CAOSP abstracts, Volume: 31, No.: 2, year: 2001

Abstract: The behaviour of atmospheric extinction at the Skalnate Pleso Observatory can be satisfactorily described by a standard two-component model consisting of a more or less constant component given namely by Rayleigh scattering and a variable one caused by the scattering of light on dust particles. In order to explain the properties of Brno extinction we introduce an additional, variable "particular component" acting mainly in the U and B colours. Long-term and seasonal variations of both variable components of extinction in the B colour have been thoroughly investigated. The proposed extinction models are confronted with observations in all colours of the UBV system. Trends of the UBVRI extinctions are discussed.

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