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Astronomy

by:CelineAstronomy is the scientific study andobservation of the universe beyond

earth including stars,planets,cometsand galaxies.

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Galaxies

The nearest large galaxy,Andromeda,is also aspiral.Our galaxy is a spiral.

Barred spiralElliptical

Spiral

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Inner planets

Mars:was

named

after a

roman

god.

Earth:

mayhave

been

named

oceans

or water

because

its the

only

planet

with

water .

Venus:nam

ed afterand the

roman god

of love and

beauty.

Mercury:a roman

god;the

swift and

speedy

messeng

er of thegods.

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Outer Planets Gas Giants

Jupiter:na

med for

the roman

king of the

god.

Saturn:

namedfor the

roman

god of

farming

.

Uranus:

named forthe father

of all

Greek

gods.

Neptune:

named forthe roman

god of the

sea.

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Pluto

I think Pluto is a planet because it might be

the smallest planet ,but it is kind of

special. It switches with Neptune. Foryears science tests debated on Pluto.

Finally they said Pluto is not a planet. In

my opinion I think Pluto is a planet.

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Day and Night

Day and Night is caused by the Earths rotation.

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The Earth does not stand strait upand down on its axis as it spins. It

tilt slightly, and this causes the

different seasons.

The seasons

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Gravity

Gravity-invisible force

that pulls us to the

Earth.

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New Moon Crescent

Moon

First-

quarter

Moon

The Phases of the moon

New gibbous

Moon

Full MoonOld

GibbousMoon

Last

quarter

moon

Cresce

ntmoon

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Lunar Eclipse

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Solar Eclipse

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Stars and Constellations

There are 88 constellations.

A star is a ball of very hot gas which gives

off light.

A constellation is a group of stars that

appear to form a picture or pattern.

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Pegasus

QuickTime and aTIFF (Uncompressed) decompressor

are needed to see this picture.