J/A+A/372/588 uvby light curves of V2154 Cyg (Rodriguez+ 2001)
uvby light curves of the eclipsing binary system V2154 Cyg
Rodriguez E., Garcia J.M., Martin S., Claret A.
<Astron. Astrophys. 372, 588 (2001)>
=2001A&A...372..588R 2001A&A...372..588R
ADC_Keywords: Stars, variable ; Binaries, eclipsing ; Photometry, uvby
Keywords: stars: binaries: eclipsing - stars: individual: V2154 Cyg -
stars: fundamental parameters - techniques: photometric
Description:
Table 1 contents 852 simultaneous measurements collected in each of
the four uvby colours of the Stromgren photometric system for the
eclipsing binary system V2154 Cyg. The data are magnitude differences
(Du,Dv,Db,Dy,D(b-y),Dm1,Dc1) of the variable star minus comparison
star in the standard system versus Heliocentric Julian Day. The
comparison star is HD 204626. The observations were carried out (by E.
Rodriguez, J.M. Garcia, S. Martin and A. Claret) through the year 1998
using the 0.90m telescope at Sierra Nevada Observatory, Spain. This
telescope is equipped with a six-channel uvby-Hbeta spectrograph
photometer for simultaneous measurements in uvby or in the narrow and
wide Hbeta channels, respectively.
Objects:
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RA (2000) DE Designation(s)
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21 23 08.3 +48 31 08 V2154 Cyg = HD 203839
21 28 24.4 +48 26 04 HD 204626
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 68 852 Light Curve
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian Date
14- 20 F7.4 mag umag Differential Stroemgren u magnitude
22- 28 F7.4 mag vmag Differential Stroemgren v magnitude
30- 36 F7.4 mag bmag Differential Stroemgren b magnitude
38- 44 F7.4 mag ymag Differential Stroemgren y magnitude
46- 52 F7.4 mag b-y Differential Stroemgren b-y index
54- 60 F7.4 mag m1 Differential Stroemgren m1 index
62- 68 F7.4 mag c1 Differential Stroemgren c1 index
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Acknowledgements: Eloy Rodriguez
(End) Patricia Bauer [CDS] 18-Apr-2001