GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To express the distance between the Milky Way galaxy and the Andromeda galaxy, the most appropriate unit of measure is the-
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meter
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kilometer
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light year
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astronomical unit
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Explanation:
Detailed explanation-1: -The nearest spiral galaxy to ours, the Andromeda galaxy, is 2.5 million light-years away. Some of the most distant galaxies we can see are billions of light-years from us.
Detailed explanation-2: -Light-year is the distance light travels in one year. Light zips through interstellar space at 186, 000 miles (300, 000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.
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.
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