COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 2028

                                   Konkoly Observatory
                                   Budapest
                                   1981 October 19

                                   HU ISSN 0374-0676




   THE MAXIMUM TIMES AND NEW LIGHT ELEMENTS OF 44 TAURI




  The Delta Scuti type variable 44 Tau has been observed at Ege
University Observatory from December 21, 1979 to November 16,
1980. The observations were carried out with the 48 cm Cassegrain
reflector equipped with an unrefrigerated EMI 9781 A photomultiplier. 
The intermediate band filters were used at the 
observations.
  The maximum times obtained during the observations are given
in the following table.

                          Table
               The maximum times of 44 Tau
------------------------------------------------------
JD Hel.              O-C(I)       O-C(II)  E    Filter
------------------------------------------------------
2444235.4116        -0.0083d     +0.0043d -103   u
   .4117            -0.0082      +0.0044  -103   v
   .4124            -0.0075      +0.0051  -103   b
   .4160            -0.0039      +0.0087  -103   y
236.4161            -0.0181      -0.0067  - 96   u
   .4150            -0.0192      -0.0078  - 96   v
   .4170            -0.0172      -0.0058  - 96   b
   .4181            -0.0161      -0.0047  - 96   y
250.3450            +0.0004      -0.0042     0   u
   .3440            -0.0006      -0.0052     0   v
   .3454            +0.0008      -0.0038     0   b
   .3438            -0.0008      -0.0054     0   y
252.3845            +0.0113      +0.0044    14   u
   .3860            +0.0128      +0.0059    14   v
   .3900            +0.0168      +0.0099    14   b
   .3845            +0.0113      +0.0044    14   y
269.3504            +0.0239      -0.0026   131   b
   .3520            +0.0255      -0.0010   131   y
-----------------------------------------------------

  For the determination of preliminary elements
JD Hel.2444 250.3446 was taken as a reference time and a period
of 0.1449d given by Wizinowich and Percy (1979) was adopted.
  The O-C(I) residuals were computed with these elements. The
least squares solution has been applied and the new light elements
were derived as follows:


     Max.= JD Hel.2444 250.3492 + 0.145067d E
                           +-15       +-19


  The O-C(II) residuals were computed using these new light
elements.
  The light curves and the variations of their amplitudes will
soon be published elsewhere.





            O. TUMER, A.Y. ERTAN, S. EVREN, Z. TUNCA
            and C. IBANOGLU

            Ege University Observatory
            Bornova, Izmir-Turkey





Reference:

Wizinowich, P. and Percy, J.A.: 1979, Publ.A.S.P. 91, 53. [BIBCODE 1979PASP...91...53W ]