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Unformatted text preview: -3 m K What is the peak wavelength of the EM waves radiated by a human? Is it visible light, or what is it? b) Look up the surface temperature of the Sun. What is its peak wavelength? 4) The apparent magnitude of the full moon is about -12.5. The brightness of the new moon is about 12% of the full moon. What is its apparent magnitude? 5) a) If Star A is 30 times brighter than Star B, what's the difference between the magnitudes of A and B, m A-m B ? b) If the detection limit of a 5 m ground-based telescope is 23 and the detection limit of the Hubble Space Telescope is 29. How many times brighter is the dimmest star that the ground-based telescope can detect than the dimmest star that the Hubble Space Telescope can detect?...
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- Spring '10