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Are main sequence stars all alike in their luminosity and temperature?
Wiki User
∙ 8y ago
No. Main sequence stars vary greatly in both temperature and luminosity. The least massive stars, red dwarfs, can have temperatures as low as 2,300 Kelvin and luminosity as low as 0.015% that of the sun. The most massive stars, which are blue in color can have temperatures as high as 50,000 Kelvin and may be hundreds of thousands times more luminous than the sun.
Wiki User
∙ 8y ago
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Which of the following luminosity classes refers to stars on the main sequence?
The basic luminosity classes are: I for supergiants, III for giants, and V for main-sequence stars.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What would be the approximate temperature of a star with a luminosity 100 times greatera than the sun?
Assuming main sequence stars - the temperature would be about 15,000 Kelvin.
What is the rleationship between luminosity and tempeature for stars on the main sequence?
On a logarithmic scale for luminosity, it is quite close to a negative linear relationship.
What is the general relationship between the temperature and the luminosity of main sequence stars?
The scatter plot of the relationship between a star's temperature and luminosity is represented by the Hertzsprung-Russell diagram. In a standard H-R diagram the horizontal axis shows the [surface] temperature, increasing from right to left, while the vertical axis shows luminosity increasing from bottom to top. When both axis are on a logarithmic scale, the main sequence stars from a diagonal belt stretching from top right (very hot and very luminous) to bottom left (not so hot and not so luminous).
Which statement describes the general relationship between temperature and luminosity of main sequence stars?
as surface temperature increases, luminosity increases
Which of the following luminosity classes refers to stars on the main sequence?
The basic luminosity classes are: I for supergiants, III for giants, and V for main-sequence stars.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What would be the approximate temperature of a star with a luminosity 100 times greatera than the sun?
Assuming main sequence stars - the temperature would be about 15,000 Kelvin.
What is the rleationship between luminosity and tempeature for stars on the main sequence?
On a logarithmic scale for luminosity, it is quite close to a negative linear relationship.
Which type of star best obey mass-luminosity relation?
Main sequence stars
Are main sequence stars called medium sized stars?
No. Main sequence stars are simply stars that are fusing hydrogen into helium and have a specific relationship between color and luminosity. They range from red dwarfs to large O-type main sequence stars.
What is the general relationship between the temperature and the luminosity of main sequence stars?
The scatter plot of the relationship between a star's temperature and luminosity is represented by the Hertzsprung-Russell diagram. In a standard H-R diagram the horizontal axis shows the [surface] temperature, increasing from right to left, while the vertical axis shows luminosity increasing from bottom to top. When both axis are on a logarithmic scale, the main sequence stars from a diagonal belt stretching from top right (very hot and very luminous) to bottom left (not so hot and not so luminous).
Does An HR diagram plots a stars luminosity and surface temperature?
Yes.
The hr diagram graphs what 2 things?
The temperature and luminosity of stars.
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 does the life span of a star depend on?
How massive it is and its luminosity (the mass and luminosity correlate with each other with most stars, mainly the main sequence stars). The more mass a star has, the shorter its lifespan.
