Convert mil to light year
Please provide values below to convert mil [mil, thou] to light year [ly], or Convert light year to mil.
How to Convert Mil to Light Year
1 mil, thou = 2.68478211842275e-21 ly
Example: convert 15 mil, thou to ly:
15 mil, thou = 15 × 2.68478211842275e-21 ly = 4.02717317763413e-20 ly
Mil to Light Year Conversion Table
| mil | light year |
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Mil
A mil, also known as a thou, is a unit of length equal to one-thousandth of an inch.
History/Origin
The mil was introduced in the 19th century as a convenient unit for fine measurements in engineering and manufacturing.
Current Use
The mil is still used in some manufacturing and engineering contexts, particularly in the United States, for specifying the thickness of materials like paper and wire.
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.