Parsec

by Dominic Ford, Editor

The parsec is a unit of length which is equal to:

\(3.0857 \times 10^{16}\) m

\(3.26\) light years

\(206,264.8\) astronomical units

It is used to measure the very largest structures in the Universe. For example, the centre of the Milky Way galaxy lies at a distance of 8.1 kpc, where one kiloparsec equals one thousand parsecs. The distance to the nearest galaxy of a similar size to our own, the Andromeda Galaxy (M31) is around 780 kpc.

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EST

Color scheme