What Types of Radiation Does a Optical Reflecting Telescope Detect?

Answer The last lens-based, refracting telescope used for research astronomy was built before 1900 --- because large lenses become extremely heavy and suffer from a problem called chromatic aberration, wh... Read More »

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What is the difference between a refracting telescope&a reflecting telescope?

Both refracting and reflecting telescopes are types of optical telescopes, used to focus light and allow the viewer to see distant objects. While refracting telescopes focus light using lenses, ho... Read More »

What is the cost of a 12 inch reflecting telescope?

The cost varies by manufacturer and model. For example, the Saxon Collapsible DOB 12-inch reflector retails for $2,499 or can be found on sale for $1,370 as of February 2010. The high-end Takaha... Read More »

What Is the Purpose of the Flat Mirror in a Reflecting Telescope?

A reflecting telescope uses mirrors to reflect light, as opposed to refracting telescopes that use lenses. Although this makes the reflecting telescope more expensive, they also tend to experience ... Read More »

What year did Newton make the first reflecting telescope?

Sir Isaac Newton was an English mathematician and physicist. He invented the first reflecting telescope in 1668. His technique of reflecting light with a mirror instead of using a glass lens preven... Read More »