COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 1673

                                     Konkoly Observatory
                                     Budapest
                                     1979 September 18


             MOMENTS OF MINIMA OF AK Her



	The light of the eclipsing binary star AK Her is measured
from photographs made by the "Sky Service" Astronomical Observatory, 
Odessa University within 1952 through 1978. The total number
of photographic and photovisual light measurements obtained
amounts to 248 and 579, respectively.
From all this observational material separately on photometric 
systems of observations 25 moments of primary and secondary 
minima have been determined. The photometric elements  (T.
Herczeg, Bonn.Verof., 63, 1962) used are

Min.hel.J.D.= 2436025.4730 + 0.42152421d*E.

The results of determinations of moments of minimum with
indexing the minimum-type as well as E and (O-C) with respect to
the elements above are summarized in the Table.

Min.hel.J.D.     *        E       O-C

2434866.273    I pg     -2750   -0.008
.486           II pg    .5      -0.006
36545.211      I pv     +1233   -0.001
.414           II pv    .5      -0.009
36570.502      I pg     +1293   -0.002
.713           II pg    .5      -0.002
36908.565      I pv     +2095   -0.001
.765           II pv    .5      -0.012
37128.176      I pv     +2616   -0.004
.386           II pv    .5      -0.006
37612.513      I pv     +3765   +0.001
.722           II pv    .5      -0.001
37858.684      I pg     +4349   +0.002
.893           II pg    .5       0.000
38049.635      I pv     +4802   +0.002
.843           II pv    .5       0.000
38897.733      I pv     +6814   -0.006
.942           II pv    .5      -0.008
40017.724      I pv     +9471   -0.005
2440581.316    I pv     +1080   +0.009
.506           II pv    .5      -0.011
41109.475      I pv     +12061  -0.002
.688           II pv    .5       0.000
42220.195      I pv     +14696  +0.002
.388           II pv    .5      -0.015





                     V.G. KARETNIKOV
                     Astronomical Observatory
                     of the Odessa University
                     U.S.S.R.