🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.1

Radius: 12.7

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.62 AU - 1 AU

Year: 471 Days

Day: 10 Hours

Environment

Temp: -146 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 33,064,011 km

• M1: 163,959 km (0.07 R)
• M2: 289,023 km (0.091 R)
• M3: 376,239 km (0.102 R)
• M4: 502,649 km (0.103 R)
• M5: 595,848 km (0.114 R)
• M6: 679,623 km (0.075 R)
• M7: 771,775 km (0.095 R)
• M8: 887,115 km (0.069 R)
• M9: 1,012,778 km (0.118 R)
• M10: 1,096,253 km (0.085 R)
• M11: 1,194,689 km (0.11 R)
• M12: 1,374,505 km (0.064 R)
• M13: 1,459,028 km (0.119 R)
• M14: 1,577,659 km (0.079 R)
• M15: 1,695,093 km (0.054 R)
• M16: 1,781,411 km (0.086 R)
• M17: 1,894,059 km (0.057 R)
• M18: 1,983,817 km (0.053 R)
• M19: 2,095,717 km (0.043 R)
• M20: 2,183,680 km (0.038 R)
• M21: 2,310,090 km (0.094 R)
• M22: 2,433,509 km (0.03 R)
• M23: 2,515,339 km (0.082 R)
• M24: 2,603,601 km (0.105 R)
• M25: 2,687,227 km (0.065 R)
• M26: 2,863,303 km (0.072 R)
• M27: 3,226,826 km (0.097 R)
• M28: 3,329,151 km (0.06 R)
• M29: 3,432,523 km (0.116 R)
• M30: 3,555,642 km (0.105 R)
• M31: 3,642,708 km (0.041 R)
• M32: 3,749,371 km (0.112 R)
• M33: 3,838,083 km (0.082 R)
• M34: 3,940,258 km (0.1 R)
• M35: 4,075,944 km (0.064 R)
• M36: 4,278,948 km (0.116 R)
• M37: 4,371,699 km (0.093 R)
• M38: 4,586,372 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.4

Radius: 9.9

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.15 AU - 1.31 AU

Year: 881 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 33,064,011 km

• M1: 127,607 km (0.089 R)
• M2: 207,343 km (0.096 R)
• M3: 328,218 km (0.112 R)
• M4: 405,261 km (0.119 R)
• M5: 571,314 km (0.112 R)
• M6: 646,861 km (0.112 R)
• M7: 797,057 km (0.087 R)
• M8: 876,793 km (0.077 R)
• M9: 946,506 km (0.098 R)
• M10: 1,031,477 km (0.118 R)
• M11: 1,112,410 km (0.087 R)
• M12: 1,188,705 km (0.077 R)
• M13: 1,310,029 km (0.044 R)
• M14: 1,376,001 km (0.1 R)
• M15: 1,488,648 km (0.097 R)
• M16: 1,565,392 km (0.105 R)
• M17: 1,659,489 km (0.076 R)
• M18: 1,723,367 km (0.119 R)
• M19: 1,936,544 km (0.094 R)
• M20: 2,080,607 km (0.112 R)
• M21: 2,272,541 km (0.071 R)
• M22: 2,711,312 km (0.101 R)
• M23: 2,863,602 km (0.088 R)
• M24: 2,950,519 km (0.039 R)
• M25: 3,156,665 km (0.117 R)
• M26: 3,276,792 km (0.116 R)
• M27: 3,531,707 km (0.111 R)
• M28: 3,625,056 km (0.106 R)
• M29: 3,698,209 km (0.118 R)
• M30: 3,974,516 km (0.042 R)
• M31: 4,246,635 km (0.113 R)
• M32: 4,524,737 km (0.115 R)
• M33: 4,671,792 km (0.112 R)
• M34: 4,740,308 km (0.08 R)
• M35: 4,832,011 km (0.112 R)
• M36: 4,993,876 km (0.115 R)
• M37: 5,110,712 km (0.116 R)
• M38: 5,240,264 km (0.094 R)
• M39: 5,781,659 km (0.104 R)
• M40: 5,966,113 km (0.036 R)
• M41: 6,102,546 km (0.035 R)
• M42: 6,177,494 km (0.084 R)
• M43: 6,403,986 km (0.091 R)
• M44: 6,684,631 km (0.05 R)
• M45: 6,761,824 km (0.1 R)
• M46: 6,943,286 km (0.054 R)
• M47: 7,100,065 km (0.083 R)
• M48: 7,271,205 km (0.103 R)
• M49: 7,510,561 km (0.115 R)
• M50: 7,765,925 km (0.071 R)
• M51: 8,410,093 km (0.027 R)
• M52: 8,507,481 km (0.047 R)
• M53: 8,689,392 km (0.092 R)
• M54: 8,830,164 km (0.098 R)
• M55: 9,028,680 km (0.101 R)
• M56: 9,214,182 km (0.089 R)
• M57: 9,837,107 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.7

