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In principle, there's no reason why it couldn't be. But it would be prohibitively
expensive, harder to operate mechanically, and tough to match the optical
performance of an equal-sized reflector. That's why, bowing to pragmatism
and practicality, there hasn't been a larger refractor built since the 40-incher
at the Yerkes Observatory was completed in 1895.
What else can I help you with?
What telescopes is the largest reflecting refracting x-ray or the very large array?
It's difficult to understand the question, but WikiAnswers doesn't do well with multiple choice questions. In general, refracting telescopes are smaller than reflecting telescopes; a refractor has the light going straight through the tube, and structural considerations force limits on its size. In a reflecting telescope, the light path is folded back on itself, and reflecting mirrors reflect more light than thick lenses can pass through. But the largest current reflecting telescope is perhaps 300 inches in diameter, although larger ones are planned. By contrast, the Very Large Array of radio telescopes is ACRES in total size, and there is no theoretical limit in how large "it" could be - because "it" is actually "they". Dozens, potentially hundreds of radio telescopes can add their size together to develop a more sensitive and more precise instrument.
What are some telescopes names?
The two types are refractor and reflector. In a refracting telescope, the light comes in THROUGH a magnifying LENS where it is REFRACTED (bent) to focus the light into an objective lens. In a reflecting telescope, the light BOUNCES OFF a curved magnifying MIRROR , and then reflected again on a secondary mirror to direct the light into an objective lens. Among the advantages of a reflecting telescope are that in a refracting lens, the thickness of the lens can absorb some of the light, while a mirror reflects all of the light. Additionally, a reflecting telescope can "fold" the telescope into a much more compact instrument, which is essential with especially large devices. A large refracting telescope would be enormously heavy and cumbersome.
Is a light telescope the same as a refracting telescope?
Not exactly. A light telescope is a telescope that catches and shows visible light. The main light-gathering piece may either be a lens, in which case you would have a refracting telescope. Or - much more common with the larger telescopes - the main light-gathering piece is a parabolic mirror. In this case, it is a reflecting telescope. The largest refracting telescope is about 1.2 meters in diameter; all larger telescopes - currently up to about 8 meters - are parabolic mirrors.
Why is it a advantage for reflecting and refracting telescopes to be made larger?
The reason people build larger Telescopes is because smaller telescopes have a smaller power to them, which results in less detail the farther they look. Larger telescopes use much larger lenses to see much farther and with much more clarity.
Is telescopes a collective noun?
No, "telescopes" is not a collective noun; it is a plural noun that refers to multiple individual telescopes. A collective noun represents a group of individuals or things as a single entity, such as "team" or "flock." In contrast, "telescopes" simply denotes more than one telescope without implying a single unit.
Reflecting telescopes differ from refracting telescopes in having?
Reflecting telescopes use mirrors to gather and focus light, while refracting telescopes use lenses. Reflecting telescopes tend to be more compact and easier to support larger apertures, making them popular for professional astronomical research. Additionally, reflecting telescopes are less affected by chromatic aberration compared to refracting telescopes.
Compare reflecting and refracting telescopes?
Reflecting telescopes use mirrors to collect and focus light, while refracting telescopes use lenses. Reflecting telescopes are typically less affected by chromatic aberration, while refracting telescopes can be more prone to this issue. Reflecting telescopes are generally more cost-effective for larger apertures.
How are reflecting and refracting telescopes different?
Reflecting telescopes use mirrors to collect and focus light, while refracting telescopes use lenses. Reflecting telescopes typically have a closed tube design which protects the mirrors from dust and other contaminants, while refracting telescopes are more prone to chromatic aberration. Reflecting telescopes are generally easier to manufacture at larger sizes compared to refracting telescopes.
Are reflecting or refracting telescopes more top heavy?
Refracting telescopes tend to be more top heavy than reflecting telescopes because the lens at the front of the telescope, which is used to gather light, can be heavier than the mirrors used in reflecting telescopes. This imbalance can make refracting telescopes more prone to tipping if not properly balanced or supported.
Why are most modern telescopes reflecting telescopes?
Most modern telescopes are reflecting telescopes because reflecting telescopes are generally more cost-effective and easier to build at larger sizes compared to refracting telescopes. Reflecting telescopes also suffer less from chromatic aberration and can have a simpler design with fewer optical elements.
Reflecting telescopes are popular because they're than a refracting telescope?
Reflecting telescopes are popular because they are generally more compact and can be built in larger sizes without the issues of chromatic aberration that affect refracting telescopes. They use mirrors instead of lenses, which allows for a simpler design and easier manufacturing of large apertures. Additionally, mirrors can be supported from behind, reducing the risk of distortion that occurs with heavy lenses. Overall, these advantages make reflecting telescopes more versatile and effective for astronomical observations.
What is the difference between a reflecting telescope and a refracting telescope?
A reflecting telescope uses mirrors while refracting telescopes uses lens. The refracting telescope also had chromatic aberration and bad resolution while the reflecting telescope had none of these.
What are some of the advantages of reflecting telescopes over refracting telescopes?
Size... a reflecting telescope with the same power as a refracting telescope is much shorter. This is because, in the reflecting telescope, the incoming light is bounced off mirrors (often more than once) which means the physical length is much shorter than an equivalent refracting model.
Do refracting telescopes have more limitations than refracting telescopes?
nope they are the same
Why have no large refracting telescopes been built since 1900?
Refracting telescopes suffer from chromatic aberration, refracting telescopes have several surfaces to shape and polish, making large glass lenses without interior defects is very difficult, and large glass lenses are more difficult to support than large mirrors.
What are the major types of optical telescopes?
Ground-based telescopes, and space telescopes. Or: refracting telescopes (main collector is a lens), and reflecting telescopes (main collector is a mirror). Or: Home telescopes (small ones), and professional ones (larger and more expensive).
What advantage do reflecting telescopes hAve over refracting telescopes?
One advantage of reflecting telescopes is that the mirrors can be very big. Large mirrors allow reflecting telescopes to gather more light than refracting telescopes do. Another advantage is that curved mirrors are polished on their curved side, which prevents light from entering the glass. Thus any flaws in the glass do not affect the light. A third advantage is that mirrors can focus all colors of light to the same focal point. Therefore, reflecting telescopes allow all colors of light from an object to be seen in focus at the same time.
