GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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parsec
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Astronomical Units
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Light year
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Kilometers
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Detailed explanation-1: -Parsecs: Many astronomers prefer to use parsecs (abbreviated pc) to measure distance to stars. This is becau se its definition is closely related to a method of measuring the distances between stars. A parsec is the distance at which 1 AU subtends an angle of 1 arcsec.
Detailed explanation-2: -A parsec – a unit of distance equal to about 19 trillion miles (more than 30 trillion km) – is more closely related to how astronomers go about the business of figuring out the size of the universe.
Detailed explanation-3: -Parsec or parallactic second or is a unit of distance. It is defined as the distance at which one AU (astronomical unit) subtends an angle of one arc second, and is equal to 3.26 light years. Or, it is the unit of length which is used to measure the large distances of celestial bodies outside the solar system.