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White dwarfs.

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Brant Lockman

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Q: What type of star has a high temperature and a high luminosity in the hr diagram?
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What does and H-R diagram relate a star's temperature to?

The Hertzsprung-Russell diagram (H-R diagram) shows the relationship between absolute magnitude, luminosity, classification, and effective temperature of stars. The diagram as originally conceived displayed the spectral type (effectively the surface temperature) of stars on the horizontal axis and the absolute magnitude (their intrinsic brightness) on the vertical axis.


What does it mean when astronomers say that a star moves form one place to another on the H-R diagram?

It means that the two measurements that are plotted on the H-R diagram - its luminosity and its spectral type (equivalent to its temperature) - change.


What Type of star has a low temperature and a low luminosity?

Robert De Niro, the years of 2020+


When does a newly forming star have the greatest luminosity?

A rotating nebula (a cloud of gas and dust) collapses under gravity. This creates a lot of heat energy. A "protostar" forms, before nuclear fusion begins. When the core temperature is high enough, hydrogen nuclei can undergo fusion and become helium, releasing nuclear energy. So, eventually the protostar becomes a "true" star and reaches the Main Sequence on the HR diagram. The newly forming star has its greatest luminosity during the earlyprotostar stage. (The protostar has a much bigger surface area than the final star.)


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".

Related questions

What type of star has a high temperature and high luminosity in the HR diagram?

White dwarfs.


What type of star has a high temperature and low luminosity in the HR diagram?

White dwarfs.


What information is needed to plot a star on the H-R diagram?

You need to know the luminosity and temperature of star in order to plot it on the HR diagram.


What information is need to plot a star on h-r diagram?

You need to know the luminosity and temperature of star in order to plot it on the HR diagram.


What does the HR diagram depict?

the relationship between a star's luminosity, temperature, absolute magnitude, and spectral type.


What does an H-R diagram compare?

The H-R diagram compares a stars surface existing temperature to its absolute luminosity. By measuring the sun from the center of diagram, the star is used for reference.


How do you determine a stars luminosity?

To determine a star's luminosity is from size and temperature.


Where a main sequence star is located on the H-R diagram depends on its temperature and its?

Main sequence stars are located on the H-R diagram based on their luminosity or absolute magnitude verses their spectral class and effective temperature.


What are the labels for x and y axis of an hr diagram?

The x axis is the temperature *Kelvin. While the y axis is the luminosity of the star.


What types of star has high temperature and high luminosity?

A white dwarf.A white dwarf.A white dwarf.A white dwarf.


What type of star has a high temperature and high luminosity?

A white dwarf.A white dwarf.A white dwarf.A white dwarf.


What type of star has a high temperature and a high luminosity?

A white dwarf.A white dwarf.A white dwarf.A white dwarf.