This little device (small enough for a shirt pocket) is a bright idea for teaching constellation roaming to the younger enrollees at Star Fleet Academy. Flip open the lid on any starry night, find north with the built-in compass, and insert a card for any of 20 major constellations from Andromeda to Virgo. A light (in night-vision-friendly red) illuminates the card, which maps the constellation, tells you in which months it's visible, and explains how to find it relative to the polestar. Major s .if your download do not automatically please press button beloww
