THE TELESCOPES

Types of Telescopes

the reflecting telescope

the refracting telescope

the catadioptric

Astronomy benefits greatly as the technology of producing higher quality and more powerful telescopes become increasingly more advanced.

are also called Newtonians

use mirrors instead of glasses. They are usually built with two mirrors.

do not have chromatic aberration

Lenses are found in refracting telescopes

One of the advantages is that the lenses do not have to be collimated.

is less expensive

one of its disadvantages is a defect called a coma

The lenses in the refracting telescope do not move. They are fixed.

It will withstand handling better.

can be expensive.

They suffer from chromatic aberration and is usually rather heavy

are a hybrid of the two other types.

They are shorter. That means they can be moved more easily.

They also have less chromatic aberration

they are more expensive than reflecting telescopes.

They also have to be collimated