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Jessica Perez - stars* prezi (:

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by

Jessica Perez

on 18 May 2011

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Transcript of Jessica Perez - stars* prezi (:

Stars Each dot on the diagram tells its luminosity and temperature. Types of stars :
Protostar
T Tauri Star
Main Sequence Star
Red Giant Star
White Dwarf Star
Red Dwarf Star
Neutron Stars
Supergiant Stars A star is a really hot ball of gas, with hydrogen fusing into helium at its core, held together by its own gravity. Starts in cloud of gas & dust. Particles of gas and dust begin to move closer together, the regions become denser and temperature increses. Parts of the Nebula will
tart to glow if its big enough
and these
areas are called Protostars When the center of a Protostar becomes really hot a fusion begins and a star is born Most of the
Stars are here:
Near our sun... FACTS: on a really dark night you
can see about 1000 to 1500
stars, Stars are born , they live and they die. People thought shapes could
be form with stars , from people to animals ,
now known as constellations. Stars give us
light and energy that fuels a solar system. HR Diagram Each dot tells the
stars luminosity and
temperature Most stars are
closest to the sun
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