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I don't quite understand the concept of field of view of a telescope... Specifically, I am trying to understand the advantages of reflecting and refracting telescopes compared with the other, and my text book says that "Refracting telescopes have a wider field of view than reflectors of the same length because their angular magnification is less. Astronomical objects are therefore easier to locate using a refractor instead of a reflector of the same length." Firstly, I don't understand why the angular magnification of reflecting telescopes is greater for a qiven length of telescope. Looking at diagrams, it seems like this would depend entirely on the power of you objective and eyepiece lenses. Secondly, I don't really understand what it means by field of view... the Wikipedia article on this doesn't seem to have a great explanation.
Thank you in advance! :)
Thank you in advance! :)