Unit Nine: Galaxies
(1) Shapely-Curtis Debate
(2) Hubble settles the Debate: The Cepheid Yardstick
(3) Distribution of Galaxies
(4) Clusters of Galaxies
(a) Local Group
(b) Galaxy Clusters
(c) Superclusters
(5) Types of Galaxies
(a) Spirals
(b) Ellipticals
(c) Others
(6) Active Galaxies: Quasars
(7) Hubble Law of Recession of Galaxies |
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