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Light Year is a measure of distance.
Kilometres is also a measure of distance.
However, a kilometre is much shorter than a light year.
So if Space/Cosmos was measured in kilometres the numbers would be horrendously large.
1 year light = 9.46 trillion kilometres ( 9.46 x 10^12 km).
The observable universe is at least 1 billion 1,000,000,000 light years ( 1.0 x 10^9) what is beyond we have yet to see.
However, in kilometres the observable universe. is 1. 0 x 10^9 X 9.46 x 10^(12) =
9.46 x 10^(22) km..
As you can see the exponential numbers are becoming very large. (22).
lenpollock
Wiki User
∙ 12y agoLight year is a longer distance than kilometer.
To cover one light year takes about 9,461,000,000,000,000 kilometers, all end to end.
Wiki User
∙ 11y agobecause measuring with kilometers is REALLY difficult in space. and it is also because of the speed of light.
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What is an light year?
The light year is used to measure distances that are greater than our solar system. It is the next form of measurement above the Au, or astronomical unit, or the distance between the Earth and and the sun. It is normally used to measure distances between stars or galaxies. The light year is equivalent to 5,878,625,373,183.61 miles or 9,460,730,472,580.81 km. See the related link for more information.
What is the diameter of Betelgeuse in light years?
Diameters of stars are not usually expressed in light-years. The term "light-year" is used for much larger distances. Its diameter is somewhere around a thousand times the diameter of our Sun, so that would be about 1.4 billion kilometers. Of course, you can convert that to light-years if you like.
How light year is measured?
A light year is a unit of length used in Astronomy to define distance. One light year is equal to just under 6 trillion miles.
Best unit to measure distance to nearby stars?
While lightyears are used in measuring distances between galaxies and suns and the distances to extra solar planets, the measurements inside our solar system (between the planets in our solar system are miles and kilometers. The larger A.U.s (Astronomical Units) or the mean distance from the Earth to the Sun can also be used. An A.U. is equivalent to 149 598 000 kilometers.
Why would a seven segment display be used instead of a light?
To get clear and big image.
Why is the light year used to measure the distance between the stars and us instead of kilometres?
it is so far that kilometers wont work
What is the distance used to calculate light-years?
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.
What do astronomers use to measure distance to stars?
If you refer to the units, both the light-year and the parsec are often used. A light-year is the distance light travels in a year; about 9.5 x 1012 kilometers (9.5 million million kilometers). A parsec is about 3.26 light-years.
Used to measure distance in space equal to the distance light travels in one year?
That is called a light-year, and it is equal to a distance of about 9.5 trillion kilometers.
How is a light year used as a distance unit?
A light year is the distance that light (travelling at approximately 300,000 km/second in a vacuum) goes in one year. It's about 9.46 trillion kilometers. The light year is a convenient unit for distance in outer space because stars are extremely far apart in relation to any measurement on our planet. For example, the nearest star other than our sun is about 4.34 light years, or about 41,000,000,000,000 kilometers. It is important to remember that a light year is not a unit of time. It is a unit of distance.
Is liht year is used to measure time or length?
A light year is used to describe the distance you travel if you travel at the speed of light for one Year. which is equal to equal to just under 10 trillion kilometers (1016 metres, 10 petametres or about 6 trillion miles
Why are light years rather then kilometers used 9to measure astronomical?
because one light year is 9.4605284 × 1012 kilometers or in non scientific notation form. 9,460,730,472,580.8 km. They use light years because the numbers would be far to vast to use km. The closest star to us is 4.3 light years or 4.06802721 × 1013 kilometers.
Which would you measure using meters?
Personally nothing as I would use imperial measures, but meters are used to measure any linear length, eg the length of a table, the width of a table, the distance around a running track, etc.meters can be used to measure smaller things, eg the length of a pencil, but this would be a fraction of a meter and centimeters (hundredths of meters) would be used instead to keep the numbers simple.Similarly, longer distances, like 1500 meters or 10,000 meters (distances run in athletic competitions), could be measured, but to make the numbers simpler, kilometers (1000 meters) would be used.Once astronomical distances are reached, meters or kilometers could be used, but light years are used instead to keep the numbers simpler. A light year is the distance that light travels in 1 year which is approx 9.46 × 1015 meters (another length measured in meters!)
What unit of measure is most often used to describe distances to other stars beyond the sun?
-- "Light Year" for the closer ones -- "Parsec" for the farther ones
What scale is used to measure the universe?
it is either light years or kilometers
What was used to light the jack-o'-lantern instead of a candle?
Candles are used to light jack-o'lantern.
What is an light year?
The light year is used to measure distances that are greater than our solar system. It is the next form of measurement above the Au, or astronomical unit, or the distance between the Earth and and the sun. It is normally used to measure distances between stars or galaxies. The light year is equivalent to 5,878,625,373,183.61 miles or 9,460,730,472,580.81 km. See the related link for more information.
