P1.1 - The Solar System
- Created by: Lucinda.Khalil
- Created on: 15-11-15 09:13
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- P1.1 - The Solar System
- Changing Ideas
- Geocentric
- 130 CE
- Greek Astronomer Ptolemy
- Earth-centred with other planets orbiting
- Heliocentric
- 1543 AD
- Nicolaus Copernicus
- Argued that the planets were all in orbit around the sun
- Fitted data better - made more sense
- Challenged religious view of the universe
- Geocentric
- Observing the Universe using Waves
- Naked Eye - Visible Light
- Some stars and planets
- Telescopes
- Allow us to see more distant, fainter objects
- Large lenses and mirrors gather more light
- Large lenses and mirrors gather more light
- Hubble Space Telescope
- Allow us to see more distant, fainter objects
- Photographs
- Provide a record of observations
- Can be studied later or analysed by a computer
- Cameras can record light arriving through a telescope over many minutes
- Can produce pictures of objects to dim to see just by looking through a telescope
- Provide a record of observations
- Naked Eye - Visible Light
- Galileo
- First astronomer to make observations using telescopes
- 1610
- He observed four moons orbiting Jupiter
- First objects to be seen not orbiting earth
- Supported Copernicus
- Meant Geocentric version was flawed as not everything orbited earth
- First objects to be seen not orbiting earth
- Telescopes
- Space Telescopes
- Advantages
- Can view earth
- Not affected by weather
- Does not suffer from light pollution
- Can be used at any time
- Can detect rays absorbed by Earth's atmosphere (no problems with atmospheric differences
- x- rays
- gamma rays
- Disadvantages
- hard to repair
- Expensive
- Advantages
- Land Telescopes
- Advantages
- Cheaper to build
- Cheaper to maintain
- Easier to maintain
- Disadvantages
- Atmosphere affects the view
- Can't detect all rays
- x-rays
- gamma rays
- Only work at night
- Advantages
- Space Telescopes
- Changing Ideas
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