What is a parsec ?

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What is a parsec ?

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Donna 12 months 1 Answer 253 views Silver 0

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  1. A parsec is a distance of 3.26 light years. As per Wikipedia ” A parsec (symbol: pc) is a unit of length used to measure large distances to objects outside the Solar System. One parsec is the distance at which one astronomical unit subtends an angle of one arc second.A parsec is equal to about 3.26 light-years (31 trillion kilometers or 19 trillion miles) in length. The nearest star, Proxima Centauri, is about 1.3 parsecs from the Sun.Most of the stars visible to the unaided eye in the nighttime sky are within 500 parsecs of the Sun.”

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