2007-10-31 07:19:40 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The Hertzsprung-Russell diagram (usually referred to by the abbreviation H-R diagram or HRD, also known as a Colour-Magnitude diagram, or CMD) shows the relationship between absolute magnitude, luminosity, classification, and effective temperature of stars.
2007-10-31 09:35:02 · answer #1 · answered by campbelp2002 7 · 0⤊ 0⤋
Stars were analyzed for size, color, and temperature - then plotted on a chart. It was somewhat surprising to find that all three factors were related. This chart is called the Hertzsprung-Russell diagram, and is used to determine the type of star being observed.
2007-10-31 14:36:04 · answer #2 · answered by quantumclaustrophobe 7 · 0⤊ 0⤋
Used to show the relationship between absolute magnitude, luminosity, classification, and effective temperature of stars.
2007-10-31 14:24:45 · answer #3 · answered by Chug-a-Lug 7 · 0⤊ 0⤋