Star Finder Night Sky Binoculars Astronomy Tool, "Stellarscope"

Quickly locate and identify more than 1,500 stars that are visible to the naked eye. Choose the adapter for your latitude, rotate the time/date selector for the current date and time, and look through the Stellarscope for a star map aligned with the actual night sky as it appears in your location at that moment. Accurate between 20° and 60° north or south latitude, which includes the continental U.S. as well as most of Alaska and Canada south of the Arctic Circle.