A refractor or refracting telescope uses an objective lens to collect ... to other types of 'scope as they only require a few parts to construct. Supporters also underline the fact that Newtonian ...

The original instrument to occupy the 25-foot diameter dome was the 10.5-inch Bausch refracting telescope (f/15.5) installed in the brand new observatory in 1953. Bausch & Lomb Company gave the ...

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.

On clear nights, the rings of Saturn pop and the moon’s craters spring to life as Baton Rouge astronomy enthusiasts peer through one of the country’s few remaining Alvan Clark & Sons refracting ...