What is the persec

1.	What is the persec
Answer» Parsec:It is unit for expressing distances to stars and galaxies, used by professional astronomers. It represents the distance at which the radius of Earth’s orbit subtends an angle of one second of arc. Thus, a star at a distance of one parsec would have a parallax of one second, and the distance of an object in parsecs is the reciprocal of its parallax in seconds of arc.One parsec is equal to about 3.26 light-years (31 trillion km or 19 trillion miles) in length.\xa0

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