21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 5.4, Problem 5.4CYU
To determine
The ranking of the stars from coolest to hottest.
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Chapter 5 Solutions
21st Century Astronomy
Ch. 5.1 - Prob. 5.1ACYUCh. 5.1 - Prob. 5.1BCYUCh. 5.2 - Prob. 5.2CYUCh. 5.3 - Prob. 5.3CYUCh. 5.4 - Prob. 5.4CYUCh. 5.5 - Prob. 5.5CYUCh. 5 - Prob. 1QPCh. 5 - Prob. 2QPCh. 5 - Prob. 3QPCh. 5 - Prob. 4QP
Ch. 5 - Prob. 5QPCh. 5 - Prob. 6QPCh. 5 - Prob. 7QPCh. 5 - Prob. 8QPCh. 5 - Prob. 9QPCh. 5 - Prob. 10QPCh. 5 - Prob. 11QPCh. 5 - Prob. 12QPCh. 5 - Prob. 13QPCh. 5 - Prob. 14QPCh. 5 - Prob. 15QPCh. 5 - Prob. 16QPCh. 5 - Prob. 17QPCh. 5 - Prob. 18QPCh. 5 - Prob. 19QPCh. 5 - Prob. 20QPCh. 5 - Prob. 21QPCh. 5 - Prob. 22QPCh. 5 - Prob. 23QPCh. 5 - Prob. 24QPCh. 5 - Prob. 25QPCh. 5 - Prob. 26QPCh. 5 - Prob. 27QPCh. 5 - Prob. 28QPCh. 5 - Prob. 29QPCh. 5 - Prob. 30QPCh. 5 - Prob. 31QPCh. 5 - Prob. 32QPCh. 5 - Prob. 33QPCh. 5 - Prob. 34QPCh. 5 - Prob. 35QPCh. 5 - Prob. 36QPCh. 5 - Prob. 37QPCh. 5 - Prob. 38QPCh. 5 - Prob. 39QPCh. 5 - Prob. 40QPCh. 5 - Prob. 41QPCh. 5 - Prob. 42QPCh. 5 - Prob. 43QPCh. 5 - Prob. 44QPCh. 5 - Prob. 45QP
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- Explain what Joseph Fraunhofer discovered about stellar spectra.arrow_forwardThe greenhouse effect can be explained easily if you understand the laws of blackbody radiation. A greenhouse gas blocks the transmission of infrared light. Given that the incoming light to Earth is sunlight with a characteristic temperature of 5800 K (which peaks in the visible part of the spectrum) and the outgoing light from Earth has a characteristic temperature of about 300 K (which peaks in the infrared part of the spectrum), explain how greenhouse gases cause Earth to warm up. As part of your answer, discuss that greenhouse gases block both incoming and outgoing infrared light. Explain why these two effects don’t simply cancel each other, leading to no net temperature change.arrow_forwardSam, a college student, just bought a new car. Sam’s friend Adam, a graduate student in astronomy, asks Sam for a ride. In the car, Adam remarks that the colors on the temperature control are wrong. Why did he say that? Figure 17.17 (credit: modification of work by Michael Sheehan)arrow_forward
- We see color because visible light represents wavelengths that are absorbed. True Falsearrow_forwardThe visible spectrum of sunlight shows a range of colors from red to violet. This spectrum has numerous dark lines spread throughout it. Noting that the surface of the Sun is much cooler than the interior, so that the surface is comparable to a cool gas through which light passes, which a. The cooler, denser surface material scatters certain wavelengths of light, forming dark lines. b. The atoms at the surface absorb certain wavelengths of light, causing the dark lines at those wavelengths. c. The atoms in the Sun’s interior emit light of specific wavelength, so that parts of the spectrum are dark. d. The atoms at the surface are excited by the high interior temperatures, so that the dark lines are merely wavelengths at which those atoms don’t emit energy.arrow_forwardWhat is the true color of water? Explain.arrow_forward
- . True or False: A continuous spectrum consists of ablending of colors. ___________arrow_forwardThe electromagnetic spectrum contains more than just the visible light you see. 1. Explain where infrared and ultraviolet light fall on the spectrum, according to their frequencies. 2. Name one other form of energy that is in the electromagnetic spectrum.arrow_forwardChoose the BEST answer to the following: The color of light most intense in the solar radiation curve is (a) infrared. (b) red. (c) yellow-green. (d) violet.arrow_forward
- The sun emits white light, and yet we have all noticed that it looks a bit yellow/red when you see it from the earth, especially at sunset and sunrise. You may have also heard that the sky is blue. Explain these facts using the colors discussed in this lessonarrow_forwardHuman eyes are best equiped to see light which is in the yellow-green part of the spectrum because the surface of the sun is about 5000 K. If the surface of the sun were only half as hot, where would the peak in the spectrum be? A) UV B) Blue C) Infrared D) Redarrow_forward3. Which of the following statement is correct? A. Violet is less energetic than blue B. Yellow is brighter than orange. C. Orange is energetic than red D. Visible light may different frequencies but of the same energyarrow_forward
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