What is the life cycle of a star BBC Bitesize?
What is the life cycle of a star BBC Bitesize?
main sequence: star → red super giant → supernova → neutron star or black hole.
What are the stages of a stars life cycle?
Step 1 – Green – A cloud of gas and dust collapses due to gravity, creating a protostar. Step 2 – Blue – Gravitational energy powers the young star until… Step 3 – Yellow – … nuclear fusion occurs.
What are the stages of the star How did a star form essay?
A star is formed when the gas and dust making up the nebula start to contract due to their own gravitational pull. As this matter condenses due to gravitational pull, the gas and dust begin to spin. This spinning motion causes the matter to generate heat and it forms a dull red protostar (Krumenaker, 2005).
What color of star is the hottest?
Blue stars
White stars are hotter than red and yellow. Blue stars are the hottest stars of all.
What is the life cycle of a star NASA?
For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
How does the life cycle of a star change?
Stars with different masses grow and change throughout the different stages of their lives. The life cycle for a particular star depends on its size. The diagram shows the life cycles of stars that are: All stars begin life in the same way.
What causes the formation and development of stars?
Gravity and nuclear fusion reactions drive the formation and development of stars. Stars with different masses grow and change throughout the different stages of their lives. The life cycle for a particular star depends on its size.
Who is the author of the life cycle of a star?
Title The Life Cycle of a Star Author Christopher Bobby Last modified by Gentry, Stephanie Created Date 5/28/1995 4:34:56 PM Document presentation format On-screen Show (4:3)
What makes the core of a star stable?
The fusion process releases energy, which keeps the core of the star hot. During this stable phase in the life of a star, the force of gravity holding the star together is balanced by higher pressure due to the high temperatures. The Sun is at this stable phase in its life.