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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 two star characteristics does Hertzsprung Russell diagram compare?
The HR Diagram compares the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.
What is a red gigant?
One of two groups of stars on the Hertzsprung -Russell diagram that have a different set of properties than the main sequence stars; bright, low-temperature giant stars that are enormously bright for their temperature.
How are the conditions of pressure and temperature at which two phases coexist in equilibrium shown on a phase diagram?
By a line separating the phases
What are the categories of stars shown on the HR diagram?
The Hertzsprung -Russell (H-R) Diagram is a graph that plots stars color (spectral type or surface temperature) vs. its luminosity (intrinsic brightness or absolute magnitude). On it, astronomers plot stars' color, temperature, luminosity, spectral type, and evolutionary stage. This diagram shows that there are 3 very different types of stars:Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. For these stars, the hotter they are, the brighter. These stars are in the most stable part of their existence; this stage generally lasts for about 5 billion years.As stars begin to die, they become giants and supergiants (above the main sequence). These stars have depleted their hydrogen supply and are very old. The core contracts as the outer layers expand. These stars will eventually explode (becoming a planetary nebula or supernova, depending on their mass) and then become white dwarfs, neutron stars, or black holes (again depending on their mass).Smaller stars (like our Sun) eventually become faint white dwarfs (hot, white, dim stars) that are below the main sequence. These hot, shrinking stars have depleted their nuclear fuels and will eventually become cold, dark, black dwarfs.
What two characteristics of stars are shown in the H-R diagram?
The Hertzsprung Russell diagram plots each star as a point on the diagram, with absolute magnitude along the vertical scale and surface temperature along the horizontal scale.
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 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 two star characteristics does Hertzsprung Russell diagram compare?
The HR Diagram compares the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.
What two star characteristics does the hertzsprung - Russell diagram compare?
The HR Diagram compares the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.
2. The measures of two angles in a triangle are shown in the diagram. Which equation can be used to find the value of x?
The measures of two angles in a triangle are shown in the diagram. Which equation can be used to find the value of x?
How many dots are shown for in the electron dot diagram for calcium?
two
How Two newton spring scales negligible mass are suspended a shown in this diagram?
I cannot see any scales in the non-existent diagram.
Identify two ways in which astronomers can use an H-R diagram?
Classify stars and to understand how stars change over time
What is another name for a plot of surface temperatures of stars against their absolute magnitude?
This type of diagram is often called a Hertzprung-Russell diagram after two astronomers.
What two characteristics are stars classified by?
They are classified by the amount of Light they give off, and their temperature.
