Red giants.
This is a beautiful cluster of stars called The Pleides.
Hercules is large, but it doesn't contain any really bright stars. (The globular cluster called M13 is of interest.) These are the brightest stars (apparent magnitude) in Hercules: Kornephoros, Zeta Herculis, Sarin, Pi Herculis, Rasalgethi.
Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.
stars stars stars stars
The large hot stars are typically called "blue-white" stars or also Blue Giants. Cooler large stars are called Red Giants.
They are red giants.
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.
eruption
No, it is not a dwarf star. It's fairly large as stars go, but nowhere near the largest. However, because it is both fairly large and fairly close, Sirius is one of the brighter stars in our sky.
They explode
You and a friend are looking at the star and you notice two stars close together one bright and the other fairly dim your friend comments that the bright star must emit much more light. This might not be true because the other star could just be farther away or smaller.
This is a beautiful cluster of stars called The Pleides.
Absolute magnitude: they are extremely bright. Temperature: their surface temperature is fairly low.
Hercules is large, but it doesn't contain any really bright stars. (The globular cluster called M13 is of interest.) These are the brightest stars (apparent magnitude) in Hercules: Kornephoros, Zeta Herculis, Sarin, Pi Herculis, Rasalgethi.
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.
Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.Generally the red stars are colder, the blue stars are hotter.Apparent brightness has nothing to do with this. A bright-looking star may simply be nearer to Earth. It may also have a large surface area.
The flag has strips and bright stars