The same should also be said about solar telescopes. However, they are the most expensive.Įach of these types of telescopes can be built in different ways and have different distortions. If you have the skills to use it, your catadioptric telescope can serve well both for the deep sky and for planets. This type was invented to correct the optical distortions of the other two types of telescopes. Such telescopes usually have compact closed tubes and are relatively light weight. Catadioptric telescope: how it works?Ĭatadioptric (or mirror-lens) telescopes are made with a combination of lenses and mirrors. You can also take a look at catadioptrics. If you want to take a deeper look into the sky, and you want the best value for your money, then this is the best option for you! Choose a reflector with the largest possible lens.
Such telescopes have a good aperture and therefore are great for the deep sky. Large reflectors also have disadvantages as heat flows inside the tube and they need a long time to stabilize before starting observations. The main disadvantage of reflectors is the effect of central shielding, which is a blackout in the center of the image.
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Such telescopes are free of chromatic aberration (color distortion), which often affects refractors.
They create an image with the help of a parabolic or a spherical mirror. The most inexpensive and most common reflector among lovers of nebulas is Newton’s optical scheme. They require periodic adjustment and maintenance (dust settles on the mirrors). They are more broad and short than refractors, and their optical tube is open. Reflectors are designed based on mirrors, without lenses in their optical scheme.
Their closed telescope tube does not need regular care.Though they are more expensive than reflectors of the same aperture, however, they have several advantages: Refractors can be used as a very powerful spyglass, they are very suitable for beginners and children. They are better for the Moon, planets of the Solar system and, maybe even binary stars. Because of the design, their aperture is small and does not allow you to observe dim objects. They are the easiest to use and do not require adjustment. They are easy to recognize: usually, they have a long and thin body, tapering from an objective to an eyepiece. These telescopes use only lenses in their objectives (no mirrors). There are three basic types of telescopes:Įach of them has its advantages and disadvantages. Optical telescopes are classified by their type of optical scheme. Due to the special design of optical lenses and mirrors, optical telescopes allow us to see distant planets, stars, and galaxies with our own eyes. Optical telescopes are the telescopes that are used in amateur astronomy.Radio telescopes look like huge satellite dishes. Their construction uses special antennas that allow you to pick up a wide range of frequencies. The radio telescopes are widely used in astronomical research to study electromagnetic radiation of various astronomical objects.The wavelengths emitted depend on the heating temperature: the lower the temperature, the longer the wave and the lower its radiation intensity. As you know, all types of matter, both liquid and solid, heated to a certain temperature, emit infrared spectrum energy. The infrared telescopes are used in astronomy to study the thermal radiation of space objects.There are also infrared telescopes and radio telescopes. Telescopes that we are used to seeing in astronomical observatories and neighbors’ back yards are not the only types that exist. TELESCOPES » Telescopes types: optical schemes.
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