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The life of a star

The life of a star. A Star is Born. From Nebula to Protostar … Nebula Large cloud of gas and dust In the densest part of nebula, gravity pulls gas and dust together As it contracts, it heats up When large enough, a Protostar is formed. A Star is Born. From Nebula to Protostar …

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The life of a star

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  1. The life of a star

  2. A Star is Born • From Nebula to Protostar… • Nebula • Large cloud of gas and dust • In the densest part of nebula, gravity pulls gas and dust together • As it contracts, it heats up • When large enough, a Protostaris formed

  3. A Star is Born • From Nebula to Protostar… • Protostar • First stage in a star’s life • Low and Medium mass protostarscreate low-mass or medium-mass stars • High-mass protostarscreate high-mass stars

  4. Everything has an end … • From Star to giant • giants • Star begins to run out of hydrogen • Core shrinks, outer portion expands • Low and Medium mass stars turn into Red giants • High-mass stars turn into Supergiants

  5. Everything has an end … • Red Giant death • Planetary nebula • Glowing cloud of gas • Very brilliant • White Dwarf • Extremely dense (1,000,000 times as dense as the sun)

  6. Everything has an end … • Supergiant death • Supernova • Sudden explosion of Supergiant • Explosion sends elements into space to potentially become other nebula • Neutron Star • Smaller and more massive than White Dwarf • Spinning Neutron stars are called Pulsars • Black Holes • Gravity so strong, nothing escapes • Created only by the largest stars

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