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Observing space

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Observing space

  1. 1. Observing space Telescopes LO: Be able to state why we would want to observe objects in space. Be able to describe how we observe objects in space using the Hubble telescope. Be able to explain how the Hubble telescope works & be able to provide examples of objects that it has found. TASK: Why would we want to see objects in space? Write down your thoughts on a mini-whiteboard!
  2. 2. So what did you think? • How about this for a reason why we should observe space? • http://www.youtube.com/watch?v=VNtsVP 42bOE • Other ideas?
  3. 3. How have telescopes developed over the years? Pirates telescope – 2 Lenses
  4. 4. Richmond Park telescope
  5. 5. Richmond Park telescope
  6. 6. Home telescope containing mirrors
  7. 7. Optical Telescope, Hawaii
  8. 8. Jodrell Bank radio telescope, England
  9. 9. An array of radio telescopes
  10. 10. Arecibo Radio Telescope
  11. 11. What factors control how effective earthbound telescopes are? What might these refer to?
  12. 12. Where is the best place for a large telescope on earth? • Paired activity – using the fact file below, choose the best site to place a large optical telescope. Place Latitude Population density Altitude Mauna Kea, Hawaii, USA 19 degrees N 1650 per sq m 4205 m Oruro, Bolivia 17 degrees S 150 per sq m 3710m Greenwich, London, UK 52 degrees N 3750 per sq m 28 m Kharga, Egypt 25 degree N 6 per sq m 59 m
  13. 13. Where should the telescope be placed? In my opinion, the best site for the telescope is............. This site is better than the others because ......................... ....so how can we overcome and also ....................................................... these problems? Where should .............................................. It is not perfect through, aswe put the telescope? Is there Another really good site is ........................................ somewhere else? because ........................................................... The worst site would be .............................. because ...................................................................
  14. 14. The Hubble Space Telescope Good websites: 1. http://hubblesite.org/ 2.http://www.nasa.gov/mission_p ages/hubble/main/index.html 3. http://hubblesite.org/gallery/ Homework - Draw a labelled diagram to describe and explain how the Hubble telescope works & include an image that was taken by the telescope. http://www.youtube.com/wat ch?v=SpkrVw_E6Nw
  15. 15. Telescopes Optical telescopes have bigger lenses than your _________. The bigger the lens the more _________ the telescope takes in. Bigger lenses can see _________ . The best optical telescopes tend to reflect the light using _________ instead of glass lenses. Large dishes like in _________ are used to detect _________ from space. The _________ telescope is in orbit around the Earth. An advantage of a space telescope is that it is above the Earth’s _________ and the view doesn’t get blocked by clouds, water __________ or dust. A disadvantage of space telescopes is that it is difficult to _________ them. missing words; repair, atmosphere, radio waves, light, Hubble, eye, Jodrell Bank, further, gamma rays, vapour less far, mirrors, moon Telescopes Optical telescopes have bigger lenses than your _________. The bigger the lens the more _________ the telescope takes in. Bigger lenses can see _________ . The best optical telescopes tend to reflect the light using _________ instead of glass lenses. Large dishes like in _________ are used to detect _________ from space. The _________ telescope is in orbit around the Earth. An advantage of a space telescope is that it is above the Earth’s _________ and the view doesn’t get blocked by clouds, water ________ or dust. A disadvantage of space telescopes is that it is difficult to _________ them. missing words; repair, atmosphere, radio waves, light, Hubble, eye, Jodrell Bank, further, gamma rays, vapour less far, mirrors, moon
  16. 16. Telescopes Optical telescopes have bigger lenses than an eye does. The bigger the lens the more light the telescope takes in. Bigger lenses can see further. The best optical telescopes tend to reflect the light using mirrors instead of glass lenses. Large dishes like in Jodrell Bank are used to detect radio waves from space. The Hubble telescope is in orbit around the Earth. An advantage of a space telescope is that it is above the Earth’s atmosphere and the view doesn’t get blocked by clouds. A disadvantage of space telescopes is that it is difficult to repair them.

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