PHYS 183 Chapter Notes - Chapter 6: Diffraction Grating, Primary Mirror, Spectral Resolution
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Dependent on actually separation & distance from us. Ultimate limit of telescope properties of light: since light is an electromagnetic wave, can interfere with one another like ripples interference limits telescope"s angular resolution. Observations through telescopes fall into 3 categories imaging photographs or astronomical objects. May place filters in front to allow particular colours/wavelengths. Most images of astronomy are combined images of different filters today many images made from invisible light (anything other than visible light) 6. 3 telescopes and the atmosphere telescopes on the ground are less expensive to build, operate & maintain than telescopes in space. Problems with observing from earth daylight, weather, light pollution, blurry images by atmospheric motion, light not reaching ground. Atmosphere prevents most forms of light from reaching ground can"t observe light across the electromagnetic spectrum from earth. 6. 4 telescopes and technology radio telescopes: most common type of telescope every satellite dish is essentially a small radio telescope.
