**1 parsec = 3.26 light years**

**1 light-year = distance travelled by light in 1 year**

$\overline{){\mathbf{speed}}{\mathbf{=}}\frac{\mathbf{distance}}{\mathbf{time}}}$

When doing unit conversions:

*• Put units you need to cancel out on opposite places (*i.e.* if it’s in the numerator then put the conversion factor with the same unit in the denominator)*

*• Always raise the units to the necessary number especially when dealing with volume, area, etc.*

A parsec is an astronomical unit of distance where 1 parsec = 3.26 light years (1 light year equals the distance traveled by light in one year). If the speed of light is 186,000 mi/s, calculate the distance in meters of an object that travels 9.6 parsecs.

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