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How many astronomical unit in 1 micrometer?
The answer is 6.6845871226706E-18.
We assume you are converting between astronomical unit and micrometre.
You can view more details on each measurement unit:
astronomical unit or micrometer
The SI base unit for length is the metre.
1 metre is equal to 6.6845871226706E-12 astronomical unit, or 1000000 micrometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between astronomical units and micrometres.
Type in your own numbers in the form to convert the units!
1 astronomical unit to micrometer = 1.49597870691E+17 micrometer
2 astronomical unit to micrometer = 2.99195741382E+17 micrometer
3 astronomical unit to micrometer = 4.48793612073E+17 micrometer
4 astronomical unit to micrometer = 5.98391482764E+17 micrometer
5 astronomical unit to micrometer = 7.47989353455E+17 micrometer
6 astronomical unit to micrometer = 8.97587224146E+17 micrometer
7 astronomical unit to micrometer = 1.047185094837E+18 micrometer
8 astronomical unit to micrometer = 1.196782965528E+18 micrometer
9 astronomical unit to micrometer = 1.346380836219E+18 micrometer
10 astronomical unit to micrometer = 1.49597870691E+18 micrometer
You can do the reverse unit conversion from micrometer to astronomical unit, or enter any two units below:
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The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).
The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".
A micrometre (American spelling: micrometer, symbol µm) is an SI unit of length equal to one millionth of a metre, or about a tenth of the size of a droplet of mist or fog. It is also commonly known as a micron, although that term is officially outdated. It can be written in the expanded mathmatical notation (1×10-6 m)
The symbol µ is the "micro sign", which should look identical to the Greek letter mu (?) (the two may or may not look the same, depending on the font). The symbol "um" is sometimes used, when the µ and ? are not available, for example when using a typewriter.
The micrometre is a common unit of measurement for wavelengths of infrared radiation. Some people (especially in astronomy and the semiconductor business) use the old name micron and/or the solitary symbol µ (both of which were official between 1879 and 1967) to denote a micrometre. This practice persists in the face of official discouragement, perhaps to help disambiguate between the unit of measurement and the micrometer, a measuring device.
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