How many diffrent types of telescopes are there?
What diffrerent types of telescopes are there and what are their different uses?
Just wondering cos there seem to be so many, there’s like telescopes in outerspace and enourmous ones down here on earth aswell as tiny ones you can buy in shops…
For astronomocal useage there are two types of telescopes, optical and radio.
Of the optical telescopes, there are two types also, reflecting and refracting.
Refracting telescopes are the common “tube” type telescopes that you look directly through and which have a lens on each end. Spyglasses and binoculars are made this way.
Reflecting (Newtonian) telescopes have a curved mirror at the bottom end and use the mirror as a lens to magnify the received image. The advantage for big ‘scopes is that the mirror is at the bottom so it is easier to build a support for it. The Hubble space telescope is a refracting telescope.
There is also a thrid kind of optical telescope that is sort of a combination of the other two that uses both mirrors and lenses.
In addition to ordinary optical telescopes there are also gamma ray and x ray telescopes that work on the extereme principles of refracting optical telescopes.
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