Telescopes pptx

Post on 29-Jun-2015

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Transcript of Telescopes pptx

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