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Some white dwarfs are older than the sun, and some are not. More massive red dwarfs form from stars larger than the sun, which do not last as long.
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How is it possible for white dwarfs of have a lower luminosity than the sun even though the sun is much cooler than the white dwarfs?
Because luminosity is a measure of brightness over distance. Also white dwarfs are a hundred times smaller than the Sun. Most white dwarfs are a long way away and thus are difficult to see.
What type of star is less bright than the sun?
On the main sequence, red dwarfs and orange dwarfs are less bright than the sun. Our sun is a yellow dwarf.
What kind of stars become white dwarfs?
small ones, like our sun and smaller.
Is a star older or younger than the sun?
The sun is a star. Some stars are older than the sun while others are younger.
Is the sun bigger or smaller than other stars?
Our sun is about average compared to other stars. Some are much smaller (white dwarfs) and others are much larger.
How is it possible for white dwarfs of have a lower luminosity than the sun even though the sun is much cooler than the white dwarfs?
Because luminosity is a measure of brightness over distance. Also white dwarfs are a hundred times smaller than the Sun. Most white dwarfs are a long way away and thus are difficult to see.
How can dwarfs be so bright when they are smaller than the sun?
Dwarfs are bright because they are galaxies which have their own stars. They are not closer to the earth than the sun.
What type of star is less bright than the sun?
On the main sequence, red dwarfs and orange dwarfs are less bright than the sun. Our sun is a yellow dwarf.
How is it possinle for whit dwarfs to have a lower luminosity than the sun even though the sun is much cooler than the white dwarf?
Luminosity will also depend on the surface area. The Sun has about 10,000 times the surface area of a typical white dwarf.
What type of star forms a white dwarfs?
Stars like our Sun.
Which scientist proved that the stars with mass less than 1.44 times the mass of the sun end up as white dwarfs?
S. Chandrasekhar
Why do sun like stars turn into white dwarfs?
It is because it collapses after it has run out of "fuel".
What kind of stars become white dwarfs?
small ones, like our sun and smaller.
What happens to stars which are less massive than sun?
Stars with more than about 80% of the Sun's mass behave like the Sun. They should eventually become red giant stars then white dwarf stars. Stars with mass of between about 8% and 80% of the Sun's mass are red dwarf stars. Below that come the "brown dwarfs, which aren't really true stars at all. The red dwarfs cannot fuse helium, so they simply become "white dwarf" stars when they have used up all their hydrogen "fuel".
Is white skin more prone to wrinkles than black?
No but if you tan alot in the sun, when your older you can have alot of wrinkles.
Is a star older or younger than the sun?
The sun is a star. Some stars are older than the sun while others are younger.
Will the Sun explode once it becomes a white dwarf?
No. White dwarfs can only produce explosions in close binary systems.
