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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.
What else can I help you with?
How long would main sequence star last if twice as massive as the sun?
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.
Is the lifetime of a massive star shorter or longer than a star like the sunwhy?
The lifetime of a massive star is shorter than that of a star like the sun. Massive stars have more fuel to burn but burn it at a faster rate due to their higher core temperatures and luminosities. This leads to a shorter lifespan for massive stars compared to sun-like stars.
What is a massive collapsed star?
A massive collapsed star is a dead star.
Are larger stars brighter but have a short lifespan?
Only if you "larger" you mean "more massive". The size (diameter) of a star may change quite a lot over its lifetime.
Is the lifespan of small stars are much slower or faster than a 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
How long would main sequence star last if twice as massive as the sun?
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.
Is sirius a young star?
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).
Is sirius a medium 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.
Is the lifetime of a massive star shorter or longer than a star like the sunwhy?
The lifetime of a massive star is shorter than that of a star like the sun. Massive stars have more fuel to burn but burn it at a faster rate due to their higher core temperatures and luminosities. This leads to a shorter lifespan for massive stars compared to sun-like stars.
Is the sun a massive star or a dwarf star?
its not a massive or a dwarf star
What is a massive collapsed star?
A massive collapsed star is a dead star.
Is Sirius a medium mass 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 long a star lives and what it becomes at the end of its life depend primarily on?
size
Are larger stars brighter but have a short lifespan?
Only if you "larger" you mean "more massive". The size (diameter) of a star may change quite a lot over its lifetime.
How does a star form and what determines its lifespan?
How does a star form and what determines its lifespan?Read more: How_does_a_star_form_and_what_determines_its_lifespan
What is before a neutron star?
A normal (but fairly massive) star.A normal (but fairly massive) star.A normal (but fairly massive) star.A normal (but fairly massive) star.
Is the lifespan of small stars are much slower or faster than a 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
