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Telescopes

A telescope is a device used to view objects that are extremely far away. Most commonly, a telescope is used for astronomical purposes such as stargazing. The word telescope comes from the Greek words “tele” and “skopein” which means “far” and “look”. 

Today, there are three types of telescopes available; a Refractor Telescope, a Reflector Telescope and a Maksutov-Cassegrain Telescope.

A Refractor Telescope

The reflecting telescope is an optical telescope that uses a single or combination of concaved mirrors that reflect light and form an image. The mirror reflects the light rays to a secondary mirror and this mirror reflects them through to the eyepiece.

Advantages of the Refractor Telescope:

Disadvantages of the Refractor Telescope: 

A Reflector Telescope

The reflecting telescope is an optical telescope that uses a single or combination of concaved mirrors that reflect light and form an image. The mirror reflects the light rays to a secondary mirror and this mirror reflects them through to the eyepiece.

Advantages of the Reflector Telescope:

Disadvantages of the Reflector Telescope:

A Maksutov-Cassegraintelescope:

The Maksutov-Cassegrain telescope uses a combination of mirrors and lenses. This telescope combines the advantages of both the reflecting telescope and the refractor telescope. The Maksutov-Cassegrain telescope uses a curved mirror in the back, which reflects the light back to a double concave lens. On the back of this lens is a mirror that sends the light to the eyepiece, allowing you to view the object you wish to see.

Advantages of the Maksutov-Cassegrain Telescope:

Disadvantages of the Maksutov-Cassegrain Telescope:

Purchasing a Telescope.

Now you know the different types telescopes, you might want to purchase one. But which other thing you will have to take into account when purchasing a Telescope. For this, we have written the page: Telescopes, Important Terms