Measuring Stellar Temperatures Access the Active Integrated Media Module (AIMM) “Blackbody Curves” in Chapter 4 of the Discovering the Universe Web site. (a) Use the module to determine the range of temperatures over which a star’s peak wavelength is in the visible spectrum. (b) Determine whether any of the following stars have a peak wavelength in the visible spectrum: Rigel, T = 14,000 K; Deneb, T = 9500 K; Arcturus, T = 4500 K; Vega, T = 11,500 K; Betelgeuse, T = 3100 K.
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