What is par sec
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Posted by Garry Singh Bhangu 6 years, 11 months ago
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Yogita Ingle 6 years, 11 months ago
The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System. A parsec is defined as the distance at which one astronomical unit subtends an angle of one arcsecond, which corresponds to648000π astronomical units.
One parsec is defined as the distance at which an arc of length one astronomical unit subtends an angle of one second of an arc .
1 parsec = 3.08 x 1016m.
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