GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Kilometers
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Light Years
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Miles
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Light Seconds
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Detailed explanation-1: -One parsec is 3.26 light years. The origin of this unit of measure is a little more complicated, but it’s related to how astronomers measure widths in the sky. Astronomers use “megaparsecs”-a megaparsec is 1 million parsecs-for intergalactic distances, or the scale of distances between the galaxies.
Detailed explanation-2: -Measuring Space With Parsecs Because space is so big, many astronomers do not like to say how far away things are using miles or kilometers. Instead, we use a measurement that we call a parsec. Remember Alpha Centauri, the closest star? It is 1.347 parsecs, or 41, 560, 000, 000, 000 (or 41.56 trillion) kilometers away.
Detailed explanation-3: -The distance traveled by light in one year. This unit is used to measure distances in space. Light travels 300, 000 km, equivalent to seven and a half laps around the Earth, in one second. Therefore, the distance traveled by light in one year is approximately 9.4605 trillion km.