Convert Planck length to light year
Please provide values below to convert Planck length [l_P] to light year [ly], or Convert light year to Planck length.
How to Convert Planck Length to Light Year
1 l_P = 1.7083828829966e-51 ly
Example: convert 15 l_P to ly:
15 l_P = 15 × 1.7083828829966e-51 ly = 2.5625743244949e-50 ly
Planck Length to Light Year Conversion Table
| Planck length | light year |
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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.
Light Year
A light-year is the distance that light travels in a vacuum in one Julian year.
History/Origin
The concept of the light-year as a unit of distance in astronomy emerged in the mid-19th century. The first recorded use of the term was in a German astronomical publication in 1851.
Current Use
The light-year is used to express distances to stars and other astronomical objects on a galactic and intergalactic scale, especially in popular science and non-specialist contexts.