10 Best telescope of 2020

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Telescope guide

The telescope – An instrument that absorbs and bundles electromagnetic waves, allowing you to admire distant objects. But what was the first and what else is there about the seemingly simple constructed telescopeto know?

The genesis and development of the telescope

The Dutch telescope by eyewear maker Hans Lipperhey is the first telescope (1608). Two years later, Galileo Galilei continued to improve or develop it and was thus dubbed the Galilei telescope. However, the real inventor should be Zacharias Janssen and his father.

The further development was not long in coming. This was followed by the Kepler telescope (1613), from which emerged several concepts until the lenses were invented in 1750, also known as Achromate. However, it was not until 1825 that the first 30cm lenses were produced. Before that, mirror telescopes had to be used to explore space.

In 1630 the first mirror telescopes were designed, albeit with misrepresentations. Only over 30 years later, James Gregory made an improvement. 1672 then Isaac Newton and Laurent Cassegrain, who perfected the mirror telescope. The Newton and Cassegrain telescopes became prototypes at the beginning of the 20th century and its onset.

What is there for telescopes?

The telescopes are differentiated according to the wavelength range (frequency spectrum) of the electromagnetic radiation. Thus, they are used under different performances and functions for different areas.

A gamma telescope receives and measures gamma rays from space, which are considered to be the strongest electromagnetic radiation. It is used for the latest research in astronomy, for the elucidation of energy processes of gamma-ray bursts and active galactic nuclei.

An X-ray telescope receives and measures X-rays from space. There are two different types. Once that telescope without optical imaging system and the imaging telescope , which investigates the areal distribution of intensity from the Roentgen sources. Most X-ray telescopes are used in space observatories or research satellites.

Optical telescopes include the telescope and the reflecting telescope, which differ in their construction. The main function is to enlarge distant objects. The optical telescope is mainly used in the field, such as a sighting telescope.

An infrared telescope uses the emitted infrared radiation from astronomical objects and serves in the experimental section of infrared astronomy. Because infrared radiation is part of an electromagnetic spectrum, it can not be perceived by the human eye.
A radio telescope receives and measures radio frequency radiation coming from celestial objects from space, and is considered the most important utensil of radio astronomy.

In addition to the aforementioned telescopic species, there are additional special types, such as the very long-firing tower telescope. Its function is mainly used to study the sun. In addition, the giant telescope and the inclined mirror are still considered special types.

What is a telescope equipped with?

Like every other object, the telescope also comes as standard. The telescope includes the following things:
– Eyepiece: Eye-side, optically effective part.
– Barlow lens: named after Peter Barlow. Increases focal length and magnification.
– Herschelkeil / Herschelprisma: Suitable for the astronomical observation of the sun.
– Solar filter: special neutral density filter to observe the sun without hesitation (as in a solar eclipse).
– Color filter: Auxiliary filter for cameras, which filters out a certain color or lets it through.
– Aperture: openings, which limits the extent of the beams.
– CCD cameras / CCD sensors: Photosensitive electronic components based on internal photo effects.
– Mount: Establishment of practical astronomy with three different functions. 1. Wearing the telescope, with the desired directional position. 2. counteract the earth’s rotation. 3. Follow closely observation objects (e.g., comets).
– Finder / Finder: Parallel to the main telescope lying separate smaller telescope whose magnification is kept smaller.
– Polsucher: sighting device, for parallel alignment of Erdachse and parallactic mounting of the telescope.
– Okularauszug (OAZ): device whereby sharp images can be generated.

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*Last update on 2020-11-04 / Affiliate links(we get a commission when you buy on amazon) / Images from Amazon Product Advertising API