🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.6

Radius: 11.3

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.63 AU - 0.65 AU

Year: 341 Days

Day: 12.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 63,638,059 km

• M1: 146,756 km (0.025 R)
• M2: 228,735 km (0.064 R)
• M3: 307,723 km (0.069 R)
• M4: 419,921 km (0.047 R)
• M5: 570,566 km (0.108 R)
• M6: 664,813 km (0.045 R)
• M7: 753,375 km (0.107 R)
• M8: 978,220 km (0.115 R)
• M9: 1,113,008 km (0.119 R)
• M10: 1,268,740 km (0.104 R)
• M11: 1,386,772 km (0.104 R)
• M12: 1,508,545 km (0.108 R)
• M13: 1,586,635 km (0.057 R)
• M14: 1,660,836 km (0.064 R)
• M15: 1,818,362 km (0.093 R)
• M16: 2,101,700 km (0.054 R)
• M17: 2,189,514 km (0.09 R)
• M18: 2,272,691 km (0.092 R)
• M19: 2,473,002 km (0.07 R)
• M20: 2,597,169 km (0.089 R)
• M21: 2,736,444 km (0.07 R)
• M22: 2,813,338 km (0.095 R)
• M23: 3,028,908 km (0.065 R)
• M24: 3,121,958 km (0.104 R)
• M25: 3,393,329 km (0.102 R)
• M26: 3,469,324 km (0.067 R)
• M27: 3,857,979 km (0.095 R)
• M28: 3,930,086 km (0.056 R)
• M29: 4,083,124 km (0.107 R)
• M30: 4,253,217 km (0.094 R)
• M31: 4,342,826 km (0.082 R)
• M32: 4,516,360 km (0.027 R)
• M33: 4,964,256 km (0.056 R)
• M34: 5,201,668 km (0.106 R)
• M35: 5,273,475 km (0.114 R)
• M36: 5,402,278 km (0.116 R)
• M37: 5,581,048 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.2

Radius: 8.2

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.3 AU - 1.82 AU

Year: 1299 Days

Day: 11.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 63,638,059 km

• M1: 107,860 km (0.103 R)
• M2: 240,853 km (0.114 R)
• M3: 308,620 km (0.06 R)
• M4: 421,417 km (0.118 R)
• M5: 485,894 km (0.072 R)
• M6: 641,027 km (0.084 R)
• M7: 796,609 km (0.069 R)
• M8: 873,502 km (0.098 R)
• M9: 935,735 km (0.094 R)
• M10: 1,017,415 km (0.09 R)
• M11: 1,238,521 km (0.118 R)
• M12: 1,315,713 km (0.114 R)
• M13: 1,515,875 km (0.099 R)
• M14: 1,697,487 km (0.107 R)
• M15: 1,834,668 km (0.086 R)
• M16: 1,930,710 km (0.082 R)
• M17: 2,028,547 km (0.092 R)
• M18: 2,877,515 km (0.088 R)
• M19: 3,182,695 km (0.097 R)
• M20: 3,516,597 km (0.114 R)
• M21: 3,664,400 km (0.104 R)
• M22: 3,880,718 km (0.087 R)
• M23: 4,004,885 km (0.118 R)
• M24: 4,072,204 km (0.116 R)
• M25: 4,424,656 km (0.091 R)
• M26: 4,817,650 km (0.111 R)
• M27: 4,920,274 km (0.099 R)
• M28: 5,085,879 km (0.109 R)
• M29: 5,179,976 km (0.064 R)
• M30: 5,274,522 km (0.114 R)
• M31: 5,348,423 km (0.048 R)
• M32: 5,465,409 km (0.047 R)
• M33: 5,604,684 km (0.105 R)
• M34: 5,810,381 km (0.101 R)
• M35: 6,703,780 km (0.087 R)
• M36: 6,829,891 km (0.057 R)
• M37: 7,061,468 km (0.033 R)
• M38: 7,496,499 km (0.067 R)
• M39: 7,723,140 km (0.104 R)
• M40: 7,867,651 km (0.095 R)
• M41: 8,098,032 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.9

