Transcript monkeyball_lifecycleofastar

LIFE CYCLE OF A STAR
BY MONKEYBALL
•Low mass stars
•High mass stars
nebula
 A star begins it’s life in a cloud of dust
and gas mainly hydrogen, its called a
nebula.
 Gravity then begins to pull all the gas
and dust toward the center of the
nebula.
 Once this happens a proto star begins
to form.
http://en.wikipedia.org/wiki/Fil
e:Omega_Nebula.jpg
Proto star
http://www.cwanswers.com/8921/protostar
 A proto star is a basically a
baby version of a star.
 This is the stage when it ignites
itself by fusing hydrogen
atoms.
 Eventually the star gets hotter
and begins to enter it’s main
sequence phase.
BROWN DWARF
http://astro.berkeley.edu/~basri/bdwarfs/index.html
 A brown dwarf is a star that
never got hot enough to start
fission.
 Its basically a failed star, usually
a brown dwarf is formed after
the proto star phase.
 If a star gains enough heat it
ignites itself.
(LOW MASS STARS) MAIN
SEQUENCE
http://astro.berkeley.edu/~basri/bdwa
rfs/index.html
 The proto star gains enough mass to
begin fusion, and starts its main
sequence.
red giant
http://en.wikipedia.org/wiki
/Red_giant
 This is what happens when
Star runs out of hydrogen
And starts fusing helium
atoms which gives it the
Bright red color.
When this happens in billions
Of years if there are still
Humans, all life will be fried.
PLANETARY NEBULA
 This is the stage when a red giant stops fusing helium
and pushes the outer layers of itself outward a shown
in the picture. When this happens all that is left is a
solid dense core. At this point all life on earth would
http://en.wikipedia.org/wik
i/
have been annihilated a long time ago during the Red
Giant phase.
white DWARF
 This is basically the stars old form, the star is slowly
dying out.
 A white dwarf is the left over dense core
Of the old star.
White dwarfs are still hot (don’t touch)
http://en.wikipedia.org/wiki/
Black dwarf
 A black dwarf is the cooled version of a White Dwarf
 There none in our universe because it takes trillions of
years for a white dwarf to cool down because our
universe is only 13 billion years old!
http://en.wikipedia.org/wiki/Black_dwarf
Life cycle of high mass
stars
NEBULA
 A star begins it’s life in a cloud of dust and gas mainly
hydrogen, its called a nebula.
 Gravity then begins to pull all the gas and dust toward
the center of the nebula.
 Once this happens a proto star begins to form.
Proto star
A proto star is a basically a baby version of a star.
This is the stage when it ignites itself by fusing
hydrogen atoms.
Eventually the star gets hotter and begins to enter
it’s main sequence phase.
http://www.cwanswers.com/892
1/protostar
High MASS STARS MAIN
SEQUENCE
http://en.wikipedia.org/wiki/File:1e9m_comparison.png
 This is the main sequence
phase of a high mass star.
 The heat generated from a
high star can is so hot that if
our sun was a high mass star
we would fry.
 High mass stars are also blue.
Red supergiant
http://commons.wikimedia.org/wiki/File:Betelgeuse_vie
wed_from_8au.jpg
 A red supergiant is the next
phase of a high mass star’s
lifecycle.
 This phase is huge, our
planet would be a grain of
sand compared to a red
supergiant.
supernova
This is the phase when a red supergiant stops
fusing hydrogen and starts fusing heavier
objects until it explodes .It’s explosion is the
biggest and brightest explosion ever seen.
Black hole
 This is the phase of the star where
gravity sucks the star inward, and
not even light can escape a black
hole.
 Some people think that a black
hole can lead to another dimension
or another universe, sounds cool
right ? Well no its not cool because
if you ever get caught in one you
would be stretched out and you
probably would die.
or
Neutron star
http://en.wikipedia.org/wiki/File:123107main_image_feature_3
71_ys_4.jpg
 A neutron star is the result
of a supernova.
 It is very hot and dense.
 It’s the densest thing we
know.
The end
If you are still watching you have no life
UM your still here go away
 Stop skipping class losers