Convert petameter to astronomical unit
Please provide values below to convert petameter [Pm] to astronomical unit [AU, UA], or Convert astronomical unit to petameter.
How to Convert Petameter to Astronomical Unit
1 Pm = 6684.58712226845 AU, UA
Example: convert 15 Pm to AU, UA:
15 Pm = 15 × 6684.58712226845 AU, UA = 100268.806834027 AU, UA
Petameter to Astronomical Unit Conversion Table
| petameter | astronomical unit |
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Petameter
A petameter is a unit of length in the metric system equal to 10^15 meters.
History/Origin
The prefix "peta-" for 10^15 was adopted by the CGPM (General Conference on Weights and Measures) in 1975.
Current Use
The petameter is used for measuring distances on a galactic scale, such as the size of the Milky Way galaxy.
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.