I like being able to save my constellations! Neat idea and very chill. I had a little trouble selecting stars sometimes – It’d select a nearby one, couldn’t really find a pattern to report. Really glad you show the selected one and have undo. I wish the controls were all on my left hand so I could pan and keep my hand on the mouse.
In all, very enjoyable experience! Wish I could get more than 1 star.