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A light year is the distance light travels in a year. That is roughly 6,000,000,000,000 miles (six trillion miles). Thus such a unit is used only to measure the largest distances, those between stars and galaxies.

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Q: How is light years used in science measurement?
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Continue Learning about Astronomy

What units of measurement are used in space?

It might be "the speed of light", not sure though


What unit of measurement is used in knowing the distance between milkyway galaxy and other galaxies?

the light year


How much is a light mile?

I am not aware that any unit of measurement called a "light mile" has ever been used. It could conceivably be a unit of time: the amount of time required for light to travel one mile, about 1/186,000th of a second.


What is the unit of measurement of distance of stars form the earth?

There are several popular units of measurements to measure these large distances. One is the light year, which is the distance light can travel in one year (it travels 300,000 m/s). A light year is equal to a little less than 10^16 meters. Another unit of measurement is the parsec, or "parallax second" which is defined by the distance of an object that shifts one arcsecond in the sky per user movement of 1 A.U. (astronomical unit) It is equal to 3.26 light years or about 3x10^16. A final unit of measurement that is widely used in the solar system, such as from Earth to our star, the Sun, is the astronomical unit which is the distance from the Earth to the sun. One A.U. is approximately 1.5 x 10^8 km.


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.

Related questions

What is a measurement used in science?

Heat.


What unit of measurement is used for the radius?

Any measure of length, such as meters, centimeters, or light-years.


What is the measurement used to measure distance in space?

Distance in space is measured in 'light years' or in 'scientific notation'


What is used in physical science for the measurement of time?

seconds!


How is a light year used in science measurement?

When measuring distances in space, the distances are so huge that using kilometres and miles becomes pointless. A number of other measuring systems are used. A light year is the distance that light travels in a year. It is about 9,460,730,472,581 kilometres or about 5,878,630,000,000 miles. After the sun the nearest star is over 4 light years away. Many of the stars you see in the sky are hundreds of light years away and much more. So it is a lot easier to say 100 light years than 587,863,000,000,000 miles.


Do you measure distance from stars in light years?

Yes. At least, that is one measurement that is often used. Parsecs are also often used in astronomy.


What is the unit of measurement used to find the mass of an atom?

Ask your science teacher


What is the type of measurement used in science?

measure liquids , measure length,.....


What is the temperature you use in Earth Science?

Since the metric system is the system of measurement used in all sciences, Celsius is usually the form of temperature measurement used.


What is the SI measurement of light?

There is no "measurement of light". The units used depend on what you want to measure: its speed, frequency, wavelength, energy per photon, etc.


What is system of measurement used in science?

The Metric system ex: centermeters, milliliters , and grams


How do you say 54 x 75 to feet and inches?

It depends on what units of measurement were used for 54 and 75. Miles, centimetres, yards, light years, etc.