COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                      Number 1121

                                 Konkoly Observatory
                                 Budapest
                                 1976 April 5


              MINIMA OF RW PERSEI




      In I.B.V.S. No. 910 Baldwin published a note about the
period increase in RW Per and needed times of minima in order
to confirm his result.
     Hall and Stuhlinger confirmed the change in the period.
     I examined the star on 229 Sky Patrol Plates of the 
Sonneberg Observatory (JD. 2437668-41683) and obtained 13 times of
minima. (O-C) values calculated with the elements published by
Baldwin are given in the Table.

  Min.(hel.)     Epoch    O-C
    243...

   7730.600    +645     +0.010 ph
    902.201     658     +  024
   8060.602     670     +  038
   9063.736     746     +  053
    380.494     770     +  036
    538.831     782     -  014
    776.479     800     +  053
  40317.612     841     +  029
    858.729     882     -  010
    924.751     887     +  017
   1056.712     897     -  011
    333.932     918     +  031
    650.663     942     -  012




                           HELMUT BUSCH
                       Bruno-H.-Burgel-Observatory
                          DDR 7302 Hartha