Hertzsprung–Russell diagram
Scatter plot of stars showing the relationship of luminosity to stellar classification
Hertzsprung–Russell diagram
A Hertzsprung–Russell diagram (abbreviated as H–R diagram, HR diagram or HRD) is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities and their stellar classifications or effective temperatures. It is also sometimes called a color magnitude diagram. The diagram was created independently in 1911 by Ejnar Hertzsprung and by Henry Norris Russell in 1913, and represented a major step towards an understanding of stellar evolution.
Read on Wikipedia · Image Richard Powell, CC BY-SA 2.5
Open boosters, collect cards and trade them. Free to play.
Play for free