Telescopes are used for focusing objects that are far away and an assortment of electromagnetic radiation makes it possible for viewing things closer. They are really very helpful for astronomers to see planets and observe things that are very light and tiny. A telescope must be capable of showing things very closer and bigger. Likewise a good telescope should possess some important features to attain the purpose for what it is being used.

A telescope is said to be good only if its optics are good. Telescopes with good optic quality can collect maximum light and this result in a better viewing of the object. Also it must be easy to maintain for an extended use. In case if any parts damage or break down spare parts must be easily available. Proper support of technical terms and guidance must also be provided. Adding or removing parts should be capable for a wide range of use.

The size of the aperture is important in a telescope. Generally aperture is the diameter of the lens. You can select the aperture size based on the purpose of the telescope that you are using for. Large size apertures are capable of collecting more light and the images produced are comparatively much better with a closed focus.

Wavelengths are also an important feature to look for in a good telescope. The minimum wavelength that a telescope can have is about one-fourth. Good telescopes can have wavelengths of one-eighth or merely lesser than that. Usually, wave numbers are revealed as fractions and the performance of a telescope is based on the assortment of the total wavelengths of each optical element. For instance, a telescope with three mirrors will have an overall wavelength of one-fourth when its each optical component has a wavelength of one-eighth.

A good magnification power is much important for a telescope. They are measured per inch of the size of the aperture. When you need a clear and closer view, you can go for the magnification of 50x per aperture. Remember do not go for an aperture more than that, as you will not get a clear view of objects. For example, if you have a telescope measuring 3 inch then a 150x magnification is more than enough. Also magnifications below the range of 50x leave you an unclear image.

Of all, a good telescope must have some cost benefits. The features of a telescope should be apt for the cost that you have incurred on it. They should also be much user friendly and it should be easy for handling them.

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