COMMISSION 27 OF THE I. A. U.
          INFORMATION BULLETIN ON VARIABLE STARS
                       Number 1071

                                 Konkoly Observatory
                                 Budapest
                                 1975 November 29


          A NEW BRIGHT ECLIPSING STAR 71 Dra

       While testing a new photometer I found that the star 71 Dra
= HD 193964 (B9, m_v = 5.6) is probably an eclipsing star. The 
observations were made in four spectral regions, defined by

                   Lambda  DeltaLambda
       P           374 nm     20 nm
       Y           466 nm     "
       V           543 nm     "
       MR          700 nm     "

The descent of the brightness on 1975 Aug. 6/7 (JD 2442631) is
shown by the diagram. In all colours the magnitude differences
with respect to the normal brightness are given. The three 
comparison stars are

       I    2 Cep = HD 195725
       III 68 Dra = HD 192455
       IV  66 Dra = HD 191277

Within the following time intervals no deviations  greater than
0.01m from the normal brightness are detectable:

                  JD 2442628.44...628.58
                         630.43...630.51
                         632.41...632.48
                         634.41...634.49  
                         635.45...635.49
                         637.41...637.45
                         638.39...638.45
                         639.39...639.46
                         653.35...653.43

The star is a spectroscopic binary (Wilson, General Catalogue of
Stellar Radial Velocities, star 12707; see also Abt and Biggs,
Bibliography of Stellar Radial Velocities, 1972).
This new variable receives the provisional designation S 10796.



                          W. FURTIG
                     Sonneberg Observatory of
                 Central Institute for Astrophysics of
                   Academy of Sciences of the GDR


                      [FIGURE 1]