what is one parsec??
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The parsec is a unit of length used to measure the large distances to astronomical objects outside the Solar System. A parsec is obtained by the use of parallax and trigonometry, and is defined as the distance at which one astronomical unit subtends an angle of one arcsecond, i.e. 1/3600th of a degree
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the parsec is the unit of length used to measure a large distance to astronomical object outside the solar system.
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