Radius: 11.5

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.28 AU - 1.7 AU

Year: 1174 Days

Day: 7.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 33,064,011 km

• M1: 145,110 km (0.097 R)
• M2: 261,048 km (0.117 R)
• M3: 340,335 km (0.085 R)
• M4: 437,723 km (0.101 R)
• M5: 538,104 km (0.071 R)
• M6: 794,664 km (0.096 R)
• M7: 896,690 km (0.103 R)
• M8: 988,094 km (0.085 R)
• M9: 1,111,063 km (0.06 R)
• M10: 1,222,514 km (0.1 R)
• M11: 1,355,506 km (0.084 R)
• M12: 1,557,463 km (0.108 R)
• M13: 1,669,363 km (0.092 R)
• M14: 1,769,593 km (0.079 R)
• M15: 2,067,293 km (0.088 R)
• M16: 2,301,264 km (0.113 R)
• M17: 2,494,844 km (0.081 R)
• M18: 2,716,249 km (0.116 R)
• M19: 2,823,660 km (0.109 R)
• M20: 3,078,126 km (0.07 R)
• M21: 3,517,046 km (0.045 R)
• M22: 3,709,429 km (0.078 R)
• M23: 3,950,132 km (0.081 R)
• M24: 4,046,473 km (0.109 R)
• M25: 4,446,797 km (0.099 R)
• M26: 4,553,909 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.5

Radius: 8.9

Gravity: 10.42 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.58 AU - 2.22 AU

Year: 1691 Days

Day: 14.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 33,064,011 km

• M1: 113,246 km (0.109 R)
• M2: 203,453 km (0.045 R)
• M3: 327,021 km (0.082 R)
• M4: 448,046 km (0.114 R)
• M5: 528,828 km (0.082 R)
• M6: 1,010,384 km (0.05 R)
• M7: 1,129,913 km (0.074 R)
• M8: 1,234,781 km (0.073 R)
• M9: 1,313,170 km (0.106 R)
• M10: 1,495,979 km (0.108 R)
• M11: 1,569,282 km (0.115 R)
• M12: 1,841,400 km (0.117 R)
• M13: 1,954,496 km (0.097 R)
• M14: 2,259,377 km (0.037 R)
• M15: 2,405,384 km (0.076 R)
• M16: 2,554,384 km (0.033 R)
• M17: 2,642,796 km (0.11 R)
• M18: 2,914,167 km (0.112 R)
• M19: 3,046,710 km (0.036 R)
• M20: 3,208,276 km (0.074 R)
• M21: 3,638,819 km (0.072 R)
• M22: 3,853,791 km (0.112 R)
• M23: 3,970,178 km (0.114 R)
• M24: 4,146,853 km (0.092 R)
• M25: 4,251,123 km (0.099 R)
• M26: 4,311,111 km (0.078 R)
• M27: 4,477,614 km (0.106 R)
• M28: 4,848,317 km (0.041 R)
• M29: 5,325,535 km (0.038 R)
• M30: 5,504,454 km (0.092 R)
• M31: 5,602,739 km (0.08 R)
• M32: 5,751,440 km (0.108 R)
• M33: 5,851,222 km (0.095 R)
• M34: 6,103,444 km (0.108 R)
• M35: 6,740,581 km (0.109 R)
• M36: 6,881,053 km (0.066 R)
• M37: 7,326,556 km (0.045 R)
• M38: 7,434,865 km (0.076 R)
• M39: 7,873,635 km (0.097 R)
• M40: 8,040,287 km (0.073 R)
• M41: 8,264,385 km (0.111 R)
• M42: 9,025,988 km (0.086 R)
• M43: 9,533,124 km (0.09 R)
• M44: 9,651,606 km (0.038 R)
• M45: 9,830,076 km (0.104 R)
• M46: 9,989,547 km (0.081 R)
• M47: 10,270,791 km (0.113 R)
• M48: 10,392,265 km (0.103 R)
• M49: 10,738,584 km (0.08 R)
• M50: 11,317,528 km (0.038 R)
• M51: 11,380,209 km (0.111 R)
• M52: 11,505,722 km (0.048 R)
• M53: 11,589,796 km (0.115 R)
• M54: 12,204,793 km (0.116 R)
• M55: 12,419,316 km (0.1 R)
• M56: 12,678,420 km (0.111 R)
• M57: 12,895,785 km (0.109 R)
• M58: 13,114,348 km (0.093 R)
• M59: 13,224,003 km (0.089 R)
• M60: 13,378,238 km (0.105 R)
• M61: 13,555,063 km (0.052 R)
• M62: 13,621,634 km (0.105 R)
• M63: 13,844,236 km (0.093 R)
• M64: 14,678,244 km (0.059 R)
• M65: 14,883,642 km (0.099 R)
• M66: 14,952,307 km (0.112 R)
• M67: 15,089,937 km (0.071 R)
• M68: 15,250,905 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.3

