Enif is cooler than the Sun Measurements indicate that a certain star has a

Enif is cooler than the sun measurements indicate

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The spectral class of the star Enif is K, while that of the Sun is G. Enif is cooler than the Sun Measurements indicate that a certain star has a very high intrinsic brightness (100,000 times as bright as our Sun) and yet is relatively cool (3500 K). This is because the star is very large The temperature of the outer atmosphere of the Sun is very hot, about 10^6 K Spectral lines are of particular importance in astronomy because each different element has a characteristic line spectrum Solar flares, the violent eruptive events on the Sun, occur most frequently in or above complex sunspot groups The rotation of the Sun is differential rotation, with the equator rotating faster than the poles Atoms in a thin, hot gas (such as a neon advertising sign), emit light at specific wavelengths or colors, the pattern depending on the element Neutrinos particles/type of radiation will provide the most direct information on the energy generation processes that are occurring at the present time in the solar core Magnetic fields breaking through the photosphere inhibit gas motion where the field is strong causes sunspots The number of sunspots on the Sun vary relatively regularly, with a period of about 11 years The upper left end is the most massive stars to be found in the main sequence of a Hertzspring-Russell diagram Hot, blue, main-sequence star has the surface temperature of 20,000 K and luminosity 5,000 times that of the Sun Two identical stars (having the same total light output) are located such that star A is at a distance of 5 light years and star B is at a distance of 25 light years. Star B will be 1/25 as bright as star A The centers of the granular cells on the surface of the Sun are brighter than the edges of the cells because the centers are hotter than the edges Luminosity and surface temperature are two physical parameters of stars that are plotted in the Hertzsprung-Russell diagram Photons (radiative transport of energy) is the dominant mechanism by which energy is transported through the inner regions of the Sun A red supergiant star is found to have a surface temperature of 2,500 K and a luminosity 100,000 times that of the Sun. Use the Hertzsprung-Russell diagram to determine its approximate radius, compared to that of the Sun. – About 1,000 times larger The corona is the name of the outer atmosphere of the Sun The central region of a sunspot is about 1500 K cooler than the surrounding solar photosphere. The light from the sunspot will be redder and dimmer than the rest of the photosphere White dwarf is a star with surface temperature 10,000 K and luminosity 0.001 times that of the Sun according to the Hertzsprung-Russell diagram The Sun is a little over 100 times larger than the Earth. So, if the Earth was the width of a paperclip, then the Sun would be table Objects that emit light where to color of light depends on the temperature of the object is called a blackbody. Which of the following objects emits light based only on its temperature? --- The infrared light from a cat If the nail did not melt and it got hotter, its color would be more blue The Sun has a surface temperature of 5,800 K. If we observe an object with a much higher temperature than the Sun, then its peak color will be too blue for humans to see
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