I like the concept a lot, super chill with the background music, unfortunately my knowledge of constellations starts and stops with the dippers and Orion's Belt. I saw in the comments you said something about a cheat sheet. You could just have an opaque thicker line behind them that way you don't even have another menu to look at to keep the UI clean. I also wish the little balls move the tiniest bit faster. Super cool idea! Great Work!