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\usepackage{ibvs2}
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\begin{document}

\IBVShead{5446}{5 August 2003}

\IBVStitle{Elements for 5 Variable Stars}

\IBVSauth{H\"{a}ussler, K.$^1$; Berthold, T.$^1$$^,$$^2$; Kroll, P.$^2$}

\IBVSinst{Bruno-H.-B\"{u}rgel-Sternwarte, T\"{o}pelstr. 46, D-04746 Hartha, Germany}

\IBVSinst{Sternwarte Sonneberg, Sternwartestr. 32, D-96515 Sonneberg, Germany}

\indent {
\small{email: sternwartehartha@lycos.de, tb@stw.tu-ilmenau.de, pk@stw.tu-ilmenau.de}}

\SIMBADobj{NSV 8001}
\SIMBADobj{NSV 8095}
\SIMBADobj{NSV 8097}
\SIMBADobj{NSV 8132}
\SIMBADobj{NSV 8184}

\begintext

\noindent{
The discovery of the variability of these stars has been reported by 
Hoffmeister (1968), Morgenroth (1934, 1935) and Ross (1927) a long while ago; 
nevertheless there were no ephemerides published until today.
Photographic plates of a field around $\kappa$ Oph, 
taken with the Sonneberg Observatory 40cm Astrograph during the years 1964-1994,
were used to determine the type of variability as well as first elements 
(see \mbox{Table 1}).
The elements listed below were obtained by means of least-squares solutions.
Photographic amplitudes were derived with respect to magnitudes of the 
comparison stars given in Table 3. Individual data are available upon request.}

\vskip 3mm
\parindent0mm
{\em Remarks:}
\vskip 3mm
{\em NSV 8001}

This star is known to be an infrared source (IRAS 16490 +0823). The variability
was also confirmed by the ROTSE experiment (ROTSE1 J 165124.98 + 081853.8; 
Akerlof et al., 2000) but no period could be derived. The shape of the light curve
varies.
\vskip 3mm
{\em NSV 8184}

Obviously the period varies. Elements given below are at least valid for an interval of JD~2442900-2449500.
Unfortunately there were not enough older plates available 
to determine date of the period change as well as the value of the period acting in the time
before the interval mentioned above.
\vskip 3mm

This research made use of the SIMBAD data base, operated by the CDS
at Strasbourg, France.

\vfill\eject

\large
\begin{samepage}
\IBVS2fig{7cm}{5446-f1.eps}{Light curve of NSV 8001}{5446-f2.eps}{Light curve of NSV 8095}
%%\IBVSfigKey{54446-f1.eps}{NSV 8001}{light curve}
%%\IBVSfigKey{54446-f2.eps}{NSV 8095}{light curve}
\IBVS2fig{7cm}{5446-f3.eps}{Light curve of NSV 8097. Triangles denote observations fainter than 15\fmm9}{5446-f4.eps}{Light curve of NSV 8132}
%%\IBVSfigKey{54446-f3.eps}{NSV 8097}{light curve}
%%\IBVSfigKey{54446-f4.eps}{NSV 8132}{light curve}
\IBVS2fig{7cm}{5446-f5.eps}{Light curve of NSV 8184 (JD 2442924-2449488)}{5446-f6.eps}{($O-C$) diagram for NSV 8184}
%%\IBVSfigKey{54446-f5.eps}{NSV 8184 (JD 2442924-2449488)}{light curve}
%%\IBVSfigKey{54446-f6.eps}{NSV 8184}{O-C diagram}
\end{samepage}


\begin{table}[!ht]
\centerline{\normalsize Table 1. Summary of this paper}
\large
\vskip 3mm
\begin{center}
\begin{tabular}{ccrrrrcc}
\hline
Star   & Type &  Epoch    &Period &Max. & Min. & M$-$m & No. of \\
       &      & 2400000+ & (day)  &     &      &     & Plates   \\
\hline
NSV 8001  & M    &42935.0     & 260.98      & 12\fmm9 & 15\fmm6  & 0\fper30 &164 \\
          &      & $\pm$4.2   &$\pm$.36     &         &          &          &\\
NSV 8095  & SRa  &44024.5     & 101.21      & 13\fmm6 & 15\fmm1  &          &249 \\
          &      &$\pm$2.2    &$\pm$.07     &         &          &          &\\
NSV 8097  & M    &45065.7     & 279.22      & 13\fmm0 &$>$15\fmm9  &          &152 \\
          &      &$\pm$9.8    &$\pm$.72     &         &          &          &\\
NSV 8132  & RRab &44704.498   &0.50480515   & 13\fmm2 & 14\fmm4  & 0\fper17 &249 \\ 
          &      & $\pm$7     &   $\pm$72   &         &          &          &\\
NSV 8184  & RRc  &44374.383   &0.38749054   & 14\fmm1 & 14\fmm5  &          &146 \\ 
          &      & $\pm$4     &   $\pm$71   &         &          &          &(217 total)\\
\hline
\end{tabular}
\end{center}
\end{table}

