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There are 3 

galaxy`s: 

Spiral, 

Elliptical, and 

Irregular.

The Spiral galaxy has arms and curls 

down to the center. It can have planets. 

It can have more than 200 billion 

stars.There are million of these galaxys 

in the universe.  

Elliptical galaxy's are football shaped, 

they can be small or huge. These 

galaxy's don't have much dust or gases. 

And they are usually very old.

Irregular galaxy's are younger and have 

no particular shape. They have many 

gases and cosmetic dust. They have no 

arms and can be small or huge.

Protostar        Fusion Ignition- Main Sequence       Red Giant/Supergiant          White Dwarf/Blackhole

is when           this is when the star is getting       is the middle age of the        this is when the star has  

the star is      bigger in size and getting hotter.    it has lived billions of years    died and has turned into 

starting          This is like going from a kid to an   it is starting to expand. And   a black hole that can 

to form.          adult only in takes billions of        it is now one of the biggest    destroy anything or a  

It is the          Years.                                               stars.                          White Dwarf which is the

birth of a                                                                                               birth of a new star.

new star.

Constellations are a group of stars forming a 

pattern that is named after its apparent form it 

can be identified as a mythological figure.

Constellations are used to provide a structure 

to the sky.

http://aspire.cosmic-

ray.org/labs/star_life/starlife_main.html

http://www.astro.cornell.edu/academics/course

s/astro201/galaxies/types.htm

http://www.astro.wisc.edu/~dolan/constellation

s/

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