Radius: 10

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.06 AU - 3.04 AU

Year: 2629 Days

Day: 11.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 33,064,011 km

• M1: 129,701 km (0.111 R)
• M2: 348,264 km (0.054 R)
• M3: 445,203 km (0.057 R)
• M4: 553,063 km (0.045 R)
• M5: 680,222 km (0.06 R)
• M6: 922,570 km (0.044 R)
• M7: 998,566 km (0.029 R)
• M8: 1,122,582 km (0.104 R)
• M9: 1,324,540 km (0.096 R)
• M10: 1,603,839 km (0.093 R)
• M11: 1,683,425 km (0.078 R)
• M12: 2,000,572 km (0.086 R)
• M13: 2,321,909 km (0.064 R)
• M14: 2,834,431 km (0.055 R)
• M15: 2,980,289 km (0.12 R)
• M16: 3,432,972 km (0.116 R)
• M17: 3,623,560 km (0.11 R)
• M18: 3,871,443 km (0.109 R)
• M19: 4,069,960 km (0.084 R)
• M20: 4,272,066 km (0.069 R)
• M21: 4,364,967 km (0.08 R)
• M22: 4,439,766 km (0.087 R)
• M23: 4,724,301 km (0.097 R)
• M24: 4,839,641 km (0.103 R)
• M25: 5,756,077 km (0.108 R)
• M26: 5,900,140 km (0.065 R)
• M27: 6,213,099 km (0.086 R)
• M28: 6,488,658 km (0.066 R)
• M29: 6,552,836 km (0.045 R)
• M30: 6,811,789 km (0.117 R)
• M31: 6,942,388 km (0.116 R)
• M32: 7,317,281 km (0.114 R)
• M33: 7,563,369 km (0.089 R)
• M34: 7,789,412 km (0.073 R)
• M35: 7,857,778 km (0.048 R)
• M36: 8,248,378 km (0.074 R)
• M37: 8,834,353 km (0.116 R)
• M38: 9,216,426 km (0.076 R)
• M39: 9,288,681 km (0.108 R)
• M40: 9,458,026 km (0.119 R)
• M41: 9,726,255 km (0.116 R)
• M42: 10,096,061 km (0.104 R)
• M43: 10,220,227 km (0.096 R)
• M44: 10,571,034 km (0.081 R)
• M45: 10,747,859 km (0.105 R)
• M46: 11,002,175 km (0.106 R)
• M47: 11,181,394 km (0.11 R)
• M48: 11,413,270 km (0.047 R)
• M49: 11,646,793 km (0.102 R)
• M50: 11,881,811 km (0.084 R)
• M51: 11,960,499 km (0.068 R)
• M52: 12,065,816 km (0.084 R)
• M53: 12,277,048 km (0.073 R)
• M54: 13,763,154 km (0.089 R)
• M55: 14,011,636 km (0.058 R)
• M56: 14,401,338 km (0.118 R)
• M57: 14,569,337 km (0.104 R)
• M58: 14,907,428 km (0.071 R)
• M59: 15,362,355 km (0.063 R)
• M60: 15,764,025 km (0.107 R)
• M61: 15,937,260 km (0.051 R)
• M62: 16,024,176 km (0.112 R)
• M63: 16,314,845 km (0.09 R)
• M64: 16,754,064 km (0.065 R)
• M65: 16,930,889 km (0.101 R)
• M66: 17,078,691 km (0.111 R)
• M67: 17,256,713 km (0.106 R)
• M68: 17,944,564 km (0.115 R)
• M69: 18,064,990 km (0.039 R)
• M70: 18,519,468 km (0.111 R)
• M71: 18,916,352 km (0.072 R)
• M72: 19,161,991 km (0.084 R)
• M73: 20,123,906 km (0.118 R)
• M74: 20,374,632 km (0.071 R)
• M75: 20,531,859 km (0.074 R)
• M76: 20,847,660 km (0.107 R)
• M77: 21,037,799 km (0.088 R)
• M78: 21,420,022 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.7

