Leavitt, Shapley & Globular Clusters

Davis, John
September 2010
Amateur Astronomy Magazine;Fall2010, Issue 67, p26
The author describes the globular cluster (GC) population in the Milky Way (MW) galaxy. A background on the history of the discovery of GC by American astronomer Henrietta Swan Leavitt in the 20th century is provided. He also discusses American astronomer Harlow Shapley's studies on GC distances and the size of the MW using Leavitt's period-luminosity scale.


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