Chapter 1, Problem 54EAP

Order of Magnitude Estimate. Mathematical Insight 1.3 defines order of magnitude estimates, and in the text we estimated there are about  ${10}^{22}$  stars in the observable universe by assuming that 100 billion large galaxies each have about 100 billion stars. Now, assume that there are also 1 trillion small galaxies, but that each has only 10 million stars on average. How will this affect the estimate of the total number of stars in the observable universe? Explain your answer without calculating.