astronomical unit | 1 AU | 2 AU | 3 AU | 4 AU | 5 AU | 6 AU | 7 AU | 8 AU | 9 AU | 10 AU | 11 AU | 12 AU | 13 AU | 14 AU | 15 AU | 16 AU | 17 AU | 18 AU | 19 AU | 20 AU | 21 AU | 22 AU | 23 AU | 24 AU | 25 AU | 26 AU | 27 AU | 28 AU | 29 AU | 30 AU | 31 AU | 32 AU | 33 AU | 34 AU | 35 AU | 36 AU | 37 AU | 38 AU | 39 AU | 40 AU | 41 AU | 42 AU | 43 AU | 44 AU | 45 AU | 46 AU | 47 AU | 48 AU | 49 AU | 50 AU | 51 AU | 52 AU | 53 AU | 54 AU | 55 AU | 56 AU | 57 AU | 58 AU | 59 AU | 60 AU | 61 AU | 62 AU | 63 AU | 64 AU | 65 AU | 66 AU | 67 AU | 68 AU | 69 AU | 70 AU | 71 AU | 72 AU | 73 AU | 74 AU | 75 AU | 76 AU | 77 AU | 78 AU | 79 AU | 80 AU | 81 AU | 82 AU | 83 AU | 84 AU | 85 AU | 86 AU | 87 AU | 88 AU | 89 AU | 90 AU | 91 AU | 92 AU | 93 AU | 94 AU | 95 AU | 96 AU | 97 AU | 98 AU | 99 AU | 100 AU |
league | 30,985,269.091009 lea | 61,970,538.182017 lea | 92,955,807.273026 lea | 123,941,076.36403 lea | 154,926,345.45504 lea | 185,911,614.54605 lea | 216,896,883.63706 lea | 247,882,152.72807 lea | 278,867,421.81908 lea | 309,852,690.91009 lea | 340,837,960.00109 lea | 371,823,229.0921 lea | 402,808,498.18311 lea | 433,793,767.27412 lea | 464,779,036.36513 lea | 495,764,305.45614 lea | 526,749,574.54714 lea | 557,734,843.63815 lea | 588,720,112.72916 lea | 619,705,381.82017 lea | 650,690,650.91118 lea | 681,675,920.00219 lea | 712,661,189.0932 lea | 743,646,458.1842 lea | 774,631,727.27521 lea | 805,616,996.36622 lea | 836,602,265.45723 lea | 867,587,534.54824 lea | 898,572,803.63925 lea | 929,558,072.73026 lea | 960,543,341.82126 lea | 991,528,610.91227 lea | 1,022,513,880.0033 lea | 1,053,499,149.0943 lea | 1,084,484,418.1853 lea | 1,115,469,687.2763 lea | 1,146,454,956.3673 lea | 1,177,440,225.4583 lea | 1,208,425,494.5493 lea | 1,239,410,763.6403 lea | 1,270,396,032.7313 lea | 1,301,381,301.8224 lea | 1,332,366,570.9134 lea | 1,363,351,840.0044 lea | 1,394,337,109.0954 lea | 1,425,322,378.1864 lea | 1,456,307,647.2774 lea | 1,487,292,916.3684 lea | 1,518,278,185.4594 lea | 1,549,263,454.5504 lea | 1,580,248,723.6414 lea | 1,611,233,992.7324 lea | 1,642,219,261.8235 lea | 1,673,204,530.9145 lea | 1,704,189,800.0055 lea | 1,735,175,069.0965 lea | 1,766,160,338.1875 lea | 1,797,145,607.2785 lea | 1,828,130,876.3695 lea | 1,859,116,145.4605 lea | 1,890,101,414.5515 lea | 1,921,086,683.6425 lea | 1,952,071,952.7335 lea | 1,983,057,221.8245 lea | 2,014,042,490.9156 lea | 2,045,027,760.0066 lea | 2,076,013,029.0976 lea | 2,106,998,298.1886 lea | 2,137,983,567.2796 lea | 2,168,968,836.3706 lea | 2,199,954,105.4616 lea | 2,230,939,374.5526 lea | 2,261,924,643.6436 lea | 2,292,909,912.7346 lea | 2,323,895,181.8256 lea | 2,354,880,450.9166 lea | 2,385,865,720.0077 lea | 2,416,850,989.0987 lea | 2,447,836,258.1897 lea | 2,478,821,527.2807 lea | 2,509,806,796.3717 lea | 2,540,792,065.4627 lea | 2,571,777,334.5537 lea | 2,602,762,603.6447 lea | 2,633,747,872.7357 lea | 2,664,733,141.8267 lea | 2,695,718,410.9177 lea | 2,726,703,680.0087 lea | 2,757,688,949.0998 lea | 2,788,674,218.1908 lea | 2,819,659,487.2818 lea | 2,850,644,756.3728 lea | 2,881,630,025.4638 lea | 2,912,615,294.5548 lea | 2,943,600,563.6458 lea | 2,974,585,832.7368 lea | 3,005,571,101.8278 lea | 3,036,556,370.9188 lea | 3,067,541,640.0098 lea | 3,098,526,909.1009 lea |
The astronomical unit (symbol: au or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 149 597 870 700 metres (about 150 million kilometres, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
astronomical unit | AU | ≡ 149 597 870 700 m ≈ Distance from Earth to Sun | ≡ 149 597 870 700 m | Science - Astronomy (Length) |
astronomical units | leagues | astronomical units | leagues |
---|---|---|---|
1 | ≡ 30985269.091009 | 4 | ≡ 123941076.36403 |
1.5 | ≡ 46477903.636513 | 4.5 | ≡ 139433710.90954 |
2 | ≡ 61970538.182017 | 5 | ≡ 154926345.45504 |
2.5 | ≡ 77463172.727521 | 5.5 | ≡ 170418980.00055 |
3 | ≡ 92955807.273026 | 6 | ≡ 185911614.54605 |
A league is a unit of length (or, in various regions, area). It was common in Europe and Latin America, but is no longer an official unit in any nation. The word originally meant the distance a person could walk in an hour. Since the Middle Ages, many values have been specified in several countries.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
league | lea | ≡ 3 miles ≡ 15840 feet | ≡4828.032 m | Imperial/US |
leagues | astronomical units | leagues | astronomical units |
---|---|---|---|
1 | ≡ 3.22734005331E-8 | 4 | ≡ 1.290936021324E-7 |
1.5 | ≡ 4.841010079965E-8 | 4.5 | ≡ 1.4523030239895E-7 |
2 | ≡ 6.45468010662E-8 | 5 | ≡ 1.613670026655E-7 |
2.5 | ≡ 8.068350133275E-8 | 5.5 | ≡ 1.7750370293205E-7 |
3 | ≡ 9.68202015993E-8 | 6 | ≡ 1.936404031986E-7 |
astronomical units | leagues |
---|---|
1 | ≡ 30,985,269.091009 |
3.22734005331 × 10-8 | ≡ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |