telescopes pptx
Post on 29-Jun-2015
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Getting closer to the stars
Telescopes
• Telescopes are used to see objects that are too far to be seen with the naked eye.
• They also provide a closer view of distant things.
• Astronomers use large telescopes to study the planets, stars and other objects in space.
DID YOU KNOW????
Without telescopes, we would not know much about celestial bodies!
LENSES OR MIRRORS?
Telescopes with lenses are called refracting telescopes. Lenses bend light.
The largest telescopes use mirrors instead of lenses. Telescopes with mirrors are called reflecting telescopes. Mirrors reflect light.
PICTURE OF A TELESCOPE
EYEPIECELens to view the image
FOCUS ADJUSTMENTMove this to make the image clearer
Big telescopes
Small telescopes
Galaxy
The milky way galaxy
The sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
PLUTO
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