Radius: 9.3

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 3.09 AU - 4.21 AU

Year: 4650 Days

Day: 6.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 63,638,059 km

• M1: 125,513 km (0.031 R)
• M2: 183,407 km (0.096 R)
• M3: 283,937 km (0.086 R)
• M4: 429,645 km (0.076 R)
• M5: 487,839 km (0.052 R)
• M6: 704,008 km (0.085 R)
• M7: 848,669 km (0.114 R)
• M8: 1,268,440 km (0.059 R)
• M9: 1,493,136 km (0.074 R)
• M10: 2,118,904 km (0.063 R)
• M11: 2,608,538 km (0.103 R)
• M12: 2,779,528 km (0.098 R)
• M13: 3,233,408 km (0.11 R)
• M14: 4,165,403 km (0.064 R)
• M15: 4,869,111 km (0.096 R)
• M16: 5,151,403 km (0.107 R)
• M17: 5,366,824 km (0.074 R)
• M18: 5,707,608 km (0.076 R)
• M19: 5,930,359 km (0.089 R)
• M20: 6,435,850 km (0.092 R)
• M21: 6,902,595 km (0.088 R)
• M22: 7,219,892 km (0.083 R)
• M23: 7,353,483 km (0.119 R)
• M24: 7,569,054 km (0.105 R)
• M25: 7,759,342 km (0.091 R)
• M26: 8,034,004 km (0.061 R)
• M27: 8,649,300 km (0.067 R)
• M28: 8,876,838 km (0.094 R)
• M29: 9,425,264 km (0.118 R)
• M30: 9,777,268 km (0.111 R)
• M31: 9,984,611 km (0.067 R)
• M32: 10,797,974 km (0.046 R)
• M33: 11,012,348 km (0.084 R)
• M34: 11,570,049 km (0.114 R)
• M35: 11,663,847 km (0.114 R)
• M36: 12,073,446 km (0.045 R)
• M37: 12,168,740 km (0.101 R)
• M38: 12,327,912 km (0.116 R)
• M39: 12,455,818 km (0.106 R)
• M40: 12,874,393 km (0.094 R)
• M41: 12,971,781 km (0.069 R)
• M42: 13,101,782 km (0.089 R)
• M43: 13,560,449 km (0.106 R)
• M44: 14,024,501 km (0.103 R)
• M45: 14,191,452 km (0.095 R)
• M46: 14,359,002 km (0.099 R)
• M47: 14,594,918 km (0.1 R)
• M48: 15,070,340 km (0.095 R)
• M49: 15,207,072 km (0.117 R)
• M50: 15,275,588 km (0.104 R)
• M51: 15,413,069 km (0.09 R)
• M52: 15,932,024 km (0.089 R)
• M53: 16,071,299 km (0.038 R)
• M54: 16,316,191 km (0.115 R)
• M55: 16,421,508 km (0.075 R)
• M56: 16,668,045 km (0.113 R)
• M57: 16,774,110 km (0.088 R)
• M58: 17,522,847 km (0.104 R)
• M59: 18,100,744 km (0.092 R)
• M60: 18,831,679 km (0.115 R)
• M61: 19,721,786 km (0.059 R)
• M62: 19,871,384 km (0.105 R)
• M63: 20,058,980 km (0.111 R)
• M64: 20,209,476 km (0.089 R)
• M65: 20,284,873 km (0.098 R)
• M66: 20,625,358 km (0.085 R)
• M67: 20,701,353 km (0.077 R)
• M68: 20,967,787 km (0.096 R)
• M69: 21,120,527 km (0.04 R)
• M70: 22,277,965 km (0.1 R)
• M71: 22,590,176 km (0.071 R)
• M72: 23,061,110 km (0.111 R)
• M73: 23,179,292 km (0.037 R)
• M74: 23,813,288 km (0.12 R)
• M75: 23,893,024 km (0.109 R)
• M76: 24,573,694 km (0.028 R)
• M77: 24,734,662 km (0.094 R)
• M78: 24,815,444 km (0.093 R)
• M79: 24,936,619 km (0.042 R)
• M80: 26,570,975 km (0.038 R)
• M81: 27,109,677 km (0.114 R)
• M82: 27,568,195 km (0.103 R)
• M83: 27,861,407 km (0.101 R)
• M84: 28,029,405 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.3

