A galaxy contains A galaxy contains stars gas and dust stars gas and dust which are held which are held together as a together as a group by gravity.group by gravity.
There are billions There are billions of stars in one of stars in one galaxy. galaxy.
GALAXIESGALAXIES
• Our galaxy is called Our galaxy is called the Milky Way galaxy.the Milky Way galaxy.
• There are over 100 There are over 100 billions stars in the billions stars in the Milky Way galaxy.Milky Way galaxy.
THE MILKY WAYTHE MILKY WAY
Some galaxies are Some galaxies are called eliptical.called eliptical.
A galaxy may be A galaxy may be called “irregular” if called “irregular” if it doesn`t really it doesn`t really have a shape.have a shape.
IRREGULAR GALAXIESIRREGULAR GALAXIES
SOLAR SYSTEM I
Our solar system consits of the sun, eight planets and a dwarf
planet (and their moons, an asteroid belt , and many comets
an meteors.
SOLAR SYSTEM II
• The sun is the center of our solar system. The planets, their moons and other rocks and gas all orbit the sun.
SOLAR SYSTEM III
• The planets that orbit the sun are ( in order from the sun ) : Mercury, Venus, Earth, Mars and Jupiter (the biggest planet in our Solar System), Saturn, Uranus, Neptune and Pluto.
• Galaxies are labelled according to their shape.
• Our sun is a star in one of the galaxy’s arms.
THE SUN
• The planets that orbit the sun.
• There are eight planets:Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
• They can be inners or outers.
THE PLANETS
OUTER PLANETS
• There are 4 outer planets:Jupiter, Saturn, Uranus, Neptune.
• The outer planets (those planets that orbit far from the sun).
INNER PLANETS
• There are 4 planets:Mercury, Venus, Earth and Mars.
The inner planets (those planets that orbit close to the sun) are a quite different from the sun.
The distance across The distance across galaxies is usually very galaxies is usually very big, it con be many big, it con be many light-years.light-years.
A light-year is the A light-year is the distance light travels in distance light travels in one year.one year.
LIGHT YEARSLIGHT YEARS
SIGNS OF THE ZODIAC
• The Egyptian Greek zodiak is still used in many parts of the world today. It has its roots in the actient cultures of the Mediterranean area, Ancient Egypt, Greece and Rome.
The signs of the zodiac
• The sings have the Latin names given by the Romans. They are based on characters from Ancient Greek myths.
The signs of the zodiac
Scorpio: This poisonous creature was sent by the gods to kill the Greek hero Orion, the mighty hunter, after he had boasted that he could kill any living thing.
Made by: Eneko I. & Alba
A constellation is a grouping of stars which have been given names by ancient astronomers because of the way they look.
DRACO
• This constellation is best seen during the summer months.
URSA MAJOR
• Ursa Major, The Great Bear, is one of the best known constellations, especially its seven stars that make up the Big Dipper or the plough.
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• .This is our farewell presentation.
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