UBV(RI)C photometry of equatorial standard stars. A direct comparison between the northern and southern systems
J. W. MenziesSouth African Astronomical Observatory, PO Box 9, Observatory 7935, South AfricaF. MarangSouth African Astronomical Observatory, PO Box 9, Observatory 7935, South AfricaJ. D. LaingSouth African Astronomical Observatory, PO Box 9, Observatory 7935, South AfricaI. M. CoulsonSouth African Astronomical Observatory, PO Box 9, Observatory 7935, South AfricaC. A. EngelbrechtSouth African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa
1991en
ABI
Аннотация
We present UBV( RI )C photometry of 212 stars from Landolts list of equatorial standards is presented. The observations are tied to the system defined by Cousin’s E-region standards. A comparison of the present results with Landolt’s reveals reasonably good agreement for ( V–R )C and ( V – I)C, but marked systematic differences for ( B – V ) and ( U – B). and The UBV systems of Cousins and Landolt are evidently not the same and both probably differ from Johnson’s original system.
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