Is+the+sun+a+giant+star?

Is the sun a giant star? The sun is not a giant star but it is just the closest star appearing immense but is an intermediate sized star

How hot is the sun? The sun is only 5,500 degrees celsius which is not very hot in comparison to other stars. When it is more blue it is more hot and when it is more red it is more cool. That is why it is yellow and not very hot compared to other ones.

How do you know how old it is? To tell how old a star is depends on the mass of the star

How do you know how hot it is? To tell how old a star is depends on the mass of the star

How often do they die and be created? Depending on the star, the lifespan varies. But on average it lives for 10's of billions of years

Why can we see them? We can only see stars becaause the light is reflected from the sun, which allows us to see the stars and sun. This is called light spectrum.

What is light spectrum?

Why can we see rainbows?

How many are discovered and visible to the human eyes?  1,000,000,000,000,000,000,000 stars are dicovered and seen from space

What are they named after?

What is a wavelength? A wavelength is the distance between a wave. This is used to distinguish different forms of light.

What is the closest and furthest star from planet earth? The closest star to earth is called Proxima Centaur and the furthest star from earth is called

What is the speed of light? The speed of light is 299,792 km/sec travelling in wavelengths. So a light year means how far light can travel in one year which is a lot!

How is the energy source light and heat produced from it? When the star goes to a temperature of 10,000,000,000 degrees celsius a nuclear reaction comes to play and hydrogen turns into helium and energy is produced.

What is a supernova? A supernova is a a big star that has exploded rapidly and shines very brightly.

Why do they twinkle? When the air moves, the dust particles obstruct the star light and stars appear to teinkle but they do not.