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Everything Astronomy

Dominic R

on 29 April 2010

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Transcript of Astronomy

Astronomy Slows Earth's rotation
Causes tides with gravitational pull What the moon does: Seasons: When Earth's axis is turned toward the Sun, it is summer or spring.
When the axis is turned away, it is winter or fall. Picture 1:
When Earth's axis is
turned toward the sun,
it is spring or summer. Picture 2:
When the axis is turned
away, its fall or winter. The Moon The Seasons Eclipses Lunar Eclipse Solar Eclipse The Star's Life Cycle Black Dwarf Astronomy: The scientific study of all objects in space. Universe: Everything and anything Star: Large ball or burning gasses that are millions of miles away. Our sun is a star. Galaxies Earth is located in the Milky Way Galaxy. Galaxy: An enourmous collection of stars, gas, and dust held together by gravity. Spiral Galaxy: Has a bulge at the center and arms. Barred Spiral: Spiral galaxies with a bar running across. Elliptical: Have a smooth and ball shaped appearence and contain many old stars. Irregular: These are neither elliptical or spiral;
they do not have a definate shape. The Sun Core: Where the sun's energy is produced. Radiative Zone: Energy moves by radiation through here. Convecrion Zone: Currents of hot gas carry energy outward. Photosphere: The visible layer of the sun. Chromosphere: The middle layer of the sun's atmosphere. Protostar Protostar
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