Question

what is the relation between parsec, light year, astronomical unit​

Answer 1

Answer:

The parsec (symbol: pc) is a unit of length used to measure the large distances to astronomical objects outside the Solar System. One parsec is approximately equal to 31 trillion kilometres (19 trillion miles), or 210,000 astronomical units, and equates to about 3.3 light-years.

Unit of: length/distance

Astronomical units: 2.06265×105 au; 3.26156 ly

Unit system: astronomical units

Imperial & US units: 1.9174×1013 mi