COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                       Number 2894


                                         Konkoly Observatory
                                         Budapest
                                         14 May 1986

                                         HU ISSN 0374-0676




       PHOTOMETRIC BEHAVIOR OF DR TAURI IN THE SEASON 1985/86

      In linking to the previous sequence of comparison stars given
by Gotz (1982) the star was measured on 33 blue-sensitive plates (ORWO-ZU21
+GG13+BG12) from 24 nights obtained with the 50/70/172cm Schmidt camera of
Sonneberg Observatory covering the time interval between 18 August 1985 and
1 March 1986. The measurements, which are listed in Table I and the light
curve, which is given in Figure 1 are used to complete and to supplement our
knowledge of the brightness variations (Gotz, 1980, 1982, 1983, 1984, 1985)
of this star.


                       Table I

J.D.          m(B)      J.D.          m(B)
244...                  244....

6296.587      13.42m   	6360.569      12.48m
6298.592      12.12 	6360.582      12.30
6299.583      12.22 	6361.593      12.25
6320.519      12.08 	6385.485      12.10
6321.603      12.05 	6385.502      12.13
6321.615      12.12 	6387.504      11.69
6322.551      12.3 :	6405.369      12.28
6322.568      12.1 :	6440.381      12.14
6327.547      12.6 :	6440.397      12.20
6327.566      12.59 	6463.322      11.90
6328.514      12.97	6466.304      11.32
6351.516      12.17 	6469.273      11.30
6351.529      12.10 	6474.268      12.30
6358.552      11.98 	6488.266      13.24
6358.570      12.15 	6489.276      13.08
6359.494      12.98 	6491.281      12.04
6359.518      13.00

  When comparing the given light curve with those obtained in former years,
we find the star in an active phase, This behaviour is expressed by a total
amplitude of Delta m(B) = 2.1m and by short-time light depressions and 
brightness


increases starting from a normal light at m(B)~12.2m. The brightness 
distribution (Figure 2) of the individual measurements confirms this statement.


                              [FIGURE 1]
                              [FIGURE 2]




                                           W. GOTZ
                                 Akademie der Wissenschaften
                                 der DDR, Zentralinstitut fur
                                 Astrophysik, Sternwarte Sonneberg
                                 DDR

References;
Gotz, W., 1980, I.B.V.S., No. 1747
Gotz, W., 1982, I.B.V.S., No. 2172
Gotz, W., 1983, I.B.V.S., No. 2345
Gotz, W., 1984, I.B.V.S., No. 2513
Gotz, W., 1985, I.B.V.S., No. 2731