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 |
smoot | 87,905,670,877.894 smoot | 175,811,341,755.79 smoot | 263,717,012,633.68 smoot | 351,622,683,511.58 smoot | 439,528,354,389.47 smoot | 527,434,025,267.36 smoot | 615,339,696,145.26 smoot | 703,245,367,023.15 smoot | 791,151,037,901.05 smoot | 879,056,708,778.94 smoot | 966,962,379,656.83 smoot | 1,054,868,050,534.7 smoot | 1,142,773,721,412.6 smoot | 1,230,679,392,290.5 smoot | 1,318,585,063,168.4 smoot | 1,406,490,734,046.3 smoot | 1,494,396,404,924.2 smoot | 1,582,302,075,802.1 smoot | 1 670 207 746 680 smoot | 1,758,113,417,557.9 smoot | 1,846,019,088,435.8 smoot | 1,933,924,759,313.7 smoot | 2,021,830,430,191.6 smoot | 2,109,736,101,069.5 smoot | 2,197,641,771,947.3 smoot | 2,285,547,442,825.2 smoot | 2,373,453,113,703.1 smoot | 2 461 358 784 581 smoot | 2,549,264,455,458.9 smoot | 2,637,170,126,336.8 smoot | 2,725,075,797,214.7 smoot | 2,812,981,468,092.6 smoot | 2,900,887,138,970.5 smoot | 2,988,792,809,848.4 smoot | 3,076,698,480,726.3 smoot | 3,164,604,151,604.2 smoot | 3,252,509,822,482.1 smoot | 3 340 415 493 360 smoot | 3,428,321,164,237.9 smoot | 3,516,226,835,115.8 smoot | 3,604,132,505,993.7 smoot | 3,692,038,176,871.5 smoot | 3,779,943,847,749.4 smoot | 3,867,849,518,627.3 smoot | 3,955,755,189,505.2 smoot | 4,043,660,860,383.1 smoot | 4 131 566 531 261 smoot | 4,219,472,202,138.9 smoot | 4,307,377,873,016.8 smoot | 4,395,283,543,894.7 smoot | 4,483,189,214,772.6 smoot | 4,571,094,885,650.5 smoot | 4,659,000,556,528.4 smoot | 4,746,906,227,406.3 smoot | 4,834,811,898,284.2 smoot | 4,922,717,569,162.1 smoot | 5 010 623 240 040 smoot | 5,098,528,910,917.9 smoot | 5,186,434,581,795.7 smoot | 5,274,340,252,673.6 smoot | 5,362,245,923,551.5 smoot | 5,450,151,594,429.4 smoot | 5,538,057,265,307.3 smoot | 5,625,962,936,185.2 smoot | 5,713,868,607,063.1 smoot | 5 801 774 277 941 smoot | 5,889,679,948,818.9 smoot | 5,977,585,619,696.8 smoot | 6,065,491,290,574.7 smoot | 6,153,396,961,452.6 smoot | 6,241,302,632,330.5 smoot | 6,329,208,303,208.4 smoot | 6,417,113,974,086.3 smoot | 6,505,019,644,964.2 smoot | 6 592 925 315 842 smoot | 6,680,830,986,719.9 smoot | 6,768,736,657,597.8 smoot | 6,856,642,328,475.7 smoot | 6,944,547,999,353.6 smoot | 7,032,453,670,231.5 smoot | 7,120,359,341,109.4 smoot | 7,208,265,011,987.3 smoot | 7,296,170,682,865.2 smoot | 7,384,076,353,743.1 smoot | 7 471 982 024 621 smoot | 7,559,887,695,498.9 smoot | 7,647,793,366,376.8 smoot | 7,735,699,037,254.7 smoot | 7,823,604,708,132.6 smoot | 7,911,510,379,010.5 smoot | 7,999,416,049,888.4 smoot | 8,087,321,720,766.2 smoot | 8,175,227,391,644.1 smoot | 8 263 133 062 522 smoot | 8,351,038,733,399.9 smoot | 8,438,944,404,277.8 smoot | 8,526,850,075,155.7 smoot | 8,614,755,746,033.6 smoot | 8,702,661,416,911.5 smoot | 8,790,567,087,789.4 smoot |
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 | smoots | astronomical units | smoots |
---|---|---|---|
1 | ≡ 87905670877.894 | 4 | ≡ 351622683511.58 |
1.5 | ≡ 131858506316.84 | 4.5 | ≡ 395575518950.52 |
2 | ≡ 175811341755.79 | 5 | ≡ 439528354389.47 |
2.5 | ≡ 219764177194.73 | 5.5 | ≡ 483481189828.42 |
3 | ≡ 263717012633.68 | 6 | ≡ 527434025267.36 |
The smoot /ˈsmuːt/ is a nonstandard, humorous unit of length created as part of an MIT fraternity prank.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
smoot | ≡ Height of Oliver R. Smoot. | ≡ 1.7018 m | Other (Length) |
smoots | astronomical units | smoots | astronomical units |
---|---|---|---|
1 | ≡ 1.1375830364676E-11 | 4 | ≡ 4.5503321458706E-11 |
1.5 | ≡ 1.7063745547015E-11 | 4.5 | ≡ 5.1191236641044E-11 |
2 | ≡ 2.2751660729353E-11 | 5 | ≡ 5.6879151823382E-11 |
2.5 | ≡ 2.8439575911691E-11 | 5.5 | ≡ 6.256706700572E-11 |
3 | ≡ 3.4127491094029E-11 | 6 | ≡ 6.8254982188059E-11 |
astronomical units | smoots |
---|---|
1 | ≡ 87,905,670,877.894 |
1.1375830364676 × 10-11 | ≡ 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 …) |