Parsec Definition, Stars, Black Holes and Galaxies, Cosmology and Astronomy

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This Parsec Definition, Stars, Black Holes and Galaxies, Cosmology and Astronomy instructional video also includes:

What is a parsec? Sal's video explains that a parsec is 3.26 light years and that the word itself can be broken down into "par" (meaning parallax) and "sec" (meaning one arc second). He uses illustrations, diagrams, and trigonometric equations to help viewers understand how the concept of Parsec works in terms of Astronomical Units or light years. Note: Learners will need a solid background in trigonometry to comprehend Sal's explanation fully.

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Concepts

light years, parallax