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What are the very bright starts in the upper right of an h-r diagram called?
Hot stars are found in the left hand side of the diagram, cool stars the right, bright stars at the top, and lastly the faint stars are located at the bottom.
What is known about stars that are placed toward the top of the H-R diagram?
They are very bright or luminous stars.
Where are cool red giant stars on the H-R?
Cool red giant stars are located in the upper right corner of the Hertzsprung-Russell diagram, where they are both cool (low temperature) and bright (high luminosity). These stars have evolved from main sequence stars and are in a late stage of stellar evolution.
Why do stars appear in the night and not in the day?
The faint light of the stars is masked by the bright light of the sun.
What is a gigantism?
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.
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.
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 H-R diagram constructed from the data on the brightest stars differs from the diagram constructed from data on the nearest stars because the brightest stars are typically more massive and have higher luminosities, while the nearest stars may include a mix of different masses and luminosities. This leads to a different distribution of stars in the diagram, with the brightest stars clustering in different regions compared to the nearest stars.
What determines a star's color in the Hertzsprung-Russell diagram?
A star's color in the Hertzsprung-Russell diagram is determined by its surface temperature. Hotter stars appear blue or white, while cooler stars appear red.
Why don't stars appear in photos of astronauts in space?
the light from sun is reflected &it is too bright
What are the colors of the HR Diagram?
The colors of the HR Diagram are:BlueBlue-WhiteYellowOrangeRed-OrangeRed
Why are there no black holes or neutron stars on the H-R diagram?
The Hertzsprung--Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.Because the luminosity is low or non existent in the case of black holes, they do not appear on the HR diagram.
What stars are cool and bright stars?
To be bright you need to be hot, close or have a large surface area. The brightest coolest stars are red super giants. They have such a large surface area, that even though their surface temperature is cool - in star terms - their large surface area makes them appear bright.
