2-1-4 Retrograde Motion
Channel: Andrea Teaches Astro
Date: 2020-10-05

A racetrack is a better analogy than a spirograph when it comes to understanding the motion of the planets. Find out why!

Credits: 
Slides are remixed from "Astronomy Lecture Slides" by Dr. Lauren Woolsey from Grand Rapids Community College (https://www.oercommons.org/authoring/56613-astronomy-lecture-slides?__hub_id=27) CC BY-SA 4.0.
Questions from ClassAction by University of Nebraska Lincoln (https://astro.unl.edu/classaction/) are free for non-profit educational uses.
Images in the slides are attributed on-slide; if not attributed, they belong to OpenStax Astronomy (https://openstax.org/details/books/astronomy), CC - BY 4.0.
Dr. Rebecka Tumblin contributed to the development of these materials.