Radius: 11.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 4.36 AU - 5.94 AU

Year: 7546 Days

Day: 5.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 33,064,011 km

• M1: 157,826 km (0.098 R)
• M2: 244,293 km (0.103 R)
• M3: 342,729 km (0.04 R)
• M4: 650,452 km (0.115 R)
• M5: 1,107,623 km (0.101 R)
• M6: 1,280,408 km (0.074 R)
• M7: 1,996,982 km (0.087 R)
• M8: 2,452,657 km (0.05 R)
• M9: 2,751,105 km (0.106 R)
• M10: 2,988,666 km (0.107 R)
• M11: 3,134,524 km (0.075 R)
• M12: 3,383,006 km (0.119 R)
• M13: 3,484,134 km (0.088 R)
• M14: 3,560,729 km (0.089 R)
• M15: 4,005,483 km (0.103 R)
• M16: 4,193,827 km (0.03 R)
• M17: 4,330,260 km (0.099 R)
• M18: 4,890,354 km (0.065 R)
• M19: 5,562,946 km (0.084 R)
• M20: 5,712,993 km (0.109 R)
• M21: 5,803,799 km (0.095 R)
• M22: 5,894,904 km (0.088 R)
• M23: 6,833,182 km (0.102 R)
• M24: 6,929,523 km (0.11 R)
• M25: 7,026,462 km (0.083 R)
• M26: 7,156,313 km (0.082 R)
• M27: 9,483,308 km (0.049 R)
• M28: 9,735,231 km (0.078 R)
• M29: 10,135,555 km (0.11 R)
• M30: 10,877,411 km (0.097 R)
• M31: 10,990,208 km (0.073 R)
• M32: 11,141,152 km (0.112 R)
• M33: 12,966,395 km (0.11 R)
• M34: 14,138,345 km (0.119 R)
• M35: 14,591,776 km (0.083 R)
• M36: 15,175,657 km (0.071 R)
• M37: 16,712,326 km (0.079 R)
• M38: 17,896,992 km (0.098 R)
• M39: 18,387,523 km (0.077 R)
• M40: 20,207,980 km (0.092 R)
• M41: 20,625,507 km (0.115 R)
• M42: 21,186,649 km (0.052 R)
• M43: 21,374,693 km (0.115 R)
• M44: 21,469,090 km (0.093 R)
• M45: 22,180,577 km (0.115 R)
• M46: 22,996,484 km (0.074 R)
• M47: 23,335,173 km (0.105 R)
• M48: 24,855,387 km (0.064 R)
• M49: 25,502,398 km (0.113 R)
• M50: 25,602,479 km (0.094 R)
• M51: 27,118,504 km (0.074 R)
• M52: 27,990,510 km (0.057 R)
• M53: 28,197,104 km (0.06 R)
• M54: 28,559,729 km (0.111 R)
• M55: 28,767,671 km (0.055 R)
• M56: 30,343,086 km (0.116 R)
• M57: 30,502,108 km (0.083 R)
• M58: 30,980,971 km (0.096 R)
• M59: 31,248,153 km (0.078 R)
• M60: 31,408,821 km (0.064 R)
• M61: 31,516,083 km (0.07 R)
• M62: 31,730,905 km (0.119 R)
• M63: 32,108,191 km (0.083 R)
• M64: 32,486,823 km (0.057 R)
• M65: 32,703,890 km (0.119 R)
• M66: 33,576,943 km (0.086 R)
• M67: 33,906,357 km (0.078 R)
• M68: 34,071,513 km (0.099 R)
• M69: 34,347,222 km (0.069 R)
• M70: 34,512,977 km (0.087 R)
• M71: 34,845,383 km (0.073 R)
• M72: 35,234,637 km (0.113 R)
• M73: 35,346,087 km (0.086 R)
• M74: 36,918,810 km (0.111 R)
• M75: 37,429,088 km (0.08 R)
• M76: 37,713,623 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.6

