How far away is a light year?

Multiply the number of seconds in one year by the number of miles or kilometers that light travels in one second, and there you have it: one light-year. read more

The light-year is a unit of length used to express astronomical distances and measures about 9. 5 trillion kilometres or 5. 9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365. 25 days). read more

A light year is a standard of measurement used by astronomers to describe huge distances in the Universe. The nearest star is 4. 22 light years away. The center of the Milky Way is about 26,000 light years away. read more

The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). read more