| Issue |
A&A
Volume 376, Number 2, September II 2001
|
|
|---|---|---|
| Page(s) | 745 - 750 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361:20011001 | |
| Published online | 15 September 2001 | |
CCD standards for U and I in the open cluster NGC 7790 *,**,***
1
Institute of Astronomy, Bulgarian Academy of Sciences, Sofia, Bulgaria e-mail: petrov@astro.bas.bg; kovachev@astro.bas.bg
2
Universitätssternwarte Bonn, Auf dem Hügel 71, 53121 Bonn, Germany e-mail: seggewis@astro.uni-bonn.de; adieball@astro.uni-bonn.de
Corresponding author: W. Seggewiss, seggewis@astro.uni-bonn.de
Received:
17
November
2000
Accepted:
12
June
2001
Photometric U and I standard sequences in the field of the open cluster NGC 7790 are presented. The intention is to achieve wide ranges in magnitude and colour, making these sequences suitable for calibrating deep CCD photometry. The 84 standard stars extend the BVR sequences of Odewahn et al. ([CITE]) to the near UV and IR, respectively.
Key words: techniques: photometric / astronomical data bases: miscellaneous / galaxy: open clusters and associations: individual: NGC 7790
© ESO, 2001
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