Red+Giants+2A




 * RED GIANT**

When a star's life cycle starts to burn out, The temperature inside its center, or core, starts to increase. This causes the star to expand. when stars produce light, the change hydrogen into helium and in time, the helium sinks into the center of the star with hydrogen as an outer layer. Eventually the star does not have enough energy because it loses hydrogen. When the star starts to die the pressure and temperature increase causing helium to change into carbon. The burning of helium causes the star to expand, creating a red giant star.



Red Giants are classified in the M class of stars which means that they are the coolest and dimmest stars.