Want this question answered?
The unit of measurement is the "light year".
A candela is a unit of measurement for light sources and light emissions. Light beams projects different color at different wavelengths, and a candela is used to measure the intensity of the light.
You don't use it, it is a unit of measurement.
Nanometres. mX10^-9
You don't use it, it is a unit of measurement.
light-year
micrometer
usually lights are measured in lumens
"light-year"
Light Year is unit for all astronomic distances
unit of measurement
You cannot 'measure' light. However, there is the light-year, a measurement of the distance light can travel in one year. there are many. Lumens, cadlepower, foot candles and candelas. There are probably a few more.