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|adaptive optics ||extinction ||reddening
|seeing ||speckle interferometry
- The distance to the nearest star is 4.3 light years = 4.3
trillion kilometers = 41,800,000,000,000 kilometers. Does Mauna Kea's elevation of
(=2.6 miles) put it significantly closer to even the nearest star than
at sea level? Explain your answer. (1 kilometer = 1000 meters.)
- What causes stars to twinkle? What would make good seeing?
- Even with perfectly clear skies free of human-made pollution, the
Mauna Kea (4177 meters elevation) is much better than at sea level. Why is
- What absorbs infrared light in our atmosphere and up to what height
sea level is most of this infrared absorber found?
- Even with perfectly clear skies free of human-made pollution, infrared
observations can be made at Mauna Kea but not at Kitt Peak (2070 meters
Why is that?
- Why are all ultraviolet, X-ray, and gamma ray telescopes put up in
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last updated: 20 May 2001
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