Stars
This describes what stars are divided into
what are concentric circles
Most very massive stars fall in the ________ range
what is 10-25
This element is the first to be used as fuel
What is H
This is the energy that is released by a helium flash
What is 10^14 energy of the sun/s
Elements heavier than ________ are fused during a supernova
What is Iron
This property of stars describes that the total mass is the sum of all the shell
What is conservation of mass
This is the classification of brown dwarfs
What are compact objects
This is the temperature that He begins to fuse
What is 100,000,000K
This is the shell outside of a silicon core
What is iron
This is how many years it will take for the sun to become a red giant
What is 5 billion years
What is luminosity
This percentage of stars are main sequence stars
What is 90%
The explosion that some stars have to begin fusion
What is helium flash
This is the shell outside of a Helium core
What is Hydrogen
This term describes atoms being so compacted that electrons can not change energy levels
Main Sequence means
What is fuses He to H, what is fusion
This is the reason red dwarfs can last for billions of years
What is they burn fuel slowly
This is the density that can cause a helium flash
what is 1,000,000 g/cm3
This is the shell outside of a Carbon-Oxygen Core
What is He
This slowly happening to the core of stars over time
What is getting bigger, what is getting hotter, what is getting more dense
This prevents massive clouds from forming super massive stars
What is fragmenting
This term describes the left over particles from fusion
What are ashes
What is broken/ it breaks
This is the temp needed to fuse Carbon
What is 600,000,000 K
When the sun dies it will become a
What is a red dwarf