Convert astronomical unit to micrometer
Please provide values below to convert astronomical unit [AU, UA] to micrometer [µm], or Convert micrometer to astronomical unit.
How to Convert Astronomical Unit to Micrometer
1 AU, UA = 1.495978707e+17 µm
Example: convert 15 AU, UA to µm:
15 AU, UA = 15 × 1.495978707e+17 µm = 2.2439680605e+18 µm
Astronomical Unit to Micrometer Conversion Table
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Astronomical Unit
The astronomical unit is a unit of length, now defined as exactly 149,597,870,700 meters. It is approximately the average distance between the Earth and the Sun.
History/Origin
Historically, the astronomical unit was the mean Earth-Sun distance. In 2012, the International Astronomical Union (IAU) redefined it as a fixed constant.
Current Use
The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.
Micrometer
A micrometer, also known as a micron, is a unit of length equal to one-millionth of a meter.
History/Origin
The term "micron" and the symbol µ were officially declared obsolete by the General Conference on Weights and Measures (CGPM) in 1967, and "micrometer" became the official term.
Current Use
The micrometer is a common unit for measuring the wavelength of infrared radiation, as well as the size of biological cells and bacteria. It is also widely used in technology and engineering.