Chapter 26 Reading Quizzes.docx - Chapter 26 Reading...

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Chapter 26 Reading Quizzes:The Discovery of Galaxies:1.One of the most important observations in the history of astronomy was the one byEdwin Hubble that established that there are other galaxies, quite removed from theMilky Way. How did Hubble show this?By observing a Cepheid variable in a nearbygalaxy and using it to get the distance2.The new instrument that made it possible for Edwin Hubble to demonstrate the existenceof other galaxies in the early 1920's was:The 100-inch reflector on Mount WilsonTypes of Galaxies:3.4.
6.About two thirds of the nearby spiral galaxies (which we can study in more detail) don’t
have a round central bulge, but instead show:
7.The type of galaxy that sometimes has a distinct bar of stars running across the centralregion is:
8.

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Term
Winter
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Discovery of Galaxies

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