. . they are a convenient unit. Another convenient unit is the parsec.
light years
Because Pluto is so far away from the sun that it would only be measered in astronomical units or light time.
Light-years are not a measure of time. Light-years are a measure of distance, the distance that light travels in a year. This measurement is used to measure the distance between stellar objects like galaxies, stars, and sometimes planets.
This cannot be properly answered because light-minutes is a measure of distance not time.On that note, 8.31 light-minutes is a distance of 92,880,403.2 miles. This happens to be the approximate average distance from the earth to the sun.
inside of our solar system, things are relatively close together so light takes minutes and not years to get around. however outside of our solar system, the distances are soo huge that its easier to use light years (distance light travels in a year in a vacuum) any distance can be measured in "light years" and vice versa they are both just describing terms.
With maths and light brightness.... Distance between two points...
light years
Light Years.
Light year or astronomical units
Because Pluto is so far away from the sun that it would only be measered in astronomical units or light time.
usually the space is measured in light years
you use light years, and other units
Meters
Astronomers use the unit of measure "Light Years" to calculate the distance between pretty much anything in the Universe.
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light year
scientists use light-years to measure long distances in space. a light year, (abrviated ly) is the distance light can travel.