The Motion of the Zenith

[Play/Download Movie (2 MB)]

One of the dangers of making movies like this is that you may start to receive requests from your students.... This was made in direct response to a request from a student, who wanted a movie to help her see why the right ascension of the zenith for a given observer changes over the course of a day, while the declination does not.

As with many of my movies, there is no narration or sound. It's designed to be used by a lecturer, who will pause it at opportune places to discuss it or ask questions of students.

This work is licensed under a Creative Commons License.

Earth texture by Rick Kohrs.

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