The Big Picture●* We live on planet Earth which is part of our

local Solar System.●

● * Our Solar System includes the Sun and everything that orbits the Sun.

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● * Our Sun, is just one Star in the ●Milky Way Galaxy.

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● * The Milky Way Galaxy is just one Galaxy in the Universe.

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Welcome to our Galaxy!

• We live in the Milky Way galaxy

It is a spiral galaxy

It has about 200 billion stars

(200,000,000,000)

It is 100,000 light years wide and up to 25,000 light years thick

Welcome to our Galaxy!

It is 100,000 light years wide and up to 25,000 light years thick

There might be 100,000,000,000 galaxies in our universe!

The Sun

The sun is the center of the solar system

All the planets in our solar system rotate and revolve around the sun

The Sun

The temperature on the surface of the sun is about 5,500 °C.

The center of the sun

is about 15,000,000 °C

The Inner Planets

They are smaller and made mainly of rock

The Outer Planets

They are bigger and made mainly of gas

The Planets

The Earth

Earth is one of eight planets in our solar system

Each planet has its own

satellites

The moon is a

satellite of Earth

The Asteroid Belt

● Asteroids are fragments of rock which move between the inner and outer planets

Constellations

● The Big Dipper Orion