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- W1504401633 abstract "ABCTRACT. We discuss the in°uence of atmo-spheric extinction to visibility of galaxies in the visualregion of the spectrum. For this purpose the platescovering the same, small region of the sky takenwith 2-m telescope, at difierent zenith distances wereobtained. We investigated the relation between galaxycounts and the zenith distance. We show that thein°uence of the atmospheric mass to the visibility ofgalaxies is the same as for stars.Key words: atmospheric absorption; teaching ofastronomy.1. IntroductionThe quality of astronomical observations stronglydepends on conditions of the Earth atmosphere. Thereare several factors in°uencing the accuracy of obser-vations. The atmospheric refraction lowers the accu-racy of astrometry; atmospheric absorption causes sig-niflcant errors in photometric and spectrophotomet-ric measurements, difierent for point-like images, i.e.stars, and extended objects such as nebulae and galax-ies.For stars at zenith distances" @default.
- W1504401633 created "2016-06-24" @default.
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- W1504401633 date "2007-08-01" @default.
- W1504401633 modified "2023-09-23" @default.
- W1504401633 title "Influence of Atmospheric Absorption on Visibility of Galaxies" @default.
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- W1504401633 hasPublicationYear "2007" @default.
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