Introductory Astronomy: Positions on the Celestial Sphere

Introductory Astronomy lecture on the celestial sphere and how to start thinking of horizon diagrams. Refers to tutorial 1 (“Position”) from “Lecture Tutorials for Introductory Astronomy”.

Video is intended for students taking astronomy at Westchester Community College. The video is unpolished, except for some audio tweaking.

Image of Earth and video of rotating Earth is from NASA:

Simulations of celestial sphere are from Kevin Lee’s Astronomy Education page at the University of Nebraska – Lincoln:

and

“Lecture Tutorials for Introductory Astronomy” by Prather, et al published by Pearson Higher Ed:

Introductory Astronomy: Positions on the Celestial Sphere