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Which of the following is the unit of Astronomical Distance ?
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- metre/sec.
- Sec.
- Para/sec.
- Parsec
- metre/sec.
Correct Option: A
A parsec is a unit of length used to measure large distances to objects outside our 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 in length.
