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J/PAZh/37/377       UBV light curves of LT Del               (Arkhipova+, 2011)

Symbiotic halo star LT Del: Phase variations of the emission spectrum and parameters of the cool component. Arkhipova V.P., Esipov V.F., Ikonnikova N.P., Komissarova G.V., Noskova R.I. <Pis'ma Astron. Zh. 37, 377 (2011)> =2011PAZh...37..377A =2011AstL...37..343A
ADC_Keywords: Stars, variable ; Photometry, UBV Keywords: symbiotic stars - photometry - spectra Abstract: Long-term photometric and spectroscopic observations of the yellow symbiotic star LT Del are analyzed. UBV light curves are presented. Based on the observations of 20 cycles, we have refined the orbital period of the star, P=476.0d±1.0d. The brightness has been found to be unstable at some orbital phases with an amplitude up to 0.3m. Description: We have performed systematic photoelectric observations of LT Del since 1982. Our UBV observations before 1994 were published previously (Arkhipova and Noskova 1985PAZh...11..706A, 1988PAZh...14..445A; Arkhipova et al. 1995PAZh...21..379A). The observations were continued at same telescope, in the same photometric system, and with the same comparison stars. Our 1995-2009 observations are presented in Table 1. Objects: --------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------- 20 35 57.2 +20 11 27 LT Del = Hen 2-467 --------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 28 200 UBV observations of LT Del in 1995-2009
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 7 I7 d JD Julian date 9- 13 F5.2 mag Vmag V magnitude 14 A1 --- u_Vmag Uncertainty flag on Vmag 16- 19 F4.2 mag B-V B-V colour index 20 A1 --- u_B-V Uncertainty flag on B-V 22- 26 F5.2 mag U-B U-B colour index 27 A1 --- u_U-B Uncertainty flag on U-B 28 A1 --- n_JD [*] * for Unpublished data for 1994-the end of the major outburst
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 17-May-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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