TELESCOPE

BENEFITS OF USING A TELESCOPE

• Being able to see far away with good resolution
• It can take photos faster than the human can see and make them clearer
• Allow astronomers to see the intensity of visible light
• Able to see all wavelengths that the human eye can't see

REFRACTING TELESCOPE

REFRACTING TELESCOPE

• Made around 1600's
• First created by Galileo
• Puts a big lens in front
• Puts the small lens in the back
• Originally used with a wooden tube

REFLECTING TELESCOPES

REFLECTING TELESCOPE

• Created in 1668
• Designed by Robert Hooke, Created by Sir Isaac Newton
• Eyepiece in the middle
• Then there is a mirror that reflects towards the lens
• Made of a with a metal tube

REFRACTOR VS. REFLECTOR

WHY PEOPLE USE REFLECTOR INSTEAD OF REFRACTOR

• Able to see better at high elevations
• Doesn't change color in the lens due to chromatic aberration
• Able to have a bigger view
• Cheaper than a same-sized refractor
• Only one of the mirrors need to be perfect because the light reflecting of the mirror