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Transcript 
Stage 1 (Nebula)
• A nebula is a cloud of dust
and gas, composed primarily
of ____________
• Birthplace of stars
Cone Nebula
Ring Nebula
Rosetta Nebula
Ant Nebula
Eagle Nebula
How did our sun and solar system
form?
A
C
B
D
Stage 2 (_______________Stage)
• ____________ stage of stars life (90%)
• Nuclear __________ is occurring
______________ (H) is being converted
into ______________ (He)
• Stage our sun is in!
HR Diagram
(Hertzsprung-Russell diagram)
• Show relationship between __________________ (brightness) and
_____________________.
90% of stars are
Main Sequence
Our Sun
Stage 3 (_______ Giant)
Massive & Super massive = Super red giant
• Star runs out of
____________
and uses
____________
as it fuel source.
• Helium changes
into __________.
• Grows very large
/ gets cooler on
the surface.
Our sun
Stage 4
Massive & super massive = Supernova
• __________ stars will
Supernova
• Brilliant explosion
• Core produces heavier
and heavier element
until it creates
__________(Fe).
• Results in a pulsar or
black hole depending
on mass of star.
Crab Nebula – went
supernova in 1054
End Stage of a massive star
(Neutron Star/Pulsar)
• A star at least 2X more
massive than our sun
collapsed into a space
the size of a small city.
• So dense a teaspoon
of a neutron star would
weight more than a
cruise ship full of
people.
http://library.thinkquest.org/25763/lsupernova.htm
X-ray
Crab Nebula containing a Neutron Star
Went Supernova in 1054
End Stage Super Massive Star
(Black Hole)
• Only occurs with very
massive stars (3+
times the mass of our
sun)
Our Sun’s fate
• After _______________,
stages _________!!!!!
• Our sun is not massive
enough to become a black
hole or a neutron star.
After it becomes a red
giant it will Nova and form
a…
Planetary Nebula
White Dwarf
White Dwarf
White Dwarf
• The White Dwarf will
burn very hot (Up to
20,000 degrees
Kelvin).
• Eventually it will burn
out and become a
Black Dwarf.
HR - Diagram
Our Galaxy (The Milky Way)
• Spiral Galaxy
Our sun
• Our Sun is located in the
galactic arm of Sagittarius.
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