Types of Telescopes - Astronomy Notes.

Optical telescopes can be classified by three primary optical designs (refractor, reflector, or catadioptric), by sub-designs of these types, by how they are constructed, or by the task they perform. They all have their different advantages and disadvantages and they are used in different areas of professional and amateur astronomy.

Most of the large telescopes used for research, including the Hubble Space Telescope, are of this design. Some of the largest telescopes like the Hale Telescope and the Keck Telescope have places to put detectors at the prime focus, where the light from the primary mirror first comes to a focus.

There are two main types of telescopes. One type uses lenses to magnify the image. Telescopes that use lenses are called refracting telescopes. The other type uses mirrors to focus the light of the image.

TYPES OF TELESCOPES. We will be primarily concerned with optical telescopes which have two basic subdivisions: Refracting Telescopes: Refraction works on the principle that light has different “bending” properties in different media (glass,water, air, etc.). Refracting Telescopes use a glass lens to cause the convergence of the light.

Introduction The telescope is an instrument which increases our ability to observe far away objects through the collection of electromagnetic radiation, the most prevalent type of telescope is the optical telescope which collects light, however there are other kinds of telescopes which collect UV and X -Rays.

In the 20th century many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. The word telescope now refers to a wide range of instruments detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors.

What are the two main advantages of giant telescopes for research? We need you to answer this question! If you know the answer to this question, please register to join our limited beta program.

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Amateur telescopes fit somewhere in between, and even though they are not nearly as powerful as the Hubble, they can do some incredible things. For example, a small 6-inch (15-centimeter) scope lets you read the writing on a dime from 150 feet (46 meters) away! Most of the telescopes you see today come in one of two flavors.

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