Refractor Telescope

<p style="color:#dbdbdb ;padding:20px; border-left:5px solid #FFFFFF;">Telescope is an instrument that provides a detailed and magnified view of far-off objects, especially the extraterrestrial ones. Though its invention is a history full of complications, it has become one of the major contributors to the human’s conquest over the sky. Galileo has been known to be the first person to build a telescope of his own and he used it to look up at the sky and he saw the craters of the moon, in the year 1608. Since then different types of telescopes have been used for astronomy. With the passing year, there has been changes and improvements incorporated to the telescope in order to make it better. The kind of telescope that Galileo used was known as Refractor Telescope which was further developed into reflector telescope in the later years. As per the growth of human intellects, another kind of telescope also came into the picture which was known as Schmidt Telescope. Let’s first study the Refractor Telescope. </p>
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Reflector Telescope

<p style="color:#dbdbdb ;padding:20px; border-left:5px solid #000000;">After Galileo had made the telescope popular, the space seemed to be closer to the earth. The space enthusiasts could see the moon, planets and various other objects which was impossible for the naked eyes, but then they figured out a problem that hindered the clarity of the image. The images happened to have missed some of its clarity because of a colour smear that formed around it. It is known as the chromatic aberration and is due to the different wavelengths of the colour spectrum and different focal points after getting refracted from the lens. In that course of time, while various scientists were trying to resolve the issue, Isaac Newton came with his new concept and built a new type of telescope in the year 1668. It not only made the colour smears disappear but also made various improvements, which the Galilean (refractor) telescope was missing on. It was the Reflector Telescope, also known as the Newtonian Telescope.</p>
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