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The two types are refractor and reflector.

In a refracting telescope, the light comes in THROUGH a magnifying LENS where it is REFRACTED (bent) to focus the light into an objective lens.

In a reflecting telescope, the light BOUNCES OFF a curved magnifying MIRROR , and then reflected again on a secondary mirror to direct the light into an objective lens.

Among the advantages of a reflecting telescope are that in a refracting lens, the thickness of the lens can absorb some of the light, while a mirror reflects all of the light. Additionally, a reflecting telescope can "fold" the telescope into a much more compact instrument, which is essential with especially large devices. A large refracting telescope would be enormously heavy and cumbersome.

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14y ago
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13y ago

There are way more than three types of telescopes. However, there are three major types of microscopes - light microscopes, scanning electron microscopes, and transmission electron microscopes. Light microscopes are used to observe things up to 1000 times their natural size. One of the main advantages of light microscopy is that it can be used to study living organisms. This is not true of electron telescopes, which, although they have a much greater magnifying power, can only study things once they have underwent a special preparation which inevitably results in cell death because they must be subject to stuff like staining by heavy metals.

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10y ago

Ground-based telescopes, and space telescopes.

Or: refracting telescopes (main collector is a lens), and reflecting telescopes (main collector is a mirror).

Or: Home telescopes (small ones), and professional ones (larger and more expensive).

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14y ago

The two main kinds of Optical telescopes are refractors (dioptrics) and Newtonian reflectors (catoptrics)

Refractors use lenses while reflectors use mirrors.

Besides those, there are also catadioptric telescopes which use mirrors and lenses in combination.

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12y ago

There are two main types of optical telescope, the reflecting telescope and the refracting telescope. The reflecting telescope uses mirrors to magnify and manipulate the image, while a refracting telescope uses a series of lenses. The reflecting telescope has a shorter but wider body, while the refracting telescopes are generally longer but slimmer.

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13y ago
  • Optical
    • Reflector
      • Newtonian
    • Schmidt
    • Cassegrain
    • Dobson
    • Refractor
  • Radio
  • Gamma
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14y ago

The three main types of telescopes are the reflector, the refractor, and the Cassegrian telescopes.

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14y ago

The refracting telescope and the reflecting telescope are two optical.

types

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14y ago

Refractor (with lense(s)) Reflector (with mirror(s))

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13y ago

There are two basic types of telescopes, refractors and reflectors.

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What are some names of a space exploration?

Robot space probes and telescopes


What are the names of different telescopes?

Refecter telescope


What are the names of some shops offering Celestron FirstScope telescopes?

These telescopes can be ordered directly from Celestron. They are also available at Amazon, Walmart, and Optics Planet. Models can also be found on eBay.


What are the disadvantages of telescopes?

There are many disadvantages of telescopes. These disadvantages of telescopes include not being able to see what you need to see.


How are telescopes used in astronomy?

Telescopes are used to see things that are far away from earth. Using telescopes we can see things that are millions of miles away. Most of the telescopes are on Earth but some of them are in space such as the Hubble Space Telescope.


Why do you keep some telescopes in space?

jhb


Do telescopes use energy?

Yes. It takes energy to move them in the correct direction. In home telescopes, this is done by hand (energy from your muscles), in large telescopes they use some kind of motors to do that.


How long have humans used telescopes?

We know the telescope was invented by 1608 and soon many people, for example Galileo, were using telescopes. There is some evidence of earlier telescopes, but we aren't certain about that. So, humans have been using telescopes for about 400 years.


Which layers of the Sun can be seen with some type of telescope?

The photosphere can be seen with visible-light telescopes, while the chromosphere is most easily observed with ultraviolet telescopes and the corona with X-ray telescopes.


Where do reflecting telescopes work best?

All telescopes work best in the vacuum of space. Aside from that, "where" really is not a great factor compared to other types of telescopes. The distinct advantage of some reflecting telescopes is that they don't suffer from chromatic aberration like refractors do.


What have telescopes discovered and found out?

Telescopes have helped discover many things in space that are not visible such as some of the outer planets of our solar system.


What other kinds of radiation are detected by telescopes?

Researchers use all of these: -- optical telescopes -- radio telescopes -- x-ray telescopes -- infra-red telescopes -- ultraviolet telescopes