UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 17, Problem 34Q
To determine
The reason behind the relation of color ratio of a star with its surface temperature.
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Chapter 17 Solutions
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
Ch. 17 - Prob. 1CCCh. 17 - Prob. 2CCCh. 17 - Prob. 3CCCh. 17 - Prob. 4CCCh. 17 - Prob. 5CCCh. 17 - Prob. 6CCCh. 17 - Prob. 7CCCh. 17 - Prob. 8CCCh. 17 - Prob. 9CCCh. 17 - Prob. 10CC
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- A G2 star has a luminosity 100 times that of the Sun. What kind of star is it? How does its radius compare with that of the Sun?arrow_forwardTable 17.2 lists the temperature ranges that correspond to the different spectral types. What part of the star do these temperatures refer to? Why?arrow_forwardExplain what dispersion is and how astronomers use this phenomenon to study a star’s light.arrow_forward
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- The star Betelgeuse has a temperature of 3400 K and a luminosity of 13,200 LSun. Calculate the radius of Betelgeuse relative to the Sun.arrow_forwardThe spectrum of a typical star shows absorption lines at different wavelengths than their laboratory values. If the observed wavelength is less than its laboratory value of 656.3 nm, one can conclude that... A. The separation between Earth and the star is decreasing. B. The separation between Earth and the star is increasing. C. The separation between Earth and the star is unchanging D. No conclusion is possible.arrow_forwardA star is moving toward Earth with a radial velocity (speed directly toward or away from Earth) of 40,000 km/s. If we take a spectrum of this star’s light, will we find it to be red shifted or blue shifted? By what fraction are the wavelengths in this star’s spectrum shifted? [Answer: λ0/λ = 0.88]arrow_forward
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