Radius: 14.1

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 4.59 AU - 5.41 AU

Year: 7456 Days

Day: 7.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 63,638,059 km

• M1: 354,846 km (0.067 R)
• M2: 470,485 km (0.098 R)
• M3: 839,842 km (0.117 R)
• M4: 978,220 km (0.111 R)
• M5: 1,573,321 km (0.037 R)
• M6: 1,808,189 km (0.032 R)
• M7: 1,930,112 km (0.045 R)
• M8: 2,513,693 km (0.097 R)
• M9: 2,956,652 km (0.108 R)
• M10: 3,836,737 km (0.042 R)
• M11: 4,265,035 km (0.084 R)
• M12: 4,708,892 km (0.119 R)
• M13: 4,850,711 km (0.108 R)
• M14: 5,167,858 km (0.066 R)
• M15: 5,701,474 km (0.102 R)
• M16: 6,097,908 km (0.101 R)
• M17: 7,340,768 km (0.112 R)
• M18: 7,472,563 km (0.085 R)
• M19: 7,605,257 km (0.074 R)
• M20: 8,008,124 km (0.109 R)
• M21: 9,151,650 km (0.12 R)
• M22: 9,329,372 km (0.03 R)
• M23: 9,436,484 km (0.041 R)
• M24: 9,688,257 km (0.097 R)
• M25: 9,978,776 km (0.115 R)
• M26: 10,308,939 km (0.116 R)
• M27: 10,531,092 km (0.102 R)
• M28: 12,052,652 km (0.115 R)
• M29: 12,561,883 km (0.1 R)
• M30: 12,839,088 km (0.077 R)
• M31: 13,318,848 km (0.109 R)
• M32: 13,520,656 km (0.104 R)
• M33: 14,255,032 km (0.074 R)
• M34: 14,627,231 km (0.106 R)
• M35: 15,044,459 km (0.108 R)
• M36: 15,170,421 km (0.089 R)
• M37: 15,508,063 km (0.1 R)
• M38: 15,677,707 km (0.103 R)
• M39: 16,061,875 km (0.069 R)
• M40: 16,276,697 km (0.055 R)
• M41: 16,406,099 km (0.084 R)
• M42: 17,806,784 km (0.049 R)
• M43: 18,837,214 km (0.094 R)
• M44: 19,154,661 km (0.113 R)
• M45: 19,382,499 km (0.065 R)
• M46: 19,611,234 km (0.113 R)
• M47: 19,794,940 km (0.077 R)
• M48: 19,979,095 km (0.081 R)
• M49: 20,256,449 km (0.099 R)
• M50: 20,395,725 km (0.079 R)
• M51: 20,581,825 km (0.08 R)
• M52: 22,377,597 km (0.105 R)
• M53: 22,713,744 km (0.026 R)
• M54: 23,537,430 km (0.098 R)
• M55: 23,732,655 km (0.112 R)
• M56: 23,830,492 km (0.107 R)
• M57: 24,568,458 km (0.052 R)
• M58: 25,463,802 km (0.108 R)
• M59: 26,218,224 km (0.113 R)
• M60: 26,369,916 km (0.102 R)
• M61: 26,471,194 km (0.054 R)
• M62: 26,674,348 km (0.099 R)
• M63: 26,979,826 km (0.095 R)
• M64: 27,491,750 km (0.098 R)
• M65: 27,955,055 km (0.026 R)
• M66: 28,265,470 km (0.051 R)
• M67: 28,994,162 km (0.104 R)
• M68: 29,623,670 km (0.12 R)
• M69: 30,310,773 km (0.094 R)
• M70: 30,576,458 km (0.063 R)
• M71: 31,110,074 km (0.071 R)
• M72: 31,970,411 km (0.091 R)
• M73: 32,295,039 km (0.043 R)
• M74: 32,784,074 km (0.078 R)
• M75: 33,879,430 km (0.094 R)
• M76: 34,044,735 km (0.038 R)
• M77: 34,487,096 km (0.109 R)
• M78: 36,896,669 km (0.116 R)
• M79: 37,692,829 km (0.083 R)
• M80: 37,921,415 km (0.058 R)
• M81: 38,093,153 km (0.09 R)
• M82: 38,437,228 km (0.076 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 840.8

Radius: 7.6

Gravity: 14.56 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.63 AU - 9.73 AU

