The star is of portion of hot gas from stellar nebula like the sun the star can hot or cols or small and bigger
Types of start:
exist 4 types of stars
Supergiant
Giant
Mean sequence
and White dwarf
What is H-R Diagram
Is the graphical tool can to help us to classify the stars by temperature, color, size, type and name .
Nuclear Fusion :
Is the chemical composition by hydrogen and helium is the process of energy of the star
The life Cycle of a star:
