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That is short for Hertzsprung-Russell diagram. It is a diagram in which the brightness of stars is plotted against their surface temperature (which can be deduced from their color). It turns out that most stars (basically, the ones that get their energy from fusion of hydrogen to helium) are on, or close to, one particular curve in the diagram - the so-called "main sequence".
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoH-R diagrams are used to plot brightness against size and spectrum of a star. For eg, The sun is a medium sized star or a G type star with luminosity showed by surface temperature of 5, 500 degrees centigrade.
Wiki User
∙ 12y agoto classify stars based on their size and brightness
Wiki User
∙ 12y agoAn HR diagram is used to show how the stars are aliened in the universe and it also show the different groups they are in i hope I answered your question.
Wiki User
∙ 10y agoit is useful because it helps them classify star by color temperature and evolution stage
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What part of the HR diagram are Red supergiant stars in?
Up at the top right. If you look on the Australian Telescope National facility website, their HR diagram shows this clearly.
What is the approximate position of the Sun In the HR diagram?
Slightly to the right of centre on the main sequence. If you look on the Australian Telescope National facility website, their HR diagram shows the position of the sun.
What type of star has a high temperature and a high luminosity in the hr diagram?
White dwarfs.
What are the two ways you can classify stars?
The two ways are by their surface temperature (spectrum) and by their absolute magnitude (intrinsic brightness). The HR diagram has spectrum along the horizontal axis and absolute magnitude along the vertical axis. Each star occupies a point in the HR diagram.
What is the purpose of drawing a motion diagram?
because it is fun
What are the colors of the HR Diagram?
The colors of the HR Diagram are:BlueBlue-WhiteYellowOrangeRed-OrangeRed
Why is the hr diagram important to scientist?
The main reason that the HR Diagram is so useful and important to scientists is, you can tell the size of the star by plotting it on the HR Diagram. The different sizes of stars form a pattern on the HR diagram.
Where are stars on the hr diagram?
The HR diagram contains only stars - so everywhere.
Why is there no neurton stars in the hr diagram?
Of course they are on the HR diagram. They are simply not on the main sequence.
What is the brightest star on the Hr diagram?
i don't know about the hr diagram but the brightest star known is r136a1
What chart show is the characteristics of a star?
HR diagram
What are the smallest stars in the HR diagram?
The red dwarves.
What part of the HR diagram are Red supergiant stars in?
Up at the top right. If you look on the Australian Telescope National facility website, their HR diagram shows this clearly.
Why are black dwarfs not on a HR diagram?
Black holes dont appear on HR diagrams because HR diagrams are used to classify stars not find black holes Black holes emit no visible light (are not luminous enough) and therefore do not appear in the HR diagram.
What is the purpose of the venn diagram?
the purpose of the venn diagram is to know what are the differences and the similarities between them.
Where is the Sun in the H-R diagram?
Our Sun is a G2V star and will thus appear in the centre of the HR diagram.
What types of stars are found on an HR diagram?
All stars.
