COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                      Number 2070

                                Konkoly Observatory
                                Budapest
                                1982 January 13

                                HU ISSN 0374-0676




       OBSERVATIONS OF THE 1981 ECLIPSE OF RZ Oph




  The long period Algol-type binary RZ Oph was photoelectrically 
observed in summer 1981 at the University Observatory in
Brno. During 9 observing nights spread in the time period
between 1 June and 4 September 33 and 27 individual observations
were performed in the V and B colours, respectively. The 
observations cover relatively large portions of the light curve out
of the eclipse, the disk eclipse before the 1st and after the
4th contacts, and the whole phase of the totality.
  We did not succeed in observing the descending and ascending
branches of the eclipse, this is why the whole light curve of
the eclipse as well as its time minimum cannot be presented
here. The observed depths of the minimum - 0.73 mag in the V
colour and 1.57 mag in the B one - are in very good accordance
with the measurements performed by Baldwin (1978) and Baldinelli
and Ghedini (1977).
  The presented observations are attached to the three 
comparison stars

BD +7d3828    V = 10.18   B = 11.52
                    +-2         +-3
BD +6d3928    V =  9.94   B = 11.14
                    +-2         +-3
BD +6d3918    V =  9.16   B = 10.51
                    +-1         +-1

 The photometric data for these stars were derived from the 
measurements of 8 standard stars in the neighbourhood of the 
variable.
   The observations of RZ Oph grouped in the normal points 
representing each observing night follow.

---------------------------
J.D.           V        B
---------------------------
244 4756.55   9.65:  10.88
     788.39   9.67   10.83
     812.40   9.72   10.89
     819.38  10.39   12.32
     821.38  10.37   12.44
     822.36  10.42   12.45
     823.35  10.40   12.45
     838.36   9.72   10.89
     847.32   9.73   10.89
     852.30   9.69   10.86
--------------------------




            J. PAPOUSEK and M. VETESNIK
            Department of Astronomy
            J.E. Purkyne University
            Brno, Czechoslovakia





 References:
 Baldwin, B.W., 1978, Ap.J. 226, 937 [BIBCODE 1978ApJ...226..937B ]
 Baldinelli, L., Ghedini, S., 1977, IBVS 1228