Make Sure You See Red

If you are taking a road trip and have no idea where the destination is you bring a map. Stargazing isn't much different. People use charts to help view the night sky all the time. The problem here is you can't read these charts in the dark. Yet, if you use a bright flashlight after your eyes have adjusted to the dark it will be harder for you to re-adjust your eyes to use your astronomy binoculars again. The solution? A low level red flashlight. The light emitted is just bright enough for you to see things. Yet you will still be visually adapted to the night.