Reflecting Telescope Information

Reflecting Telescope Information



Reflecting Telescope Information
When viewing distant objects through the use of​ a​ telescope, the most important part of​ that telescope is​ called the objective .​
The objective is​ that component of​ the telescope that has the ability of​ gathering the light that is​ available .​
Obviously, the larger the objective the greater is​ the capacity of​ the telescope to​ gather light which in​ turn allows the viewed image to​ be better visualized.
In addition, there are two types of​ telescopes .​
One type of​ telescope is​ called the refractor telescope and the other is​ known as​ the reflecting telescope .​
The difference between these two telescopes is​ how the light is​ captured.
Refracting and Reflecting Telescope
The refracting telescope obtains the light through its objective that is​ made out of​ glass .​
Basically, in​ this type of​ telescope, the glass lens is​ situated towards the front of​ the telescope .​
As the light is​ captured by the objective, it​ is​ then refracted or​ deflected through a​ lens which allows for the viewed image to​ be magnified .​
Examples of​ this type of​ telescopic equipment include scopes that are used on rifles, binoculars and spyglasses.
A reflecting telescope uses a​ mirror as​ its objective .​
This mirror is​ located towards the distal end of​ the telescope .​
In addition, the mirror has a​ concave shape .​
The curvature of​ the mirror allows for the midpoint of​ the mirror to​ be the focal point for all of​ the light that strikes each part of​ the surface of​ the bowl-like mirror .​
This reflection is​ then captured by the lens to​ view the item of​ interest.
Advantages Of The Reflecting Telescope
There are several advantages to​ the use of​ a​ reflecting telescope .​
The major advantage is​ that distortion of​ what is​ being viewed is​ minimal .​
This is​ because, through the use of​ the mirror, the wavelengths are all reflected consistently .​
This advantage also leads to​ the reflecting telescope being less expensive than the refracting telescope.
In addition, through the use of​ the mirror as​ the objective, the support for this mirror can be all along the posterior portion of​ the telescope .​
This allows for the housing to​ be very large which will accommodate a​ larger mirror .​
Larger mirrors mean more light which results in​ increased visibility.
Disadvantages
However, as​ with anything else, there are a​ few disadvantages in​ the use of​ a​ reflecting telescope .​
One of​ those disadvantages is​ size .​
This is​ due to​ the fact that these types of​ telescopes can accommodate larger mirrors .​
This results in​ the telescope itself being larger which may prove to​ be an​ issue when storing or​ relocating the reflecting telescope.
In addition, because of​ the use of​ mirrors, there may need to​ be occasional adjustments made so that optimum light alignment is​ maintained.




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