HOW STARS ARE
FORMED AND HOW DO
HOW WERE STARS FORMED ?
STARS WERE BORN WITHIN THE CLOUDS OF
DUST AND SCATTERED THROUGHOUT MOST
•A familiar example of such as a dust
cloud is the Orion Nebula
The Orion is a diffuse nebula
situated south of the orions belt
MAIN SEQUENCE STARS
•A star the size of our Sun requires about 50 million years
to mature from the beginning of the collapse to
adulthood. Our Sun will stay in this mature phase for
about 10 million years
HOW DO STARS DIE ?
•Most stars take millions of years to die. When a
star like the Sun has burned all of its hydrogen
fuel, it expands to become a red giant while the
rest of the stars become white dwarfs then
cools down and becomes invisible.
Tip: The larger a star, the shorter its
life, although all but the most massive
stars live for billions of years
HOW WERE STARS FORMED AGAIN?
HOW DO STARS DIE?
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