Hertzsprung-Russell diagrams are also referred to by the abbreviation H-R diagram or HRD. The diagram was created circa 1910 by Ejnar Hertzsprung and Henry Norris Russell and represents a major step towards an understanding of stellar evolution or "the lives of stars".
To simplify, the Hertsprung-Russel diagram has a slow reverse curve from upper left to lower right. Highest luminostiy is at upper left, lowest at lower right. Along that curve is a scattergram of "main sequence" stars, hottest at the top, coolest at the bottom. At the upper right is a separate grouping of "Giants" At the lower left is dwarfs.
By there surface temperature and Brightness
Hertzsprung-Russel diagram is used to classify stars
O, B, A, F, G, K, and M (usually memorized by astrophysicists as "Oh, be a fine girl/guy, kiss me"),
can be classified through absolute luminosity, color, and surface temperature.
The Hertzsprung-Russel diagram.
A Hertzsprung-Russell diagram or H-R diagram.
The Hertzsprung-Russell diagram (H-R diagram) is a graph of stars showing the stars' luminosities or absolute magnitude versus their spectral type which is related to their effective temperature.
Its an Hertzsprung-Russel (H-R) diagram.
The Hertzsprung--Russell diagram (or H-R diagram) is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. See related link for a pictorial
That is called the HR diagram (Hertzsprung Russell) and the temperature is along the horizontal axis while the vertical axis is the star's absolute magnitude. Each star has a fixed point in this diagram, and it shows that most stars belong in a broad band on the left called the Main Sequence.
A Hertzsprung-Russell diagram or H-R diagram.
One graph used to relate stars' absolute magnitudes and their spectral types is the Hertzsprung-Russell diagram, better (and more simply) known as the H-R diagram.
Its called an HR diagram or a Hertzsprung-Russell diagram.
Astronomers classify stars.
The Hertzsprung-Russell diagram (H-R diagram) is a graph of stars showing the stars' luminosities or absolute magnitude versus their spectral type which is related to their effective temperature.
You can read a description, and find a typical graph, here:http://en.wikipedia.org/wiki/Hertzsprung-Russel_diagram"The Hertzsprung-Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. ..."You can read a description, and find a typical graph, here:http://en.wikipedia.org/wiki/Hertzsprung-Russel_diagram"The Hertzsprung-Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. ..."You can read a description, and find a typical graph, here:http://en.wikipedia.org/wiki/Hertzsprung-Russel_diagram"The Hertzsprung-Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. ..."You can read a description, and find a typical graph, here:http://en.wikipedia.org/wiki/Hertzsprung-Russel_diagram"The Hertzsprung-Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. ..."
Its an Hertzsprung-Russel (H-R) diagram.
The diagram was created by Ejnar Hertzsprung and Henry Norris Russell aound 1910.
The Hertzsprung--Russell diagram (or H-R diagram) is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. See related link for a pictorial
scatter graph of stars showing the relationship between the stars' absolute magnitudes orluminosities versus their spectral types orclassifications and effective temperatures.
The Hertzsprung--Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.Because the luminosity is low or non existent in the case of black holes, they do not appear on the HR diagram.
The Hertzsprung--Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.Because the luminosity is low or non existent in the case of black holes, they do not appear on the HR diagram.