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Astron. Astrophys. Suppl. Ser. 146, 169-177

Secondary ${\boldmath UBVRI}$-CCD standard stars
in the neighbourhood of Landolt standard stars[*] [*]

D. Galadí-Enríquez1,2 - E. Trullols3,2 - C. Jordi2,4

Send offprint request: D. Galadí-Enríquez

Correspondence to: dgaladi@am.ub.es


1 - Centro de Astrobiología (CSIC-INTA), INTA Edif. S-18, Carretera de Ajalvir km 4, E-28850 Torrejón de Ardoz, Spain
2 - Dept. d'Astronomia i Meteorologia, Univ. de Barcelona, Avda. Diagonal 647, E-08028 Barcelona, Spain
3 - Dept. de Matemàtica Aplicada i Telemàtica, Univ. Politècnica de Catalunya, Avda. Victor Balaguer s/n,
E-08800 Vilanova i la Geltrú, Spain
4 - Institut d'Estudis Espacials de Catalunya - IEEC, Edif. Nexus, Gran Capità 2-4, E-08034 Barcelona, Spain

Received April 13; accepted July 11, 2000

Abstract:

A list of 681 UBVRI secondary standard stars for CCD photometry is presented. Visual magnitude ranges from 9.7 to 19.4, and the B-V colour index varies from 1.15 to 1.97. The stars are grouped into 11 different fields, each of them is generally observable in a single CCD frame. The stars are located near Landolt UBVRI equatorial standards, accessible to telescopes in both hemispheres, and mainly within the 5 - 8 hours range of right ascension. Photometry, equatorial coordinates and finding charts are provided.

Key words: methods: observational -- techniques: photometric -- stars: general



 
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