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\IBVShead{4145}{13 January 1995}

\centerline{\ft PHOTOELECTRIC UBVR OBSERVATIONS}
\centerline{\ft OF THE PECULIAR CEPHEID V473 Lyr}
\vskip 8mm

\begintext

We have observed V473 Lyr at  the Mt. Maidanak
observatory in September -- October 1994.
The 60-cm reflector was used and 63 UBVR$_c$ differential
measurements were obtained (Table 1); the accuracy
of the individual data is near 0.01 mag in all filters.
The magnitude of the comparison
star HD\,180316 in UBVR$_c$  determined by us is:
V=6.858, U$-$B=$-$0.479, B$-V=-$0.044, V$-$R$_c$=$-$0.037.
This star is classified as Cepheid with
irregularly variable amplitude in the GCVS. According to our data the amplitude of light
curve (Fig.1) is near 0.4 mag. in V.

The phases are calculated with the  elements:

    $$Max JD hel = 2428738.767 + 1.490813 \times E.$$

This study was partially supported by the Russian Foundation
for  Fundamental  Research  through  grants No.\,94-02-04344 and No.
94-02-04347.
\vskip 2mm
\begin{center}
Table 1
\vskip 1mm
\begin{tabular}{cccccccccc}
\hline
JD hel & Phase & \symbol{01}V & \symbol{01}(U$-$B) & \symbol{01}(B$-$V) & \symbol{01}(V$-$R$_c$) \\
2449600+ & & & & & \\
\hline
\\
 19.2499&     .105&    $-$.834&     -  &    .662&    .385\\
 20.2326&     .764&    $-$.750&    .766&    .696&    .392\\
 21.1950&     .409&    $-$.625&    .825&    .794&    .444\\
 21.2284&     .432&    $-$.622&    .869&    .771&    .422\\
 21.2957&     .477&    $-$.581&    .867&    .760&    .453\\
 22.1124&     .025&    $-$.919&    .788&    .630&    .387\\
 23.0957&     .684&    $-$.633&    .842&    .721&    .419\\
 23.1813&     .742&    $-$.708&    .789&    .709&    .394\\
 23.2006&     .755&    $-$.730&    .776&    .686&    .398\\
 23.2104&     .761&    $-$.735&    .782&    .678&    .392\\
 23.2494&     .787&    $-$.791&    .777&    .669&    .375\\
 23.2899&     .815&    $-$.832&    .787&    .661&    .386\\
 24.0972&     .356&    $-$.654&    .857&    .755&    .434\\
 24.1408&     .385&    $-$.615&    .833&    .753&    .445\\
 24.1635&     .401&    $-$.618&    .847&    .763&    .421\\
 24.1994&     .425&    $-$.605&    .848&    .763&    .432\\
 24.2186&     .438&    $-$.608&    .871&    .763&    .430\\
 24.2469&     .457&    $-$.585&    .858&    .757&    .431\\
 24.2745&     .475&    $-$.583&    .845&    .758&    .445\\
 24.2877&     .484&    $-$.590&    .852&    .764&    .427\\
\hline
\end{tabular}
\vfill \eject

\centerline{2}
Table 1 (cont.)
\vskip 1mm
\begin{tabular}{cccccccccc}
\hline
JD hel & Phase & \symbol{01}V & \symbol{01}(U$-$B) & \symbol{01}(B$-$V) & \symbol{01}(V$-$R$_c$) \\
2449600+ & & & & & \\
\hline
\\
 24.3259&     .510&    $-$.593&    .869&    .760&    .428\\
 25.0985&     .028&    $-$.909&    .790&    .617&    .363\\
 25.1573&     .067&    $-$.879&    .820&    .637&    .366\\
 25.1784&     .081&    $-$.856&    .799&    .661&    .378\\
 25.1968&     .094&    $-$.857&    .797&    .651&    .374\\
 25.2386&     .122&    $-$.815&    .834&    .656&    .397\\
 25.2608&     .137&    $-$.813&    .787&    .680&    .385\\
 25.2842&     .152&    $-$.780&    .814&    .675&    .393\\
 25.3057&     .167&    $-$.800&    .811&    .684&    .404\\
 25.3219&     .178&    $-$.783&    .812&    .701&    .393\\
 26.2075&     .772&    $-$.757&    .758&    .686&    .394\\
 26.2260&     .784&    $-$.771&     -  &    .641&    .389\\
 26.2394&     .793&    $-$.801&    .755&    .658&    .389\\
 26.2612&     .808&    $-$.808&    .761&    .661&    .381\\
 31.0968&     .051&    $-$.893&    .799&    .643&    .365\\
 31.1650&     .097&    $-$.839&    .807&    .656&    .373\\
 31.1809&     .108&    $-$.822&    .815&    .669&    .382\\
 31.2086&     .126&    $-$.822&    .821&    .671&    .384\\
 31.2515&     .155&    $-$.790&    .823&    .677&    .394\\
 31.2900&     .181&    $-$.775&    .821&    .692&    .399\\
 32.1085&     .730&    $-$.678&    .784&    .699&    .404\\
 32.1550&     .761&    $-$.731&    .793&    .689&    .396\\
 32.1803&     .778&    $-$.766&    .763&    .665&    .382\\
 32.1968&     .789&    $-$.792&    .764&    .665&    .376\\
 32.2295&     .811&    $-$.830&    .751&    .645&    .380\\
 32.2611&     .832&    $-$.866&    .774&    .632&    .349\\
 32.3033&     .861&    $-$.913&    .786&    .636&    .317\\
 33.0987&     .394&    $-$.632&    .841&    .767&    .433\\
 33.1553&     .432&    $-$.605&    .836&    .782&    .429\\
 33.1807&     .449&    $-$.604&    .818&    .787&    .439\\
 33.2117&     .470&    $-$.600&    .849&    .770&    .423\\
 33.2333&     .484&    $-$.589&    .831&    .781&    .439\\
 33.2799&     .516&    $-$.578&    .866&    .772&    .445\\
 33.3015&     .530&    $-$.604&    .849&    .782&    .426\\
 34.1015&     .067&    $-$.882&    .798&    .666&    .371\\
 34.1330&     .088&    $-$.875&    .816&    .644&    .373\\
 34.1801&     .119&    $-$.824&    .814&    .672&    .376\\
 34.2060&     .137&    $-$.824&    .778&    .700&    .373\\
 34.2470&     .164&    $-$.793&    .813&    .703&    .392\\
 34.2698&     .180&    $-$.780&    .848&    .704&    .407\\
 34.2933&     .195&    $-$.770&    .851&    .691&    .386\\
 35.3079&     .876&    $-$.930&     -  &    .598&    .360\\
\hline
\end{tabular}
\end{center}
\vfill \eject

\centerline{3}

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\centerline{\epsffile{4145-f1.ps}}
\centerline{Figure 1}
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\beginauthors
\authorsrightcol
L.N. BERDNIKOV
O.V. VOZIAKOVA
Sternberg Astronomical Institute
13, Universitetskij prosp.
Moscow 119899, Russia
\endauthors
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%\references

Reference:

Berdnikov L.N., 1992, {\it Pis'ma Astron. Zh.}, {\bf 1}, 654


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