The Sun, Stars and Solar System

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The Sun, Stars and Solar System

• Objects Beyond the Earths Atmosphere

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What is the sun?What state is it in?
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Sun Safety

• When studying the sun safety is very important!
• Write one sun safety rule

Never look at the Sun directly!
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The Sun From the Earth
The Earth revolves, or makes one revolution
around the Sun in ONE YEAR.
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The Sun as seen through a _________ with a
special filter. The special filter helps
prevent eye damage.
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The Sun and Solar Flare
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Sun Facts
Makes life on our planet possible by giving us
great amounts of light and heat.Contains about
98 of the mass of the entire Solar System.Is
just a medium sized star (yellow dwarf). It is
about 1.4 million kilometers in diameter.
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Sun Facts
It is the center of our Solar System. All the
planets and other objects orbit around it.It is
very gaseous, and made up mostly of
hydrogen.Contains dark spots that are known as
sunspots. (These are due to temperature
differences. Sunspots are cooler areas of the
sun.)
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How is the sun different than other stars?
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Stars
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Star Facts

• Stars are formed initially from gas and dust.
  They are made mainly of hydrogen gas.
• Stars are very hot and give off huge amounts of
  energy in the form of heat and light.
• Our Sun is a medium sized star.

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More Star Facts

• Stars are very far away from Earth. The closest
  Star is about 23.5 trillion miles away.
• A group of stars that form a star picture is
  called a ___________.
• The night sky has about ____ constellations.

constellation
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Do you know this constellation?
If you guess the Scorpion or Scorpius, youre
right!
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Swan Constellation
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The ConstellationOrion
Watch the next diagram very carefully.
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OrionAgain!
What does this outline possibly represent? Any
ideas?
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Orion
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How is the solar system different than the sun?
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How do we remember the order of our planets?
My Very Energetic Mother Just Served Us Nachos!
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Another Look at the Solar System
Pluto Eris
Dwarf Planets
There are Four LARGE outer planets
There are four small inner planets
Limitations of this Model?
The DISTANCE between objects and the SIZE of the
Sun and planets.
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Solar System
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The Solar System

• Contains the eight planets and other smaller
  objects such as minor planets, comets, meteoroids
  and cosmic dust. The first four inner planets
  (Mercury, Venus, Earth, and Mars) are relatively
  small and resemble the Earth in composition
  (rocky). The next four planets (Jupiter,
  Saturn, Uranus, and Neptune) are much larger
  planets and are very gaseous in nature. Pluto is
  now called a minor or dwarf planet that is far
  from the sun.

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The Solar System Continued

• All the objects in our Solar System orbit the
  Sun. It is so big that everything in our Solar
  System could fit in it many times. Many
  scientists believe that our Solar System is over
  4.6 billion years old.

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Science Vocabulary

• Orbit
• Revolution
• Rotation
• Solar system
• Constellation

• Sun
• Sun Spots
• Energy
• Solar energy
• Planets
• Inner Planets
• Outer Planets

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Sailing Out to Space

• I dream of sailing out to space,Upon a yacht of
  stars.With port holes all along the sides,I'd
  gaze amazed at Mars.
• With stars in front and stars behind,And planets
  far and near,I'd sail my yacht around the
  rings,Of Saturn with a cheer.