Year: 15601 Days

Day: 15.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 63,638,059 km

• M1: 143,913 km (0.118 R)
• M2: 304,282 km (0.06 R)
• M3: 366,964 km (0.047 R)
• M4: 435,031 km (0.092 R)
• M5: 666,907 km (0.075 R)
• M6: 865,274 km (0.056 R)
• M7: 1,426,416 km (0.117 R)
• M8: 1,925,025 km (0.073 R)
• M9: 1,987,109 km (0.075 R)
• M10: 2,145,084 km (0.119 R)
• M11: 2,209,561 km (0.105 R)
• M12: 3,032,349 km (0.1 R)
• M13: 3,705,838 km (0.091 R)
• M14: 3,861,719 km (0.059 R)
• M15: 4,799,399 km (0.101 R)
• M16: 5,491,588 km (0.084 R)
• M17: 5,894,605 km (0.069 R)
• M18: 6,214,595 km (0.099 R)
• M19: 6,824,056 km (0.028 R)
• M20: 7,550,653 km (0.105 R)
• M21: 7,649,538 km (0.058 R)
• M22: 8,608,909 km (0.091 R)
• M23: 9,766,647 km (0.08 R)
• M24: 9,820,502 km (0.118 R)
• M25: 10,363,692 km (0.075 R)
• M26: 11,028,505 km (0.09 R)
• M27: 11,253,201 km (0.061 R)
• M28: 12,051,455 km (0.046 R)
• M29: 12,340,927 km (0.106 R)
• M30: 12,632,792 km (0.111 R)
• M31: 14,064,893 km (0.108 R)
• M32: 14,430,959 km (0.116 R)
• M33: 14,615,114 km (0.091 R)
• M34: 14,923,884 km (0.097 R)
• M35: 14,985,817 km (0.083 R)
• M36: 15,172,366 km (0.072 R)
• M37: 16,435,420 km (0.11 R)
• M38: 16,627,803 km (0.11 R)
• M39: 17,863,482 km (0.117 R)
• M40: 18,326,038 km (0.089 R)
• M41: 18,459,031 km (0.061 R)
• M42: 18,592,323 km (0.046 R)
• M43: 19,466,124 km (0.114 R)
• M44: 19,669,577 km (0.105 R)
• M45: 20,559,834 km (0.094 R)
• M46: 21,393,243 km (0.117 R)
• M47: 21,673,440 km (0.117 R)
• M48: 22,806,644 km (0.04 R)
• M49: 24,395,822 km (0.069 R)
• M50: 24,615,282 km (0.069 R)
• M51: 26,319,651 km (0.111 R)
• M52: 26,469,698 km (0.114 R)
• M53: 26,695,142 km (0.062 R)
• M54: 27,985,274 km (0.106 R)
• M55: 28,445,437 km (0.043 R)
• M56: 28,830,801 km (0.114 R)
• M57: 29,217,811 km (0.094 R)
• M58: 31,496,784 km (0.116 R)
• M59: 32,135,567 km (0.118 R)
• M60: 32,215,602 km (0.099 R)
• M61: 33,182,453 km (0.1 R)
• M62: 34,979,573 km (0.077 R)
• M63: 35,144,579 km (0.084 R)
• M64: 37,059,881 km (0.073 R)
• M65: 37,733,969 km (0.116 R)
• M66: 39,780,617 km (0.116 R)
• M67: 40,038,973 km (0.027 R)
• M68: 41,688,139 km (0.036 R)
• M69: 41,950,534 km (0.103 R)
• M70: 42,301,192 km (0.056 R)
• M71: 42,741,009 km (0.12 R)
• M72: 44,694,159 km (0.096 R)
• M73: 45,231,814 km (0.062 R)
• M74: 45,681,505 km (0.073 R)
• M75: 47,495,230 km (0.069 R)
• M76: 47,769,293 km (0.044 R)
• M77: 49,239,990 km (0.083 R)
• M78: 49,795,297 km (0.076 R)
• M79: 49,980,798 km (0.107 R)
• M80: 52,508,404 km (0.108 R)
• M81: 52,886,438 km (0.049 R)
• M82: 53,360,214 km (0.094 R)
• M83: 53,645,048 km (0.075 R)
• M84: 55,557,508 km (0.059 R)
• M85: 56,328,685 km (0.107 R)
• M86: 57,492,107 km (0.054 R)
• M87: 59,842,739 km (0.075 R)
• M88: 59,941,324 km (0.089 R)
• M89: 64,536,073 km (0.118 R)
• M90: 64,738,329 km (0.084 R)
• M91: 64,940,884 km (0.034 R)
• M92: 65,245,167 km (0.096 R)
• M93: 68,622,488 km (0.06 R)
• M94: 68,932,305 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 523.6

Radius: 3.4

Gravity: 45.29 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.19 AU - 10.47 AU

Year: 17497 Days

Day: 23.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 72.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 63,638,059 km

