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Why does the night sky have many different brightness stars but when you look at a HR diagram they are plotted with very similar magnitudes?
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What is a H-R diagram and what two characteristics of stars are compared on it?
It is a diagram on which stars are plotted according to their absolute magnitudes (or luminosities) against their stellar classifications (or effective temperatures).
What variables are on the H-R diagram?
The Hertzsprung-Russell diagram is a scatter graph of known stars. It shows the absolute magnitudes (actual brightness at a set distance) versus the spectral type or classification (which is effectively what their temperature is). Stars, when plotted onto this graph, tend to fall into set patterns. The position of a star within a pattern (or sequence) can give further information, such as how old the star is.
What is plotted on the horizontal axis of an H-R diagram?
If you mean a Hertzsprung-Russell Diagram, which plots stars color, temperature, and absolute magnitude (see related link), then it looks like color and spectral class (temperature) are plotted on horizontal, and Absolute Magnitude/Lumenoscity are plotted on the vertical.
What does the hertzsprung-Russell diagram measure?
The largest stars would also be the brightest and that would put them near the top of the Hertzprung Russell diagram. The Sky Catalogue 2000.0 lists 50,071 stars of brightness down to magnitude 8.0. The brightest star is Rho Cassiopeiae with an absolute magnitude of -9.5, which is about 400,000 times more luminous than the Sun, and its spectrum is G2 like the Sun.
What does the main sequence star represent?
A main-sequence star is one that is along a curve where the majority of stars are located, when plotted in an H-R diagram. It is a star that gets its energy from fusing hydrogen-1 into helium-4.
What two caracteristics of a star are plotted on the Hertzsprung Russell diagram?
Brightness and Temperature are the two characteristics plotted on the H-R diagram a diagram used to plot the absolute magnitude of stars and their temperatures
What two caracteristics of a star are plotted on the Hertzsprung-Russell diagram?
Brightness and Temperature are the two characteristics plotted on the H-R diagram a diagram used to plot the absolute magnitude of stars and their temperatures
What is a H-R diagram and what two characteristics of stars are compared on it?
It is a diagram on which stars are plotted according to their absolute magnitudes (or luminosities) against their stellar classifications (or effective temperatures).
When the absolute magnitudes or brightnesses of stars are plotted against their surface temperatures or colors we obtain what?
This is usually called the Hertsprung-Russell diagram.
What variables are on the H-R diagram?
The Hertzsprung-Russell diagram is a scatter graph of known stars. It shows the absolute magnitudes (actual brightness at a set distance) versus the spectral type or classification (which is effectively what their temperature is). Stars, when plotted onto this graph, tend to fall into set patterns. The position of a star within a pattern (or sequence) can give further information, such as how old the star is.
Where are most stars plotted on an HR diagram?
Main sequence
What is the purpose of the H-R diagram?
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".
What is plotted on the horizontal axis of an H-R diagram?
If you mean a Hertzsprung-Russell Diagram, which plots stars color, temperature, and absolute magnitude (see related link), then it looks like color and spectral class (temperature) are plotted on horizontal, and Absolute Magnitude/Lumenoscity are plotted on the vertical.
Where are the great majority of stars plotted on an H-R diagram?
in the main sequence
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.
What is the chart called when the paired data (the dependent and independent variables) are plotted?
scatter diagram
What is the chart called when the paired data the dependent and independent variables are plotted?
scatter diagram
