Convert Roman actus to light year
Please provide values below to convert Roman actus [actus] to light year [ly], or Convert light year to Roman actus.
How to Convert Roman Actus to Light Year
1 actus = 3.7501036630129e-15 ly
Example: convert 15 actus to ly:
15 actus = 15 × 3.7501036630129e-15 ly = 5.62515549451935e-14 ly
Roman Actus to Light Year Conversion Table
| Roman actus | light year |
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Roman Actus
The Roman actus was a unit of length equal to 120 Roman feet, about 35.5 meters.
History/Origin
The actus was a standard unit of land measurement in the Roman Empire.
Current Use
The Roman actus is an obsolete 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.