A parsec is a standard astronomical measurement that is often misunderstood. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A parsec is a unit ...
The parsec is a unit for measuring vast astronomical distances based on the parallax effect.
- a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years ...
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