LIFE HISTORY OF A STAR (2)

The end of a star

STARS about the SAME SIZE  (or smaller) than THE SUN/ OR LOWER MASS STAR : 

• Stage 3: RED GIANT
• at this stage, helium and other light elements= fuses in core to form heavier elements.
• Stage 4: WHITE DWARF
• no more light elements left in core= fusion stops and no more radiation is released.
• due to its own gravity, star COLLAPSES on itself- and heats up from red to yellow to white= becomes a WHITE DWARF.
• Stage 5: BLACK DWARF
• stars like the sun fade out, go cold, and become BLACK DWARFS.

STARS MUCH BIGGER THAN THE SUN/ HIGHER MASS STAR:

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