... in visual and photographic detail in deep-space emission and reflection nebulae ... light pollution while passing critical nebular emissions with minimal reduction ...
... on the facing page, as well as by the table of the brightest nebular emission lines ... wavelengths of 588nm. and 469nm. strong emission lines in hot planetary nebulae ...
... Nebular Filters: A modern boon to the city-dwelling deep-space observer, the interference nebular filter effectively cancels out the effects of most urban light pollution, while leaving the light of deep-space nebular emissions virtually unattenuated ...
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Ссылки http://www.meade.com/downloads/manuals/lightbridge/lightbridge.pdf -- 1196.7 Кб -- 09.04.2012 Похожие документы