Convert 18 Light Seconds to Parsecs
How far is 18 light seconds? How long is 18 light seconds in parsecs? 18 light seconds to pc conversion.
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18 Light Seconds ≈
0.00000017488101 Parsecs
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Result in Plain English
18 light seconds is equal to about 175 billionths of a parsec.
In Scientific Notation
18 light seconds
= 1.8 x 101 light seconds
≈ 1.74881 x 10-7 parsecs
Light Seconds
A light second is the distance that light travels in one second. It is exactly 299,792.458 kilometers or about 186,000 miles.
Parsecs
A parsec is a unit of distance used in astronomy. It is exactly 648,000 / Pi astronomical units, or approximately 30.9 trillion kilometers.