• M1: 52,658 km (0.11 R)
• M2: 115,639 km (0.114 R)
• M3: 340,186 km (0.106 R)
• M4: 513,420 km (0.103 R)
• M5: 774,767 km (0.12 R)
• M6: 953,686 km (0.056 R)
• M7: 1,023,997 km (0.118 R)
• M8: 1,170,005 km (0.076 R)
• M9: 2,330,884 km (0.08 R)
• M10: 2,954,558 km (0.046 R)
• M11: 5,143,773 km (0.087 R)
• M12: 5,350,817 km (0.086 R)
• M13: 6,250,049 km (0.088 R)
• M14: 6,515,436 km (0.096 R)
• M15: 7,057,130 km (0.037 R)
• M16: 7,472,862 km (0.081 R)
• M17: 7,566,361 km (0.081 R)
• M18: 8,767,034 km (0.086 R)
• M19: 9,163,468 km (0.089 R)
• M20: 9,263,549 km (0.071 R)
• M21: 9,515,322 km (0.036 R)
• M22: 10,283,806 km (0.066 R)
• M23: 10,596,765 km (0.047 R)
• M24: 11,770,809 km (0.054 R)
• M25: 12,098,129 km (0.117 R)
• M26: 13,323,635 km (0.111 R)
• M27: 13,893,603 km (0.081 R)
• M28: 13,951,049 km (0.106 R)
• M29: 14,413,306 km (0.052 R)
• M30: 15,234,449 km (0.093 R)
• M31: 15,293,690 km (0.052 R)
• M32: 15,352,930 km (0.12 R)
• M33: 15,890,136 km (0.056 R)
• M34: 16,070,551 km (0.117 R)
• M35: 16,494,212 km (0.058 R)
• M36: 16,982,949 km (0.053 R)
• M37: 17,476,322 km (0.116 R)
• M38: 17,849,420 km (0.045 R)
• M39: 18,603,542 km (0.118 R)
• M40: 19,560,670 km (0.097 R)
• M41: 20,077,829 km (0.039 R)
• M42: 20,403,205 km (0.116 R)
• M43: 21,655,638 km (0.066 R)
• M44: 21,722,209 km (0.038 R)
• M45: 22,594,215 km (0.114 R)
• M46: 23,683,138 km (0.062 R)
• M47: 25,278,151 km (0.059 R)
• M48: 25,418,473 km (0.117 R)
• M49: 25,629,556 km (0.067 R)
• M50: 26,408,063 km (0.117 R)
• M51: 26,979,078 km (0.111 R)
• M52: 27,554,282 km (0.054 R)
• M53: 27,771,050 km (0.102 R)
• M54: 29,820,840 km (0.119 R)
• M55: 30,043,441 km (0.101 R)
• M56: 31,465,369 km (0.094 R)
• M57: 31,540,766 km (0.069 R)
• M58: 31,616,313 km (0.096 R)
• M59: 31,767,407 km (0.038 R)
• M60: 32,985,582 km (0.028 R)
• M61: 33,986,542 km (0.112 R)
• M62: 34,219,017 km (0.075 R)
• M63: 35,467,411 km (0.099 R)
• M64: 37,367,753 km (0.109 R)
• M65: 39,626,232 km (0.074 R)
• M66: 39,789,294 km (0.086 R)
• M67: 40,443,485 km (0.067 R)
• M68: 41,101,417 km (0.052 R)
• M69: 41,349,001 km (0.116 R)
• M70: 41,431,579 km (0.058 R)
• M71: 42,344,276 km (0.068 R)
• M72: 42,761,355 km (0.111 R)
• M73: 44,104,893 km (0.109 R)
• M74: 44,273,939 km (0.065 R)
• M75: 45,462,494 km (0.064 R)
• M76: 47,005,895 km (0.074 R)
• M77: 47,437,634 km (0.064 R)
• M78: 47,697,336 km (0.086 R)
• M79: 48,044,403 km (0.048 R)
• M80: 48,479,284 km (0.079 R)
• M81: 48,740,931 km (0.086 R)
• M82: 49,090,392 km (0.085 R)
• M83: 49,791,856 km (0.077 R)
• M84: 50,850,411 km (0.118 R)
• M85: 51,116,096 km (0.099 R)
• M86: 51,293,669 km (0.094 R)
• M87: 53,079,269 km (0.09 R)
• M88: 53,889,491 km (0.106 R)
• M89: 54,070,056 km (0.08 R)
• M90: 55,157,782 km (0.051 R)
• M91: 55,887,072 km (0.082 R)
• M92: 56,069,880 km (0.1 R)
• M93: 56,161,285 km (0.065 R)
• M94: 56,711,206 km (0.073 R)
• M95: 57,723,984 km (0.098 R)
• M96: 58,371,444 km (0.094 R)
• M97: 62,212,518 km (0.102 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 19,004 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit