🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.1

Radius: 14.1

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.98 AU - 1.02 AU

Year: 636 Days

Day: 6.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 49,091,958 km

• M1: 189,241 km (0.099 R)
• M2: 278,551 km (0.048 R)
• M3: 376,687 km (0.045 R)
• M4: 467,344 km (0.113 R)
• M5: 564,134 km (0.099 R)
• M6: 683,662 km (0.052 R)
• M7: 803,490 km (0.057 R)
• M8: 894,894 km (0.108 R)
• M9: 1,012,030 km (0.079 R)
• M10: 1,204,263 km (0.084 R)
• M11: 1,353,861 km (0.107 R)
• M12: 1,484,609 km (0.088 R)
• M13: 1,632,861 km (0.055 R)
• M14: 1,759,421 km (0.093 R)
• M15: 1,889,421 km (0.083 R)
• M16: 2,051,286 km (0.063 R)
• M17: 2,366,638 km (0.073 R)
• M18: 2,472,703 km (0.12 R)
• M19: 2,729,413 km (0.078 R)
• M20: 2,857,170 km (0.114 R)
• M21: 3,003,177 km (0.1 R)
• M22: 3,143,500 km (0.057 R)
• M23: 3,586,609 km (0.119 R)
• M24: 3,887,301 km (0.071 R)
• M25: 3,995,460 km (0.076 R)
• M26: 4,214,770 km (0.084 R)
• M27: 4,363,171 km (0.106 R)
• M28: 4,560,641 km (0.103 R)
• M29: 4,684,508 km (0.109 R)
• M30: 4,780,550 km (0.111 R)
• M31: 4,906,361 km (0.038 R)
• M32: 5,191,046 km (0.074 R)
• M33: 5,430,702 km (0.113 R)
• M34: 5,674,247 km (0.116 R)
• M35: 5,817,861 km (0.095 R)
• M36: 6,056,769 km (0.066 R)
• M37: 6,151,016 km (0.114 R)
• M38: 6,362,397 km (0.075 R)
• M39: 6,662,491 km (0.118 R)
• M40: 6,890,628 km (0.112 R)
• M41: 7,000,133 km (0.086 R)
• M42: 7,132,378 km (0.063 R)
• M43: 7,265,370 km (0.029 R)
• M44: 7,410,480 km (0.026 R)
• M45: 7,556,637 km (0.104 R)
• M46: 7,646,994 km (0.096 R)
• M47: 7,760,539 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.6

Radius: 8.2

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.99 AU - 1.53 AU

Year: 899 Days

Day: 7.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 49,091,958 km

• M1: 124,914 km (0.086 R)
• M2: 207,343 km (0.064 R)
• M3: 266,284 km (0.089 R)
• M4: 358,586 km (0.105 R)
• M5: 439,369 km (0.079 R)
• M6: 514,168 km (0.1 R)
• M7: 580,141 km (0.075 R)
• M8: 635,342 km (0.119 R)
• M9: 746,493 km (0.088 R)
• M10: 812,316 km (0.076 R)
• M11: 864,376 km (0.078 R)
• M12: 928,554 km (0.07 R)
• M13: 988,842 km (0.118 R)
• M14: 1,050,476 km (0.088 R)
• M15: 1,125,126 km (0.064 R)
• M16: 1,243,458 km (0.119 R)
• M17: 1,335,161 km (0.091 R)
• M18: 1,429,108 km (0.093 R)
• M19: 1,486,554 km (0.047 R)
• M20: 1,704,069 km (0.093 R)
• M21: 1,827,039 km (0.052 R)
• M22: 1,981,573 km (0.106 R)
• M23: 2,060,411 km (0.069 R)
• M24: 2,154,957 km (0.096 R)
• M25: 2,439,792 km (0.118 R)
• M26: 2,555,580 km (0.111 R)
• M27: 2,641,749 km (0.097 R)
• M28: 2,841,013 km (0.112 R)
• M29: 2,954,708 km (0.085 R)
• M30: 3,128,241 km (0.1 R)
• M31: 3,262,730 km (0.113 R)
• M32: 3,382,109 km (0.038 R)
• M33: 3,695,367 km (0.114 R)
• M34: 3,748,623 km (0.109 R)
• M35: 3,882,514 km (0.05 R)
• M36: 3,936,668 km (0.12 R)
• M37: 4,009,073 km (0.071 R)
• M38: 4,201,456 km (0.12 R)
• M39: 4,331,307 km (0.083 R)
• M40: 4,519,352 km (0.112 R)
• M41: 4,786,982 km (0.078 R)
• M42: 5,049,975 km (0.103 R)
• M43: 5,529,287 km (0.06 R)
• M44: 5,620,841 km (0.118 R)
• M45: 5,805,295 km (0.092 R)
• M46: 5,950,255 km (0.089 R)
• M47: 6,159,393 km (0.104 R)
• M48: 6,275,481 km (0.029 R)
• M49: 6,498,980 km (0.095 R)
• M50: 6,757,785 km (0.069 R)
• M51: 7,063,862 km (0.08 R)
• M52: 7,163,195 km (0.095 R)
• M53: 7,285,267 km (0.105 R)
• M54: 7,509,065 km (0.091 R)
• M55: 7,565,464 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.2

Radius: 10.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.25 AU - 1.53 AU

Year: 1042 Days

Day: 13 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 49,091,958 km

• M1: 136,882 km (0.115 R)
• M2: 234,719 km (0.094 R)
• M3: 354,996 km (0.026 R)
• M4: 444,306 km (0.06 R)
• M5: 552,166 km (0.114 R)
• M6: 631,453 km (0.101 R)
• M7: 740,809 km (0.117 R)
• M8: 862,432 km (0.07 R)
• M9: 940,073 km (0.111 R)
• M10: 1,008,738 km (0.087 R)
• M11: 1,169,855 km (0.048 R)
• M12: 1,269,488 km (0.07 R)
• M13: 1,352,664 km (0.089 R)
• M14: 1,437,785 km (0.116 R)
• M15: 1,538,315 km (0.099 R)
• M16: 1,641,388 km (0.072 R)
• M17: 1,746,854 km (0.114 R)
• M18: 1,883,736 km (0.083 R)
• M19: 2,191,609 km (0.047 R)
• M20: 2,277,029 km (0.098 R)
• M21: 2,419,147 km (0.088 R)
• M22: 2,696,053 km (0.054 R)
• M23: 2,829,943 km (0.065 R)
• M24: 3,139,311 km (0.09 R)
• M25: 3,218,299 km (0.077 R)
• M26: 3,324,813 km (0.096 R)
• M27: 3,414,571 km (0.114 R)
• M28: 3,541,430 km (0.117 R)
• M29: 3,623,859 km (0.117 R)
• M30: 3,716,161 km (0.12 R)
• M31: 3,912,732 km (0.107 R)
• M32: 4,055,299 km (0.098 R)
• M33: 4,189,937 km (0.112 R)
• M34: 4,267,578 km (0.111 R)
• M35: 4,895,441 km (0.101 R)
• M36: 5,080,194 km (0.111 R)
• M37: 5,414,396 km (0.065 R)
• M38: 5,488,447 km (0.098 R)
• M39: 5,745,007 km (0.102 R)
• M40: 5,951,003 km (0.09 R)
• M41: 6,027,448 km (0.087 R)
• M42: 6,606,092 km (0.084 R)
• M43: 6,707,969 km (0.118 R)
• M44: 6,925,035 km (0.065 R)
• M45: 7,307,407 km (0.049 R)
• M46: 7,483,484 km (0.091 R)
• M47: 7,566,212 km (0.094 R)
• M48: 7,828,008 km (0.084 R)
• M49: 7,935,868 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.6

Radius: 13.6

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.44 AU - 3.02 AU

Year: 2868 Days

Day: 6.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 49,091,958 km

• M1: 187,745 km (0.106 R)
• M2: 371,452 km (0.115 R)
• M3: 476,768 km (0.117 R)
• M4: 595,699 km (0.119 R)
• M5: 698,323 km (0.108 R)
• M6: 1,039,107 km (0.082 R)
• M7: 1,124,078 km (0.09 R)
• M8: 1,265,448 km (0.093 R)
• M9: 1,403,677 km (0.1 R)
• M10: 1,518,269 km (0.109 R)
• M11: 1,696,141 km (0.057 R)
• M12: 1,955,244 km (0.079 R)
• M13: 2,238,732 km (0.074 R)
• M14: 2,500,828 km (0.102 R)
• M15: 2,689,171 km (0.057 R)
• M16: 2,821,416 km (0.113 R)
• M17: 3,067,654 km (0.068 R)
• M18: 3,346,953 km (0.103 R)
• M19: 3,437,460 km (0.087 R)
• M20: 3,634,480 km (0.116 R)
• M21: 3,741,144 km (0.079 R)
• M22: 3,998,601 km (0.075 R)
• M23: 4,164,356 km (0.068 R)
• M24: 4,276,106 km (0.082 R)
• M25: 4,646,211 km (0.111 R)
• M26: 4,805,981 km (0.1 R)
• M27: 5,071,517 km (0.097 R)
• M28: 5,191,046 km (0.096 R)
• M29: 5,448,354 km (0.072 R)
• M30: 5,694,293 km (0.107 R)
• M31: 5,834,317 km (0.106 R)
• M32: 6,007,102 km (0.106 R)
• M33: 6,133,662 km (0.075 R)
• M34: 6,567,945 km (0.104 R)
• M35: 6,796,979 km (0.119 R)
• M36: 7,112,182 km (0.099 R)
• M37: 7,483,185 km (0.098 R)
• M38: 7,739,745 km (0.069 R)
• M39: 7,826,063 km (0.032 R)
• M40: 7,981,944 km (0.119 R)
• M41: 8,279,345 km (0.091 R)
• M42: 8,385,260 km (0.078 R)
• M43: 8,473,822 km (0.106 R)
• M44: 8,759,404 km (0.111 R)
• M45: 9,395,045 km (0.068 R)
• M46: 9,523,999 km (0.074 R)
• M47: 9,877,050 km (0.044 R)
• M48: 10,310,136 km (0.084 R)
• M49: 10,557,720 km (0.1 R)
• M50: 10,691,760 km (0.107 R)
• M51: 10,807,249 km (0.04 R)
• M52: 11,058,723 km (0.105 R)
• M53: 11,587,402 km (0.118 R)
• M54: 11,745,527 km (0.12 R)
• M55: 11,884,653 km (0.084 R)
• M56: 12,648,949 km (0.09 R)
• M57: 12,811,861 km (0.059 R)
• M58: 12,996,016 km (0.086 R)
• M59: 13,181,068 km (0.071 R)
• M60: 13,408,457 km (0.111 R)
• M61: 14,098,403 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.8

Radius: 11.4

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.4 AU - 3.76 AU

Year: 4307 Days

Day: 13.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 49,091,958 km

• M1: 148,401 km (0.088 R)
• M2: 245,191 km (0.028 R)
• M3: 366,964 km (0.042 R)
• M4: 516,561 km (0.118 R)
• M5: 689,796 km (0.105 R)
• M6: 836,252 km (0.085 R)
• M7: 981,362 km (0.037 R)
• M8: 1,082,939 km (0.048 R)
• M9: 1,283,849 km (0.097 R)
• M10: 1,526,497 km (0.111 R)
• M11: 1,646,025 km (0.078 R)
• M12: 1,753,287 km (0.079 R)
• M13: 2,089,433 km (0.1 R)
• M14: 2,446,224 km (0.102 R)
• M15: 2,859,115 km (0.09 R)
• M16: 2,951,865 km (0.118 R)
• M17: 3,102,361 km (0.113 R)
• M18: 3,294,145 km (0.044 R)
• M19: 3,729,924 km (0.056 R)
• M20: 4,121,272 km (0.055 R)
• M21: 4,332,504 km (0.08 R)
• M22: 4,461,009 km (0.102 R)
• M23: 4,590,859 km (0.076 R)
• M24: 4,854,152 km (0.119 R)
• M25: 5,032,622 km (0.099 R)
• M26: 5,122,530 km (0.118 R)
• M27: 5,464,960 km (0.09 R)
• M28: 5,580,749 km (0.029 R)
• M29: 5,885,629 km (0.12 R)
• M30: 6,487,461 km (0.096 R)
• M31: 6,561,063 km (0.12 R)
• M32: 6,659,499 km (0.111 R)
• M33: 6,783,366 km (0.041 R)
• M34: 6,958,096 km (0.102 R)
• M35: 7,261,032 km (0.119 R)
• M36: 7,414,070 km (0.057 R)
• M37: 7,879,769 km (0.116 R)
• M38: 8,089,954 km (0.087 R)
• M39: 8,301,784 km (0.091 R)
• M40: 9,030,775 km (0.106 R)
• M41: 9,864,633 km (0.088 R)
• M42: 10,176,545 km (0.106 R)
• M43: 10,262,115 km (0.097 R)
• M44: 10,376,707 km (0.114 R)
• M45: 11,249,610 km (0.049 R)
• M46: 11,844,561 km (0.12 R)
• M47: 12,025,126 km (0.056 R)
• M48: 12,664,058 km (0.046 R)
• M49: 12,910,446 km (0.113 R)
• M50: 13,251,679 km (0.118 R)
• M51: 13,439,125 km (0.089 R)
• M52: 14,102,142 km (0.114 R)
• M53: 14,421,534 km (0.034 R)
• M54: 14,937,647 km (0.096 R)
• M55: 15,132,722 km (0.11 R)
• M56: 15,525,566 km (0.072 R)
• M57: 16,187,537 km (0.071 R)
• M58: 17,198,070 km (0.114 R)
• M59: 17,470,937 km (0.112 R)
• M60: 18,055,565 km (0.036 R)
• M61: 18,576,764 km (0.119 R)
• M62: 19,103,050 km (0.12 R)
• M63: 19,314,880 km (0.069 R)
• M64: 19,776,539 km (0.119 R)
• M65: 19,955,159 km (0.09 R)
• M66: 20,206,035 km (0.116 R)
• M67: 20,313,895 km (0.108 R)
• M68: 20,385,851 km (0.115 R)
• M69: 20,494,011 km (0.115 R)
• M70: 20,602,320 km (0.103 R)
• M71: 20,674,725 km (0.089 R)
• M72: 20,819,685 km (0.067 R)
• M73: 21,220,009 km (0.076 R)
• M74: 21,366,166 km (0.041 R)
• M75: 21,549,424 km (0.116 R)
• M76: 21,622,876 km (0.118 R)
• M77: 22,213,339 km (0.114 R)
• M78: 23,788,605 km (0.113 R)
• M79: 24,436,513 km (0.029 R)
• M80: 25,206,044 km (0.063 R)
• M81: 25,983,654 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.2

Radius: 14.9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.14 AU - 5.62 AU

Year: 7934 Days

Day: 11.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 49,091,958 km

• M1: 188,194 km (0.111 R)
• M2: 287,677 km (0.066 R)
• M3: 385,215 km (0.06 R)
• M4: 846,275 km (0.08 R)
• M5: 1,052,271 km (0.115 R)
• M6: 1,244,505 km (0.089 R)
• M7: 1,372,411 km (0.044 R)
• M8: 1,538,913 km (0.098 R)
• M9: 1,893,161 km (0.103 R)
• M10: 3,776,000 km (0.043 R)
• M11: 4,046,174 km (0.029 R)
• M12: 4,290,018 km (0.101 R)
• M13: 5,761,912 km (0.118 R)
• M14: 6,353,870 km (0.108 R)
• M15: 6,599,959 km (0.114 R)
• M16: 7,716,109 km (0.119 R)
• M17: 7,857,179 km (0.08 R)
• M18: 8,534,259 km (0.12 R)
• M19: 8,638,529 km (0.106 R)
• M20: 9,747,648 km (0.069 R)
• M21: 10,474,843 km (0.111 R)
• M22: 10,586,593 km (0.08 R)
• M23: 10,969,413 km (0.099 R)
• M24: 11,911,431 km (0.099 R)
• M25: 12,215,713 km (0.066 R)
• M26: 12,380,570 km (0.116 R)
• M27: 13,047,328 km (0.081 R)
• M28: 14,118,897 km (0.076 R)
• M29: 14,690,212 km (0.102 R)
• M30: 14,890,673 km (0.101 R)
• M31: 15,168,027 km (0.088 R)
• M32: 15,345,301 km (0.038 R)
• M33: 15,446,878 km (0.078 R)
• M34: 16,242,140 km (0.113 R)
• M35: 16,501,543 km (0.1 R)
• M36: 16,945,699 km (0.043 R)
• M37: 17,393,744 km (0.073 R)
• M38: 17,739,166 km (0.114 R)
• M39: 17,926,014 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 763.8

Radius: 7.1

Gravity: 15.15 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.73 AU - 6.67 AU

Year: 9816 Days

Day: 20.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 49,091,958 km

• M1: 226,940 km (0.102 R)
• M2: 669,301 km (0.08 R)
• M3: 900,430 km (0.054 R)
• M4: 1,708,108 km (0.082 R)
• M5: 2,385,188 km (0.094 R)
• M6: 2,878,413 km (0.055 R)
• M7: 3,020,979 km (0.113 R)
• M8: 4,178,867 km (0.034 R)
• M9: 4,340,433 km (0.104 R)
• M10: 4,973,531 km (0.077 R)
• M11: 6,250,498 km (0.086 R)
• M12: 6,472,801 km (0.094 R)
• M13: 6,622,399 km (0.089 R)
• M14: 6,963,332 km (0.086 R)
• M15: 7,193,713 km (0.119 R)
• M16: 7,504,876 km (0.111 R)
• M17: 7,780,735 km (0.072 R)
• M18: 8,464,696 km (0.119 R)
• M19: 8,834,502 km (0.118 R)
• M20: 9,083,882 km (0.093 R)
• M21: 9,462,514 km (0.071 R)
• M22: 10,191,654 km (0.107 R)
• M23: 10,409,618 km (0.075 R)
• M24: 10,673,060 km (0.099 R)
• M25: 10,805,604 km (0.06 R)
• M26: 11,476,849 km (0.113 R)
• M27: 11,748,968 km (0.114 R)
• M28: 11,977,554 km (0.037 R)
• M29: 12,671,837 km (0.113 R)
• M30: 12,765,336 km (0.107 R)
• M31: 12,953,081 km (0.118 R)
• M32: 13,189,147 km (0.056 R)
• M33: 13,522,002 km (0.057 R)
• M34: 13,905,870 km (0.069 R)
• M35: 14,099,151 km (0.096 R)
• M36: 14,147,620 km (0.12 R)
• M37: 14,293,179 km (0.116 R)
• M38: 14,537,173 km (0.084 R)
• M39: 14,831,731 km (0.116 R)
• M40: 14,979,684 km (0.108 R)
• M41: 15,376,866 km (0.034 R)
• M42: 15,626,694 km (0.12 R)
• M43: 17,936,037 km (0.1 R)
• M44: 18,251,987 km (0.075 R)
• M45: 18,622,841 km (0.115 R)
• M46: 18,729,205 km (0.113 R)
• M47: 19,587,896 km (0.036 R)
• M48: 19,858,818 km (0.057 R)
• M49: 20,022,029 km (0.114 R)
• M50: 20,734,115 km (0.115 R)
• M51: 22,183,270 km (0.081 R)
• M52: 22,296,216 km (0.091 R)
• M53: 23,148,475 km (0.069 R)
• M54: 23,434,806 km (0.085 R)
• M55: 23,549,846 km (0.083 R)
• M56: 24,069,250 km (0.056 R)
• M57: 24,417,664 km (0.085 R)
• M58: 24,534,051 km (0.025 R)
• M59: 24,943,351 km (0.056 R)
• M60: 25,354,745 km (0.054 R)
• M61: 25,827,773 km (0.092 R)
• M62: 26,962,772 km (0.106 R)
• M63: 27,264,212 km (0.093 R)
• M64: 27,445,525 km (0.031 R)
• M65: 27,566,699 km (0.081 R)
• M66: 28,053,042 km (0.082 R)
• M67: 28,664,897 km (0.085 R)
• M68: 28,787,866 km (0.079 R)
• M69: 29,715,223 km (0.119 R)
• M70: 30,967,058 km (0.116 R)
• M71: 32,172,069 km (0.114 R)
• M72: 34,040,696 km (0.058 R)
• M73: 34,693,242 km (0.12 R)
• M74: 35,547,745 km (0.112 R)
• M75: 36,542,122 km (0.095 R)
• M76: 36,608,693 km (0.105 R)
• M77: 37,009,316 km (0.078 R)
• M78: 37,143,207 km (0.092 R)
• M79: 37,210,226 km (0.117 R)
• M80: 37,612,944 km (0.083 R)
• M81: 38,422,867 km (0.067 R)
• M82: 39,511,640 km (0.038 R)
• M83: 39,991,101 km (0.114 R)
• M84: 40,817,629 km (0.1 R)
• M85: 41,441,153 km (0.097 R)
• M86: 41,580,130 km (0.077 R)
• M87: 41,998,106 km (0.095 R)
• M88: 42,067,968 km (0.119 R)
• M89: 42,137,681 km (0.082 R)
• M90: 43,401,334 km (0.058 R)
• M91: 45,749,871 km (0.103 R)
• M92: 46,469,736 km (0.113 R)
• M93: 47,265,896 km (0.118 R)
• M94: 47,993,540 km (0.12 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 19,097 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit