Discovering The Different Parts Of A Telescope
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Date: Wed, 28 Sep 2011 Time: 6:18 AM
The telescope is an amazing invention, providing us with the ability to view remote stars and other celestial objects clearly. Have you ever wondered how it accomplishes this? The telescope consists of many parts, some of which are similar to that of binoculars and I cover them briefly in this article. The first portion of the telescope is known as the optical tube assembly or OTA. The OTA is just the telescope's main tube assembly which is made up of several different optical parts, lenses and mirrors. The next component is the eyepiece which is the area the individual looks through and some types of telescopes may also have extra lenses located inside. Now we come to the focuser, which enables the viewer to alter their focus, helping to create a crisper, cleaner view of the celestial object they are aiming to view. There are different types of focusers used with telescopes and these include rack and pinion and Crayford focusers. The telescope's finder is one of its most important parts because it enables the viewer to track down space objects they want to view. This process would of course be near impossible without the finder to find objects that are light years away. More expensive telescope models often come equipped with a Barlow lens. The Barlow lens, an invention from the 19th century, is a concave lens that increases the telescopes magnification when placed between the lens or mirror and the eyepiece. The telescope's mount is what keeps the telescope in place and there are three different types of mounts found on telescopes available from retail outlets - the Equatorial, Dobsonian and Altitude Azimuth. There are other mounts used in the assembly of more advanced, larger telescopes that are not available in retail outlets. The final part of the telescope is the tripod and these come in many different types and sizes. The tripod consists of three legs which keep the telescope at a height where the viewer can comfortably use it. Most retail telescope models come with a tripod but if yours didn't, there are plenty of economical options available online to purchase one. So that covers the parts found in a basic telescope. Many of the modern telescopes are more state-of-the-art with computer technology integration, containing more parts and other gadgetry such as remote hand controls and operation via the viewer's home computer.
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If you are looking to take your astronomy to the next level and learn more about the Celestron C8, be sure to visit TelescopeBuyer.com.
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