More large telescopes are in use today than ever before. The introduction of Dobsonian mounts is largely responsible for this. Newtonian reflectors coupled to alt-az Dobsonian mounts (see ...

The Sky-Watcher Explorer 130 EQ2 telescope is one of the best beginner telescopes simply because it’s one of the most unusual. At its core it’s a Newtonian reflector telescope like many others ...

The theory helps us predict how objects as large as planets and as small ... One of the byproducts of his experiments with light was the Newtonian telescope, still widely used today.