Dr. Aaron Titus | Department of Physics, High Point University
PHY1050      Astronomy of Stars, Galaxies, and the Cosmos
home | WebAssign | textbook | Course Calendar course calendar

motion of stars


Nightly Motion of Stars (North)

In this lab activity, you will investigate the motion of stars above your northern horizon during the night.

Print the following files: lab-handout.pdf and star-pictures.pdf. You will also need a transparency and marker.

After doing this activity, you should know the paths of stars as they travel around the North Star, Polaris.

Seasonal Changes in the Night Sky (South)

Watch this video that discusses the seasonal changes in the night sky (above the southern horizon). You will find that stars rise 2 hours earlier than they did on the previous month. That is, stars rise about 4 minutes earlier than on the previous night. Though you probably wouldn't notice a difference from night to night, you will notice a difference from month to month.

Since stars rise 2 hours earlier each month, then at a given time of the night, stars in the south will be higher in the sky than they were at the same time the previous month.






Note: to keep spammers out, the feedback form requires you to type the class name, such as PHY1050, in order to submit feedback.


Class (enter PHY1050):



On a scale of 1 to 5 stars, with 5 stars
being the best, how do you rate this lesson?