Telescope

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Telescope

  1. 1. 2013-07-30 21:15 HKT
  2. 2. Saturn • There is a ring surrounding Saturn • A yellowish planet with a ring • A pale brown ring surrounding the sphere is observed • There are different yellowish-brown layer moving on the surface • A ring of satellites
  3. 3. Venus (-3.3 mag) • Very bright, seems like emitting light beams, rotate quickly • 震, shinning • Slightly green, extremely wobbly
  4. 4. Binoculars 雙筒望遠鏡 7 X 50 Magnification 放大倍數 Aperture 口徑(mm)
  5. 5. 折射式望遠鏡 反射式望遠鏡 Credit: Sky Watch
  6. 6. Focal length 焦距
  7. 7. Telescope Structure Optical Tube Finderscope Mount Eyepiece Tripod
  8. 8. Credit: Josch Hambsch
  9. 9. 地平式 赤道式
  10. 10. 地平經度 地平緯度 天頂
  11. 11. 地平裝置 Altazimuth Mount
  12. 12. 赤道裝置 Equatorial Mount
  13. 13. Credit: HKU Earth Circumpolar star (always visible) Celestial Sphere Never visible, always below the horizonRise in the east and set in the west The horizon
  14. 14. Magnification 放大倍率
  15. 15. Focal ratio 焦比
  16. 16. 視場 Field of View
  17. 17. 真實視場 True Field of View
  18. 18. 目視視場 Apparent Field of View
  19. 19. 分解力 Resolving power
  20. 20. Resolution
  21. 21. 視寧度 Seeing
  22. 22. 哈勃太空望遠鏡影像 Hubble Space Telescope Image 地基望遠鏡影像 Ground-based Telescope Image Credit: NASA, ESA, Hillary Mathis, NOAO, AURA, NSF, The Hubble Heritage Team (STScI/AURA) Aim for Higher Resolution 尋找更高分辨率

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