Convert span (cloth) to light year
Please provide values below to convert span (cloth) [span] to light year [ly], or Convert light year to span (cloth).
How to Convert Span (Cloth) to Light Year
1 span = 2.41630390658048e-17 ly
Example: convert 15 span to ly:
15 span = 15 × 2.41630390658048e-17 ly = 3.62445585987071e-16 ly
Span (Cloth) to Light Year Conversion Table
| span (cloth) | light year |
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Span (Cloth)
A span is an obsolete unit of length, typically about 9 inches, based on the distance between the tip of the thumb and the tip of the little finger when the hand is fully extended.
History/Origin
The span has been used as a unit of measurement for thousands of years in many different cultures.
Current Use
The span is no longer a standard unit of measurement.
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.