SPACE SERIES - 3

LIFE CYCLE OF A STAR - 1

 

SUN:

         Sun is in our center  of our solar system .It is nearly a perfect sphere of heat and light .It produce heat and light through nuclear fusion.

 

TYPES OF STAR :

 

                      1.RED GIANT STAR

                      2.RED SUPERGIANT STAR

                      3.BLUE GIANT STAR

                      4.WHITE  DWARF STAR

                      5.YELLOW  DWARF STAR

                      6.RED  DWARF STAR

                      7.BROWN  DWARF STAR

 

RED GIANT STAR :

                               A red giant is a star in its death age. it has slowly swollen up to many times its original size. A luminous giant star of low or intermediate mass in a late phase of stellar evolution.

 

RED SUPER GIANT STAR :

                            A red supergiant is an aging giant star that has consumed its core's supply of hydrogen fuel. Helium has accumulated in the core, and hydrogen is now undergoing nuclear fusion in the outer shells. These shells then expand, and the now cooler star takes on a red color. They are the largest known stars.

 

                              

        

BLUE GIANT STAR :

                                A bluish star that has a high surface temperature and a diameter that is large relative to the sun Later, just a few thousand years before the supernova explosion, the red giant apparently lost some of its girth, forming a blue giant, which emits a faster, lower density wind.