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| all the spectral reegions: radio, infared, ultraviolet, x ray, gamma ray |
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| in a blackbody, an object must remit all the radiation it absorbs; the balckbody curve describes the distribution of the remitted radiation |
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| the study of the ways in which matter emits and absorbs radiation is called: _____. |
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| narrow "slices" of the continuous spectrum |
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| lines that represent wavelengths of light that have been removed/absorbed by gases present either in the outer lays of the sun or in earth's atmosphere |
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| the motion-induced change in the obseved frequency of a wave |
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| uses a curved mirror to gather and concentrate a beam of light. The mirror is constructed so that all light rays arrriving parallel to its axis pass through the focus |
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| usues a lens instead of a mirror; bens a beam of light as it passes from one stransparent medium to another |
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| light is intercepted by a flat secondary mirror |
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| newtonian reflecting telescope |
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| light is intercepted by a convex secondary mirror; example--hubble space telescope |
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| used to collect and store data in digital form later analysis |
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| charge coupled device (CCD) |
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| the ability of any device, such as a camera or a telescope to form distinct, separate images of objects lying close together in the field of view |
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| the resolution of most ground based optical teslecopes is limited by "seeing" which is the blurring effect of EArth's turbulent atmospheres which spears teh pointlike images of a star into a seeing disk, a few arc seconds in diameter (read/review this) |
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| the collect of techniques aimed at controlling environmental and mechanical fluctations in the properties of the telescope itself |
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| deformthe shape of a mirrors surface under computer control while the image is being exposed, in order to undo the effects of atmospheric turbulence |
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| groundbased telescopes capable of detecting radio waves |
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| read more on radio telescopes |
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| a technique making it possible to produce radio images of much higher angular resolution that can be achieved with even the best optical telescopes on earth |
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| interfermoetry (two radio telescopes used) |
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| the four innermost planets; mercury venus, earth, mars |
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| fragments of rocky material; somewhat similar in composition to the outer layers of the terrestrial planets |
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| difference between asteroids and meteoroids? |
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| size; anything larger than 100 m in diameter is called an asteroid; anything smaller is a meteoroid |
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| The ____is an outer asteroid belt consisting of icy bodies, including Pluto. |
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| ____are predominatly icy rahter than rocky in composition, but they do contain some rock. |
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| a sudden streak of light in the night sky caused by friction between air molecules in earth's atmosphere |
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| any piece of interplanetary debris that touches the ground |
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| where is the asteroid belt |
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| midway between mars and jupiter |
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| huge cloud of comets lying far beyond the orbit of pluto |
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| read about nebular contraction p. 120 |
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| how to detect extrasolar planets |
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