Question

What is parsec?

Answer 1

• It is a unit of distance used in astronomy, equal to about 3.26 light years (3.086 × 10¹³ kilometres).
• One parsec corresponds to the distance at which the mean radius of the earth's orbit subtends an angle of one second of arc.

Defination :- A parsec was defined as the distance at which one astronomical unit subtends an angle of one arcsecond.
Symbol :- pc