Parsec (pc)

About Parsec (pc)

Parsec (pc) logo

One parsec (parallax angle of 1 arcsec) is the distance at which one astronomical unit subtends an angle of one arcsecond.

A parsec is equal to about 3.26 ly (31 trillion kilometres or 19 trillion miles) in length. and it is about 2.0626×10^5 AU.

The nearest star, Proxima Centauri, is about 1.3 parsecs (4.2 light-years) from the Sun. Most of the stars visible to the unaided eye in the nighttime sky are within 500 parsecs of the Sun.


A parsec is the distance from the Sun to an astronomical object that has a parallax angle of one arcsecond (the diagram is not to scale).

NOTE: Above information has been taken from wikipedia and/or official websites of topics.

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