This is a great project for someone that is interested in both stargazing and photography. Bright city lights and even the light of the full moon obscure the dimmest stars, which can make identifying constellations more difficult. This project shows you a way to measure the amount of background light (skyglow) in the night sky. It can be a great way for you to quickly compare the star viewing quality for different locations, or for the same location at different times of the year.