The life expectancy of a star (E) depends on its mass (M), roughly following the model of E = M-2.5.
For a star with a mass twice that of our sun (enter 2 in place of `M`), then the lifespan will give 0.177. Our suns lifespan is around 10 billion years, so this would equate to 1.77 billion years.
How massive it is and its luminosity (the mass and luminosity correlate with each other with most stars, mainly the main sequence stars). The more mass a star has, the shorter its lifespan.
A massive collapsed star is a dead star.
Only if you "larger" you mean "more massive". The size (diameter) of a star may change quite a lot over its lifetime.
A star with a mass of 2solar masses, 2times the mass of the sun, would have a main-sequence stage of half the life of a star with the mass of our sun. More massive stars die faster, less massive stars live longer and therefore have longer main-sequence stages.
Yes we can say, life span of small stars are slower than bigger one because in the small star the nuclear fusion takes place at the moderate rate but massive stars require large amount of energy and therefore nuclear fusion consume all it's fuel in short Time As compare to small stars also mechanism of nuclear fusion in both case followed by different ways
Since it has about twice the mass of the Sun, you can expect it to be relatively young. Such massive stars burn out fairly quickly (for a star).
Yes, Sirius is about twice as massive as our sun, making it a medium mass star. It is quite a bit brighter, however, and is the second brightest star in our sky.
How massive it is and its luminosity (the mass and luminosity correlate with each other with most stars, mainly the main sequence stars). The more mass a star has, the shorter its lifespan.
its not a massive or a dwarf star
A massive collapsed star is a dead star.
How does a star form and what determines its lifespan?Read more: How_does_a_star_form_and_what_determines_its_lifespan
size
Only if you "larger" you mean "more massive". The size (diameter) of a star may change quite a lot over its lifetime.
Yes, Sirius is about twice as massive as our sun, making it a medium mass star. It is quite a bit brighter, however, and is the second brightest star in our sky.
A star with a mass of 2solar masses, 2times the mass of the sun, would have a main-sequence stage of half the life of a star with the mass of our sun. More massive stars die faster, less massive stars live longer and therefore have longer main-sequence stages.
A normal (but fairly massive) star.A normal (but fairly massive) star.A normal (but fairly massive) star.A normal (but fairly massive) star.
Yes we can say, life span of small stars are slower than bigger one because in the small star the nuclear fusion takes place at the moderate rate but massive stars require large amount of energy and therefore nuclear fusion consume all it's fuel in short Time As compare to small stars also mechanism of nuclear fusion in both case followed by different ways