Radius: 9

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.57 AU - 6.71 AU

Year: 8648 Days

Day: 10.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 33,064,011 km

• M1: 219,460 km (0.093 R)
• M2: 584,180 km (0.113 R)
• M3: 709,244 km (0.12 R)
• M4: 788,680 km (0.057 R)
• M5: 871,557 km (0.062 R)
• M6: 957,576 km (0.04 R)
• M7: 1,076,805 km (0.045 R)
• M8: 1,217,128 km (0.111 R)
• M9: 1,314,068 km (0.099 R)
• M10: 1,950,158 km (0.059 R)
• M11: 2,084,048 km (0.093 R)
• M12: 2,201,183 km (0.105 R)
• M13: 2,884,247 km (0.097 R)
• M14: 3,103,557 km (0.096 R)
• M15: 3,558,634 km (0.044 R)
• M16: 3,770,465 km (0.112 R)
• M17: 3,865,908 km (0.113 R)
• M18: 4,010,569 km (0.106 R)
• M19: 4,132,492 km (0.112 R)
• M20: 4,305,277 km (0.069 R)
• M21: 4,455,324 km (0.075 R)
• M22: 4,556,302 km (0.093 R)
• M23: 5,072,864 km (0.111 R)
• M24: 5,472,440 km (0.092 R)
• M25: 5,771,935 km (0.105 R)
• M26: 6,076,965 km (0.054 R)
• M27: 6,558,520 km (0.055 R)
• M28: 6,905,887 km (0.081 R)
• M29: 7,468,075 km (0.081 R)
• M30: 7,679,008 km (0.102 R)
• M31: 7,861,368 km (0.101 R)
• M32: 8,168,493 km (0.052 R)
• M33: 8,762,845 km (0.115 R)
• M34: 9,306,334 km (0.095 R)
• M35: 9,598,499 km (0.082 R)
• M36: 10,158,743 km (0.066 R)
• M37: 10,225,463 km (0.097 R)
• M38: 10,459,734 km (0.064 R)
• M39: 10,560,562 km (0.074 R)
• M40: 11,276,388 km (0.094 R)
• M41: 11,832,144 km (0.055 R)
• M42: 12,184,148 km (0.062 R)
• M43: 12,503,839 km (0.076 R)
• M44: 12,898,328 km (0.03 R)
• M45: 13,443,014 km (0.05 R)
• M46: 13,699,724 km (0.084 R)
• M47: 14,442,029 km (0.117 R)
• M48: 14,893,814 km (0.04 R)
• M49: 15,772,552 km (0.1 R)
• M50: 15,927,087 km (0.065 R)
• M51: 16,393,683 km (0.113 R)
• M52: 16,550,312 km (0.084 R)
• M53: 16,825,422 km (0.105 R)
• M54: 17,141,822 km (0.115 R)
• M55: 17,340,488 km (0.055 R)
• M56: 18,345,486 km (0.12 R)
• M57: 18,508,099 km (0.053 R)
• M58: 19,784,169 km (0.057 R)
• M59: 19,950,821 km (0.1 R)
• M60: 20,453,769 km (0.05 R)
• M61: 20,580,179 km (0.093 R)
• M62: 20,918,420 km (0.115 R)
• M63: 21,557,801 km (0.097 R)
• M64: 21,772,325 km (0.09 R)
• M65: 22,073,764 km (0.057 R)
• M66: 22,420,083 km (0.051 R)
• M67: 23,030,443 km (0.101 R)
• M68: 23,690,468 km (0.096 R)
• M69: 23,779,030 km (0.049 R)
• M70: 23,956,304 km (0.08 R)
• M71: 24,446,087 km (0.094 R)
• M72: 24,849,254 km (0.066 R)
• M73: 25,164,456 km (0.104 R)
• M74: 25,526,184 km (0.107 R)
• M75: 26,026,439 km (0.112 R)
• M76: 26,483,909 km (0.091 R)
• M77: 26,897,996 km (0.119 R)
• M78: 27,639,553 km (0.05 R)
• M79: 30,047,480 km (0.104 R)
• M80: 30,191,244 km (0.093 R)
• M81: 30,431,199 km (0.106 R)
• M82: 30,961,673 km (0.101 R)
• M83: 31,203,722 km (0.112 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 17,516 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit