# How do you find out how many AU are in a parsec?

One parsec= 3.26 light years.

#### Explanation:

Light year is the distance traveled by light in one year.Light travels at 300,000 Km per second in vacuum.
One A U is 149597870 kilometers.
Find the value of Light years in kilometers
light year= 9500,000,000,000 kilometers.
divide this by 149597870
answer will be 206264 au,.

May 24, 2016

206264.8 AU

#### Explanation:

From the definition of parsec,

1 parsec = 1/(1 sec in radian) AU

$= \frac{1}{\frac{\pi}{\left(3600\right) \left(180\right)}}$ AU

=206264.8 AU