M72: 35,142,036 km (0.114 R)
• M73: 36,198,795 km (0.112 R)
• M74: 36,531,052 km (0.084 R)
• M75: 37,065,116 km (0.073 R)
• M76: 37,668,744 km (0.112 R)
• M77: 37,803,382 km (0.119 R)
• M78: 38,682,269 km (0.086 R)
• M79: 39,226,357 km (0.12 R)
• M80: 39,567,889 km (0.063 R)
• M81: 39,841,653 km (0.108 R)
• M82: 39,978,834 km (0.081 R)
• M83: 41,497,851 km (0.114 R)
• M84: 42,124,666 km (0.1 R)
• M85: 42,334,253 km (0.094 R)
• M86: 42,404,264 km (0.088 R)
• M87: 42,824,784 km (0.101 R)
• M88: 43,246,800 km (0.103 R)
• M89: 45,305,566 km (0.1 R)
• M90: 45,879,124 km (0.069 R)
• M91: 45,950,931 km (0.1 R)
• M92: 46,094,844 km (0.115 R)
• M93: 47,105,826 km (0.082 R)
• M94: 47,468,751 km (0.04 R)
• M95: 48,782,669 km (0.087 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 11,058 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit