I’ve tried a few, and I’d say the Sega Homestar Flux is the best planetarium projector for clear constellations. It’s pretty spot-on with the star positions and covers a wide area. I’ve used it for over a year now, and it still amazes me every time.

Personally, I found coaxial models way easier to handle when I was learning. They’re perfect for getting the hang of basic controls without too much frustration. Coaxial RC helicopters have two counter-rotating rotors, making them super stable and easy to control, perfect for beginners.Single rotor helicopters are more agile and faster but are trickier to fly.