Why do average stars have longer life span than massive star a they have less fuel to burn c they burn their fuel at faster rate B they have more fuel to burn d they burn their?
Massive stars live shorter lives than the common small stars because even though they have a larger amount of hydrogen for nuclear reactions, their rate of consuming their fuel is very much greater.
Which stars burn out the fastest?
Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for about 10 billion years.
What will happen if a massive star collapse?
When a star has fused all the hydrogen in its core, nuclear reactions cease. If the star is sufficiently massive, the collapsing core may become hot enough to support more exotic nuclear reactions that consume helium and produce a variety of heavier elements up to iron.
What will happen if a low massive main sequence star runs out?
When a main sequence star begins to run out of hydrogen fuel, the star becomes a red giant or a red super giant. THE DEATH OF A LOW OR MEDIUM MASS STAR After a low or medium mass or star has become a red giant the outer parts grow bigger and drift into space, forming a cloud of gas called a planetary nebula.
How does a low mass star die?
Low mass stars use up their hydrogen fuel very slowly and consequently have long lives. Low mass stars simply die by burning up their fuel to leave behind white dwarfs (contracted low mass stars about the size of the Earth) which themselves cool and contract further to black dwarfs.
What is the final stage of existence for each type of star?
A planetary nebula is the final stage of a Sun-like star. As such, planetary nebulas allow us a glimpse into the future of our own solar system. A star like our Sun will, at the end of its life, transform into a red giant. Stars are sustained by the nuclear fusion that occurs in their core, which creates energy.
What are the 3 possible final stages of a star?
What Are the Final Stages in the Life of a Star Similar in Size to the Sun?
- Star Formation and Main Sequence. Stars are born from intergalactic dust.
- The Red Giant Phase.
- The Second Red Giant Phase.
- The White Dwarf Phase.
How can we determine if a star is in its final stage of life?
Stars are formed in clouds of gas and dust, known as nebulae. Eventually, however, the hydrogen fuel that powers the nuclear reactions within stars will begin to run out, and they will enter the final phases of their lifetime. Over time, they will expand, cool and change colour to become red giants.
Why do stars expand as they age?
The fusion in a star’s core is mostly 2 Hydrogen atoms being turned into 1 Helium atom. But the mass of 1 Helium atom is slightly less than 2 Hydrogen. Over time, stars lose mass and this causes their density to lower and thus their gravitational force to lower. If it lowers enough, they go nova and rapidly expand.