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What is known about stars that are placed toward the top of the H-R diagram?
Wiki User
∙ 11y ago
They are very bright or luminous stars.
Wiki User
∙ 11y ago
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Where are 90 percent of stars on hr diagram?
main-sequence stars
What is anH-R diagram?
That's short for Hertzsprung-Russel diagram. It is a diagram in which the total luminosity versus color (and therefore temperature) of many stars is plotted.
Interpret an H-R diagram?
An H-R Diagram (Hertzsprung and Russell) is used to classify stars based on their size and brightness. The main sequence stars, such as our sun, are the medium stars, and take up the middle f the diagram, while the giants and dwarves are located on either side. http://www.eso.org/public/outreach/eduoff/cas/cas2002/cas-projects/bulgaria_comaber_1/hr_local.gif <- shows what an H-R diagram looks like.
What is a constellation that is a shape of a quadrilateral?
The Lepus Constellation, "Lepus" meaning 'Hare'. The formation of the quadrilateral stars is known as 'Arsh-al-Jawza'.
What the colors on the H-R diagram mean?
In earlier Hertzsprung-Russell diagrams, the colours, as defined by the horizontal axis, showed the spectral type of the stars. This was an ordinal scale, not an exact numerical scale. The ordering was according to the surface temperature of the stars. More recently, that has been replaced by the B-V colour scale. This is based on UBV photometry, where the amount of light given out by stars is measured in the ultraviolet (wavelength = 364 nm), blue (442 nm), and visual (540 nm) regions of the spectrum. The value of V is subtracted from B and this is the B-V colour index which is used to colour-code stars. As a star gets cooler and therefore more red, the B-V colour index increases. Hot stars have a small B-V and cool stars have a large B-V.
Why does the H-R diagram constructed from the data on the brightest stars differ so much from the diagram constructed data on the nearest stars?
The nearest stars - assuming all stars up to a certain distance are actually known - are representative of the general star population. The brightest stars are not. They are... brighter than the average stars.
A graph used to study the stars is?
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.
Where are stars on the hr diagram?
The HR diagram contains only stars - so everywhere.
What is a b-r diagram?
A Hertzsprung-Russell (H-R) diagram, also known as a color-magnitude diagram, is a graph that plots stars based on their absolute magnitude (brightness) and spectral type (color). It is a valuable tool for studying the properties and evolutionary stage of stars within a specific population.
What is the brightest star on the H-R diagram?
The "supergiant" stars are the brightest stars on the H-R diagram.
What types of stars are found on an HR diagram?
All stars.
Why is it known as a Main sequence?
It's the main sequence because on the H-R diagram most of the stars fall on or near this line.
Most of the stars on the HR Diagram are classified as which type of star?
stars there called stars
Are most of the stars on the HR diagram are classified as which type of star?
stars there called stars
Where are 90 percent of stars on hr diagram?
main-sequence stars
What diagram classifies stars on a temperature- luminosity graph?
A Hertzsprung-Russell diagram or H-R diagram.
Does the H-R diagram classify stars by the amount of heat they create?
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.
