... the Moon and planets, generally show more detail by direct visual observation than is possible to obtain photographically with the same instrument because the Earth'satmosphere tends to "fuzzy" the image slightly during the time of the photo exposure ...
... caused either by the effects of highly contrasting light impacting the human eye or by the motion of the Earth'satmosphere, through which the observation is being made. (b) Contrast is the separation of adjacent surface regions according to their color ...
... poor due to the fact that the images are being viewed through the thickest and most turbulent part of the atmosphere, unlike astronomical observations made by pointing the telescope up and through a thinner atmosphere. [ toc ] E. Using Setting Circles ...
... poor due to the fact that the images are being viewed through the thickest and most turbulent part of the atmosphere, unlike astronomical observations made by pointing the telescope up and through a thinner atmosphere. [ toc ] E. Using Setting Circles ...
... sky they will appear to drift out of the field of view due to the Earth's rotation ... The atmosphere is not sufficiently steady to support high powers. ... cannot see any surface detail on Venus because it has a very thick atmosphere of gas ...
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Ссылки http://www.meade.com/downloads/manuals/lightbridge/lightbridge.pdf -- 1196.7 Кб -- 09.04.2012 Похожие документы