This refractor comes complete with all the accessories ... which is great for beginners. Newtonian telescopes are popular with amateur astronomers because they allow users to focus on a really ...

Well, any of us who has ever looked through a telescope could say the same, for the two principal types in use today were developed by giants: the refractor by Galileo and the reflector by Newton.

Refractors usually need a star diagonal ... A Dobsonian mount is an alt-az type specifically made for Newtonian reflecting telescopes. The mount, which employs a swivel base and a cradle assembly ...