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This Stellar Distance Using Parallax, Cosmology and Astronomy instructional video also includes:
As a follow-up to the Khan Academy video on parallax, this video focuses on parallax as it relates to astronomical distance. Sal uses cardinal directions and the seasons to help students orient themselves in the proverbial night sky. After providing a context, he connects parallax to the trigonometric equations necessary to determine a stellar distance. A background in trigonometry would be helpful to comprehend the application of parallax.
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BY-NC-SA: 3.0
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