This Death Star Planetarium opens up into a planetary projector to display the cosmos on your bedroom ceiling. Choose to view a map of the worlds that make up the Star Wars galaxy, but just in case you want some real educational value out of this Death Star, there’s a second dome that shows the night sky of Earth, constellations and all. It is a fun and informative learning guide. It requires 3 AA batteries.
https://youtu.be/bDzhRfDy3Xo