What is that donut-shaped object I see in my telescope? I was looking through my telescope for the first time and came across this weird star. I think its a celestial donut but im not sure.
This is because your image is not in focus. So you’re seeing the shadow of the secondary mirror.
You should have a knob near the eyepiece, that you can turn to adjust focus. You need to turn it, one way or another, until the image is as small as possible and as bright as possible.
Good luck!