A model of the universe used until the 1500's with the earth at the centre and everything orbiting it.
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Heliocentric model
A model which is used in modern days with the sun at the centre and everything orbiting it (planets can have moons orbiting them too).
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Visible light
The only part of the electromagnetic spetrum what we can see.
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Nake eye observations
Observations made by just the eye and nothing else. These observations can be useful in mapping the positions of objects in the sky
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Telescopes
An object which is used to observe objects in space in more detail and at larger distances.
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Space telescope
A telescope which isn't interferred by the same problems as telescopes on earth may have. Space telescopes overcome the problems but are very expensive
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Photographs
Photographs can be taken by telescopes and is used to 'zoom in' to view objects more clearly and you can share your observations with others.
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Other cards in this set
Card 2
Front
A model which is used in modern days with the sun at the centre and everything orbiting it (planets can have moons orbiting them too).
Back
Heliocentric model
Card 3
Front
The only part of the electromagnetic spetrum what we can see.
Back
Card 4
Front
Observations made by just the eye and nothing else. These observations can be useful in mapping the positions of objects in the sky
Back
Card 5
Front
An object which is used to observe objects in space in more detail and at larger distances.
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