GCSE Astronomy Topic 13: Exploring Starlight - Using the HR diagram to determine stellar distances
How do astronomers calculate distances to stars using the Hertzsprung-Russell diagram?
This lesson explains how stellar distances are estimated, and includes a task for students to complete which requires them to plot 5 stars on the HR diagram and then use data to estimate their distance from Earth in Parsecs.
Printable resources are included in the downloaded PowerPoint.
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