Question

define
1 parsec
1 astronomical unit​

Answer 1

Answer:

1 parsec is a unit of length used to measure large distance to astronomical object outside the solar system.

1 astronomical unit is a unit of length, roughly the distance from earth to sun.

Answer 2

Answer:

1 parsec is equals to the distance at which the radius of earths orbit subtnds an angle of 1 sec of arc.

1 astronomcl unit is equal to 149.6 million kilometers.