Telescope

 Telescope

is an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation.

 

The first person to apply for a patent for a telescope was Dutch eyeglass maker Hans Lippershey (or Lipperhey). In 1608, Lippershey laid claim to a device that could magnify objects three times. His telescope had a concave eyepiece aligned with a convex objective lens.

 

Primary mirror (for reflecting telescopes), which carries the same role as the primary lens in a refracting telescopes. Eyepiece, which magnifies the image. Mounting, which supports the tube, enabling it to be rotated.

 

Types of Telescope. There are three main types of telescope. These are refracting telescopes, Newtonian telescopes and Schmidt-Cassegrain telescopes.

 

The Arecibo radio telescope still represents the largest single-aperture telescope ever constructed, with its spherical reflector consisting of 40,000 aluminum panels each 3 feet by 6 feet.

 

A good telescope can cost anywhere from $200 to $8000 US dollars. Depending on if you are just starting out or if you are looking for a professional telescope, prices will differ. The characteristics of a good telescope will be defined by the intended use and the needs of a particular user.Jan 7, 2021



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