Refracting and reflecting telescope

refracting and reflecting telescope

1. Refracting Telescope It uses lenses to gather light from faraway objects . In refracting telescope the light is bent and focused on objective lens. The image is then magnified by lens in the eyepiece.

2. Reflecting Telescope Visible light reflects off a series of 2 or more mirrors, which amplify the image before it reaches the lens in the eyepiece.

3. What kind of telescope would you expect to find in most observatories ? It is easier to build large mirrors together more light so most large telescopes are reflecting telescopes.

4. Invisible light Telescope Invisible light frequency in electromagnetic spectrum that people cannot see. Special telescopes can detect waves such as radio waves ,radar, infra red waves ,ultraviolet light , X-ray. These telescopes can gather information that cannot be observed using visible light.

5. Why might astronomers study objects in space with an infrared telescope? To gather information not obtainable with visible light ,like X-rays.