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\centerline{\ft PHOTOELECTRIC BV(RI)$_c$ OBSERVATIONS OF V1359 Aql
\footnote{Based on observations obtained at the Cerro Tololo
Inter-American Observatory}}
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\begintext

V1359 Aql is classified in GCVS as a suspected s--Cepheid variable
with amplitude near 0.2 mag.
However, Poretti and Mantegazza (1991) noted that, according to their
observations, the star's brighness did not vary more than by 0.02 mag.

To verify this conclusion, we were observing V1359 Aql during two runs
in 1994 (Berdnikov and Turner, 1995; Berdnikov and Voziakova, 1995)
and in March--April 1995. In the latter case the CTIO 60--cm reflector was
used and 7 $BV(RI)_c$ measurements were obtained (Table 1); the accuracy
of the individual data is near 0.01 mag in all filters.

The data in each individual run confirm the conclusion of Poretti and
Mantegazza (1991), but there are very small variations of the mean
brighness. If these variations are real, V1359 Aql may be classified as
a semiregular variable.

The research described in this publication was made possible in part
by grants No. NDD000 and No. NDD300 from the International Science
Foundation and Russian Government as well as  by
grant No. 95--02--05276 from the Russian Foundation of Basic Research
to LNB and by funds awarded through the Natural
Sciences and Engineering Research Council of Canada (NSERC) to DGT.

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Table 1

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\begin{tabular}{ccccc}
\hline
JD hel & $V$ & $B-V$ & $(V-R)_c$ & $(R-I)_c$\\
2400000+ & & & & \\
\hline
\\
49809.9089&  9.019&  1.355&  0.752&  0.736\\
49810.9020&  8.990&  1.360&  0.742&  0.633\\
49811.9049&  9.012&  1.340&  0.747&  0.741\\
49813.8923&  8.994&  1.343&  0.751&  0.706\\
49814.8917&  9.003&  1.317&  0.759&  0.724\\
49817.9017&  8.998&  1.336&  0.766&  0.721\\
49818.8921&  9.002&  1.335&  0.754&  0.707\\
\hline
\end{tabular}
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\beginauthors
\authorsrightcol
 L.N. BERDNIKOV
 Sternberg Astronomical Institute
 13, Universitetskij prosp.
 Moscow 119899, Russia
\vskip 2mm
 D.G. TURNER
 St. Mary's University
 923 Robie st.
 Halifax, NS B3H 3C3, Canada
\endauthors

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\references

Berdnikov, L.N., Voziakova, O.V., 1995, {\it Pis'ma v Astron. Zh.}, {\bf21}, 348

Berdnikov, L.N., Turner, D.G., 1995, {\it Pis'ma v Astron. Zh.}, {\bf21}, in press \BIBCODE{1995AstL...21..534B}

Poretti, E., Mantegazza, L., 1991, {\it IBVS}, No.\,3687

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