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Students discover how astronomers used the diameter of the Earth's orbit around the Sun as a baseline for estimating the distance of some stars, and the meaning of "Parsec" and "light year."
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Stellar Parallax Clarification
A short clarification begins where the last video on stellar distance left off. Its intention is to clarify the trigonometry involved in using Parallax to determine stellar distance. The instructor uses the equations from the previous...
2 mins 11th - Higher Ed Science
Stellar Distance Using Parallax
As a follow up to the Kahn Academy video on parallax, this video focuses on parallax as it relates to astronomical distance. Sal uses cardinal directions and the seasons to orient students in the proverbial night sky. After providing a...
12 mins 11th - Higher Ed Science