The distance light would travel in one year in a perfect vacuum is a light year. It's a subtle distinction, but an important one.
a light year, the speed of light being 186,000 mph
That's the approximate length of a light-year - the distance that light travels in a year.
The metre (meter in the USA) is the base unit of length in the metric system. It is equal to the distance light travels in a vacuum in a time interval of 1/299792458 of a second.
The distance light travels in a year is called light-year
"Light year" is a distance. It's defined as the distance light travels in one year,through vacuum.That's a huge distance compared to the daily experience of human beings ... about5,874,600,000,000,000 miles, or more than 31 thousand round trips to the sun and back.It's used in discussion of the distances between objects in space, and it actuallyturns out to be not a so large a unit at all. The nearest star outside of our solarsystem is about 4.2 light years distant from us, and the nearest galaxy outside ofour Milky Way is about 2.5 million light years distant from us.
a light year, the speed of light being 186,000 mph
That is called a light-year, and it is equal to a distance of about 9.5 trillion kilometers.
No. A light year is a unit of distance, not time. It is the distance light travels in a year.
A light year is the distance light travels in one year and is a measure of distance or length. It equates to about 5.9 trillion miles.
"Light-year" is NOT a unit of time. It is a unit of length or distance - the distance light travels in a year.
Light-year is the distance in this case. It is the distance light travels in a year, and is equal to about 9.5 x 1012 kilometers.
That's the approximate length of a light-year - the distance that light travels in a year.
A light year is a measure of distance, not time. It is the distance light travels in a year.
The metre (meter in the USA) is the base unit of length in the metric system. It is equal to the distance light travels in a vacuum in a time interval of 1/299792458 of a second.
The distance light travels in a year is called light-year
A light year is the distance light travels in a vacuum (such as space) in one year's time. It is equal to 5,878,499,562,554.681 miles or 9,460,528,000,000 kilometers.
One light year away is equal to: 9,461,000,000,000 kilometers 9,461,000,000,000,000 meters 5,879,000,000,000 miles