Convert 420 Light Years to Parsecs
How far is 420 light years? How long is 420 light years in parsecs? 420 ly to pc conversion.
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420 Light Years ≈
128.77259 Parsecs
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Result in Plain English
420 light years is equal to about 129 parsecs.
In Scientific Notation
420 light years
= 4.2 x 102 light years
≈ 1.28773 x 102 parsecs
Light Years
A light year is the distance that light travels in one year. The year used by the International Astronomical Union is 365.25 days. A light year is defined as exactly 9,460,730,472,580.8 kilometers.
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.