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A&A Supplement series, Vol. 122, May I 1997, 559-569

Received July 2; accepted August 9, 1996

Secondary standard stars for tex2html_wrap_inline1158 CCD photometrygiftex2html_wrap_inline1160

J.V. Clausen tex2html_wrap1186 - S.S. Larsen tex2html_wrap1188 - J.M. Garcia tex2html_wrap1190 - A. Giménez tex2html_wrap1192 - J. Storm tex2html_wrap1194

Send offprint request: J.V. Clausen, e-mail:

tex2html_wrap1196  Niels Bohr Institute for Astronomy, Physics, and Geophysics; Astronomical Observatory, Juliane Maries Vej 30, DK-2100 Copenhagen Ø, Denmark
tex2html_wrap1198  Departamento de Física, E.U.I.T. Industriales, UPM, Ronda de Valencia 3, E-28012 Madrid, Spain
tex2html_wrap1200  Laboratorio de Astrofísica Espacial y Física Fundamental, INTA, Apdo. 50727, E-28080 Madrid, Spain
tex2html_wrap1202  European Southern Observatory, Alonso de Cordova 3107, Casilla 19001, Santiago, Chile


Accurate standard uvby indices are presented for 73 southern B, A, F and G stars in the V magnitude range 8.2 to 10.9. They cover all three transformation regions of the uvby system (Olsen 1983) well. Standard tex2html_wrap_inline1170 indices are included for the 55 B, A, and F stars in the sample. Our results provide a useful set of secondary standards for tex2html_wrap_inline1172 CCD photometry with southern hemisphere 1-2 m class telescopes. A critical comparison with published photometry, in general based on fewer observations, is given.

keywords: Strömgren photometry -- astronomical data bases: miscellaneous -- stars: fundamental parameters -- stars: general

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