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The Life Cycle of a star
- Protostar
- Main sequence star
- Red SUPER giant
- Supernova
- Neutron Star
- EXPLODING supernova THROWS
OUTER LAYERS OF DUST + GAS into
space
- VERY DENSE CORE IS LEFT
- VERY DENSE CORE IS LEFT
- EXPLODING supernova THROWS
OUTER LAYERS OF DUST + GAS into
space
- Black Hole
- If the star is big enough, IT WILL THEN BECOME A BLACK
HOLE
- If the star is big enough, IT WILL THEN BECOME A BLACK
HOLE
- The above EXPLODES to form a supernova
- Elements HEAVIER THAN IRON
are made
- They are ejected into the
universe to form new stars/
planets
- They are ejected into the
universe to form new stars/
planets
- Neutron Star
- Stars BIGGER than our sun
- It's red because THE SURFACE COOLS
- UNDERGOES MORE FUSION, STAR
EXPANDS AND CONTRACTS MANY TIMES
- STARTS TO GLOW BRIGHTLY AGAIN
- STARTS TO GLOW BRIGHTLY AGAIN
- Elements AS HEAVY as iron are formed
- Supernova
- Red giant
- The fuel for the main sequence star
(HYDROGEN) RUNS OUT
- Elements SUCH AS
IRON are made by
NUCLEAR FUSION OF
HELIUM
- Elements SUCH AS
IRON are made by
NUCLEAR FUSION OF
HELIUM
- Planetary Nebula
- White Dwarf
- The left over is a dense, solid core
- Black Dwarf
- The WHITE DWARF COOLS
- This will eventually DISAPPEAR
- The WHITE DWARF COOLS
- The left over is a dense, solid core
- Red giant BECOMES UNSTABLE and
EJECTS OUTER LAYER
- White Dwarf
- The fuel for the main sequence star
(HYDROGEN) RUNS OUT
- GRAVITATIONAL ENERGY BECOMES HEAT ENERGY
- THIS CAUSES TEMPERATURE RISE
- THIS CAUSES TEMPERATURE RISE
- HYDROGEN undergo NUCLEAR
FUSION to form HELIUM
- They give out HEAT and LIGHT
- They give out HEAT and LIGHT
- The star enters stable period, GRAVITATIONAL FORCES = OUTWARD PRESSURE
- THE STAR CAN STAY LIKE THIS FOR BILLIONS OF YEARS
- Red SUPER giant
- Starts as clouds of dust and gas
- FORCE OF
GRAVITY makes
the gas and dust
spiral together
- Main sequence star
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