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How do astronomers use the Hertzsprung-Russel Diagram?

April 26, 2017astronomers Astronomy Astronomy & Space diagram hertzsprung-russel Mathematics

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How do astronomers use the Hertzsprung-Russel Diagram?

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The H-R diagram can be thought of as a graph, with color (temperature) on the x-axis and luminosity on the y-axis. Since stars go through a definite “life cycle” which can be mapped on the H-R diagram, a star’s location on the diagram can indicate both its mass and its relative age.