Run down part 2
Run down part 2 Astronomy 1307
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This 2 page Class Notes was uploaded by sashiel pina on Thursday September 24, 2015. The Class Notes belongs to Astronomy 1307 at University of Texas at El Paso taught by Hector Noriega-Mendoza in Summer 2015. Since its upload, it has received 65 views. For similar materials see Introductory Astronomy in Astronomy at University of Texas at El Paso.
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Date Created: 09/24/15
Astronomy run down of class September 232015 Today we History Notes Discussed light Discussed sound waves Covered the history of light and photons Greeks were rst to study and discover light AlHazzan begins to understand how the human eye works Galileo discovered planets stars constellations using a telescope 1609 Red has low frequency longer wave length Higher frequency shorter wave length as you increase one you decrease the other Different colors act differently due to the medium or prism Photometer measures how much energy is coming from a certain source or a certain color The curve the black body curve which is a perfect meter of light example starsperfect emitters of light Energy of light is emitted from stars stars are black bodies Radio waves are not seen by human eye Green is the highest color emitted at 85 ls important it is used to measure the heat of a star on the surface atmosphere Stars show different temperatures in the center of a star vs atmosphere of a star Referring to temperature of star means reference to reference surface temp of the star Vega is a very hot star hotter than the sun as temp increases the more color 0 Less temp lower color 0 The higher the number the dimmer the source magnitude De nitions 0 as shown on the graph think relative max yaxis o Associated with colors and the length of a wave 0 Typically go from short to long wave lengths associated with peak emission x axis 0 Temperature affects both color and luminosity 0 Notice the peak on the graph that is peak emission Notice the xaxis that is peak wave length Light 45 35 25 15 05 Series 2
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