Question

Define 1 light year.​

Answer 1

Answer:

• The light-year, alternatively spelled lightyear, is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers or 5.88 trillion miles. As defined by the International Astronomical Union, a light-year is the distance that light travels in vacuum in one Julian year.

Explanation:

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Answer 2

Answer:

Light year is the unit of distance. ... So 10 trillion km is the distance covered by light in one year. Light year is a unit of distance not time. A light year is the distance traveled by light in 365.25 days.

Explanation:

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