From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for ...

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.

ground surrounding the telescope. Moving the reflector assembly off-center minimizes the chance of terrestrial signals bouncing off the antenna structures and interfering with our search for ...

Now, it is used primarily by APS graduate ... refractor and its replacement short-and-fat reflector. In order to fully appreciate the fine detail and workmanship that went into the Boller & Chivens ...