As the name suggests, the Newtonian telescope references 17th Century inventor Isaac Newton and is also sometimes known as the Newtonian reflector. The construction comprises a set up in which the ...

Newton's reflecting telescope consisted of a single curved ... most major observatories are Newtonian reflectors. During the nascent years of the telescope, most devices were relatively small ...

However, here you get bigger, better optics, and superior build quality. It's also a Newtonian reflector-type of telescope (rival brands of smart telescopes are all lens-based refractors).

Newtonian telescopes use a reflecting mirror to avoid the colour distortion and rainbow effect afflicting telescopes that use lenses. Finally, Newton discovered and defined calculus, the ...