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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.

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Related Questions

What stars are very bright and very cool?

the ones in the sky


Large bright stars that are fairly cool are called?

Red giants.


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.


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.


Are main sequence stars mostly cool and bright?

Main sequence stars vary widely in temperature and brightness, depending on their mass. While some main sequence stars, like red dwarfs, are cool and dim, others, such as blue giants, are hot and very bright. The majority of main sequence stars, however, are found in the middle range of the spectrum, often classified as yellow or orange stars like our Sun. Thus, it is not accurate to say that main sequence stars are mostly cool and bright; they exhibit a broad range of characteristics.


What part of the modern H-R diagram do cool bright red stars appear?

top,right


What are large cool and bright stars called?

Large, cool, and bright stars are typically classified as red giants. These stars have expanded and cooled after exhausting the hydrogen fuel in their cores, leading to their large size and reddish hue. Red giants are often in a later stage of stellar evolution, and they can be significantly more luminous than smaller, cooler stars. Examples include Betelgeuse and Aldebaran.


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.


What type of stars low temperature but high luminosity?

The red giants like Betelgeuse and Antares are bright and - relatively - cool.


What type of stars has low temperature but high luminosity?

The red giants like Betelgeuse and Antares are bright and - relatively - cool.


What type of stars has high temperature but high luminosity?

The red giants like Betelgeuse and Antares are bright and - relatively - cool.


Whose stripes and bright stars?

The flag has strips and bright stars

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