\begin{table}[!ht]
\centerline{\normalsize Table 2. Individual maxima and $O-C$ values according to the elements derived in this paper}
\large
\vskip 3mm
\begin{center}
\begin{tabular}{lcrrlcrr}
\hline
Star   &  JD (max.)$^*$ &Epoch &$O-C$  &  Star   &  JD (max.)$^*$ &Epoch &$O-C$  \\
\hline
NSV 8001&38495      &$-$17&$-$3.3 &NSV 8132&39284.422&$-$10737&0.017\\
        &39286      &$-$14&4.7    &        &39287.453&$-$10731&0.019\\
        &39537      &$-$13&$-$5.2 &        &39288.461&$-$10729&0.018\\
        &42953      &0  &18.0     &        &39293.497&$-$10719&0.006\\
        &44757      &7  &$-$4.9   &        &39615.549&$-$10081&$-$0.008\\
        &45003      &8  &$-$19.8  &        &44704.491&0       &$-$0.007\\
        &45810      &11 &4.2      &        &44749.419&89      &$-$0.006\\
        &46595      &14 &6.3      &        &45441.498&1460    &$-$0.015\\
NSV 8095&39266      &$-$47&$-$1.6 &        &45854.459&2278    &0.015\\
        &44024      &0    &$-$0.5 &	   &46173.487&2910    &0.006\\
        &45441      &14 &$-$0.4   &NSV 8184&38521.480&$-$15105&0.141\\
        &45854      &18 &7.7      &        &39284.422&$-$13136&0.114\\
        &47770      &37 &0.7      &        &44266.666&$-$278  &0.005\\
        &48067      &40 &$-$5.9   &        &44346.479&$-$72   &$-$0.005\\
NSV 8097&38642      &$-$23&$-$1.7 &        &44372.438&$-$5    &$-$0.008\\
        &45077      &0    &11.3   &        &44374.398&0       &0.015\\
        &46173      &4    &$-$9.6 &        &44732.432&924     &0.007\\
NSV 8132&38553.465&$-$12185&0.018 &        &45104.417&1884    &0.001\\
        &38555.466&$-$12181&0.000 &        &45822.429&3737    &$-$0.007\\
        &38556.466&$-$12179&$-$0.010&      &46173.487&4643    &$-$0.015\\
        &38557.467&$-$12177&$-$0.018&      &49154.458&12336   &$-$0.009\\
        &38882.544&$-$11533&$-$0.036&      &49488.498&13198   &0.015\\


\hline
\end{tabular}
\end{center}
\centerline{\normalsize $^*$ Heliocentric times for the RR Lyr variables}
\end{table}

\vfill\eject

\begin{table}
\centerline{\normalsize Table 3. Comparison stars and cross references}
\large
\vskip 3mm
\begin{center}
\begin{tabular}{ccrcr}
\hline
    &  NSV 8001     & &  NSV 8095    &\\
    &  ROSS 208       & &  ROSS 210       & \\
    &  GSC 975.1093 & &  GSC 976.1649 & \\
\hline
Comp. No.  &  GSC      & m$^*$     & GSC      & m$^*$\\
\hline
1   &  975.0578 &  12\fmm7  & 976.0814        & 12\fmm9\\
2   &  975.0289 &  13\fmm3  & 976.1546        & 13\fmm9\\
3   &  975.0695 &  13\fmm3  & 976.1023        & 14\fmm0\\
4   &  975.0209 &  14\fmm8  & 976.1645        & 14\fmm8\\
5   &  975.0700 &  15\fmm3  & 976.1234        & 15\fmm2 \\
\hline
&&&&\\
&&&&\\
\hline
    & NSV 8097   & & NSV 8132 &\\
    & 67.1934      & & 487.1934     &\\
    & GSC 393.1531 & &GSC 976.1682& \\
\hline
Comp. No.  &  GSC/USNO     & m$^*$     & GSC     & m$^*$\\   
\hline
1   & 406.3241 & 12\fmm7&  976.0868 &  13\fmm2\\
2   & 393.1517 & 13\fmm5&  976.1285 &  14\fmm3\\
3   & 393.1891 & 13\fmm6&  976.0436 &  14\fmm4\\
4   & 393.1293 & 14\fmm6&           &  \\
5   & 393.1281 & 14\fmm9&           &  \\
6   & 0900-09185651 & 16\fmm3&      &  \\
\hline
&&&&\\
&&&&\\
\hline
    & NSV 8184   & &  &\\
    & S 10327      & &   &\\
    & GSC 410.1238 & && \\
\hline
Comp. No.  &  GSC     & m$^*$     &      & \\   
\hline
1   & 410.1498 & 14\fmm0&  &  \\
2   & 410.0316 & 14\fmm5&  &  \\
\hline

\end{tabular}
\end{center}
\centerline{\normalsize $^*$ Magnitudes refer to the B values of the USNO$-$A2.0 catalogue}
\end{table}

\references

Akerlof, C. et al., 2000, {\it Astron. Journal}, {\bf 119}, 1901

Hoffmeister, C., 1968, {\it Astron. Nachr.}, {\bf 290}, 277

Morgenroth, O., 1934, {\it Astron. Nachr.}, {\bf 252}, 389

Morgenroth, O., 1935, {\it Astron. Nachr.}, {\bf 254}, 369

Ross, F. E., 1927, {\it Astron. Journal}, {\bf 37}, 155

\endreferences

\IBVSedata{5446-t4.txt}
\IBVSdataKey{5446-t4.txt}{NSV 8001}{photometry}
\IBVSedata{5446-t5.txt}
\IBVSdataKey{5446-t5.txt}{NSV 8095}{photometry}
\IBVSedata{5446-t6.txt}
\IBVSdataKey{5446-t6.txt}{NSV 8097}{photometry}
\IBVSedata{5446-t7.txt}
\IBVSdataKey{5446-t7.txt}{NSV 8132}{photometry}
\IBVSedata{5446-t8.txt}
\IBVSdataKey{5446-t8.txt}{NSV 8184}{photometry}

\end{document}
