Catadioptric telescopes were invented in the 1930s and are the most modern design of telescopes.the mirrors or lenses) then the image created will appear warped or out-of-focus and blurry. If there are any flaws in a telescope’s optics (eg. Mirrors are lighter than lenses and they are also easier to shape into a smooth and perfect surface. They use mirrors to collect and focus the light towards the eyepiece. Reflecting telescopes are sometimes called Newtonian telescopes after their inventor Isaac Newton who built the first one in 1668.The astronomer, Galileo, was the first person to observe the night sky with a telescope, discovering the craters on the Moon, the rings of Saturn, and Jupiter’s four largest moons (Io, Europa, Ganymede and Callisto). They have a curved lens at one end that focuses the light down a long tube towards a second lens, called the eyepiece, which magnifies the image. Refracting telescopes were the first type of telescope and their invention is attributed to a Dutch lensmaker, Hans Lippershey in 1608.There are three main types of optical telescopes and these differ in the way that they collect light to form an image: R: The historic 19th century Great Melbourne Telescope in its original location. Image credit: Wiki Creative Commons / SSOPete. One of the highest concentrations of telescopes in the world is located next to the Warrumbungle National Park in north-central NSW. L: Siding Spring Observatory aerial view.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |