Define pasec and light-year
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The parsec 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 to astronomical units & Light Year is a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 million million miles).
Don’t just copy from google.
One light-year is the distance travelled by light in one year in a vacuum.
Parsec is a unit to measure large distance. It is also known as 3.2 light year.
3.2 light year is equivalent to the Parsec. Parsec is unit to measure distance of astronomical bodies of long length.