Convert ell to light year
Please provide values below to convert ell [ell] to light year [ly], or Convert light year to ell.
How to Convert Ell to Light Year
1 ell = 1.20815195329024e-16 ly
Example: convert 15 ell to ly:
15 ell = 15 × 1.20815195329024e-16 ly = 1.81222792993536e-15 ly
Ell to Light Year Conversion Table
| ell | light year |
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Ell
The ell is an obsolete unit of length, originally used for measuring cloth. Its length varied in different countries, but it was generally around 45 inches.
History/Origin
The word "ell" is derived from the Latin "ulna," meaning "forearm," as the unit was originally based on the length of the forearm.
Current Use
The ell is no longer in use.
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.