Convert Planck length to astronomical unit
Please provide values below to convert Planck length [l_P] to astronomical unit [AU, UA], or Convert astronomical unit to Planck length.
How to Convert Planck Length to Astronomical Unit
1 l_P = 1.0803997359302e-46 AU, UA
Example: convert 15 l_P to AU, UA:
15 l_P = 15 × 1.0803997359302e-46 AU, UA = 1.6205996038953e-45 AU, UA
Planck Length to Astronomical Unit Conversion Table
| Planck length | astronomical unit |
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Planck Length
The Planck length is the smallest possible unit of length in the universe, approximately 1.6 x 10⁻³⁵ meters.
History/Origin
The Planck length is derived from fundamental physical constants and is named after the physicist Max Planck. It is a fundamental unit in the system of Planck units.
Current Use
The Planck length is a theoretical concept used in quantum gravity and cosmology to describe phenomena at the smallest scales of the universe.
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.