Convert attometer to astronomical unit
Please provide values below to convert attometer [am] to astronomical unit [AU, UA], or Convert astronomical unit to attometer.
How to Convert Attometer to Astronomical Unit
1 am = 6.68458712226845e-30 AU, UA
Example: convert 15 am to AU, UA:
15 am = 15 × 6.68458712226845e-30 AU, UA = 1.00268806834027e-28 AU, UA
Attometer to Astronomical Unit Conversion Table
| attometer | astronomical unit |
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Attometer
An attometer is a unit of length in the metric system equal to 10^-18 meters.
History/Origin
The prefix "atto-" for 10^-18 was adopted by the CGPM (General Conference on Weights and Measures) in 1964.
Current Use
The attometer is used in high-energy physics to describe the scales relevant to quarks and leptons.
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.