Physics Of Light And Light

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Through the fields incorporating the science of light, astronomers use factors such as wavelengths to interpret stars’ temperature, heat, distance, size, mass, density, etc. To obtain all of this information certain light gathering instruments must be used. These instruments include telescopes. To record this information spectrographs are also mainly used to record the spectrum and dispersion of light. In light there are different waves and particles. Light is made up of electric and magnetic fields. Due to this fact, light is an example of electromagnetic radiation, it is the changing of these fields to travel through space shifting energy maneuvering from one area to another. Since light is an electromagnetic wave, each one has a certain wavelength. Telescopes help us to view the visible light of the electromagnetic spectrum. Most of the electromagnetic spectrum, such as infrared, x-rays, ultraviolet, and gamma rays, don’t reach earth’s surface to be examined. A telescope in space, above the atmosphere, however, is said to be diffraction limited. Since the speed of light is constant a wavelength of radiation of a star can be seen as its frequency. Frequency is recorded based on a certain number of waves emitted within a brief second.
Optical Telescopes have two types: reflecting and refracting. In 1609, Galileo had developed the first telescope. From here on out, ideas back then of the geocentric solar system were finally put to rest through the use of the first
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