COMMISSION 27 OF THE I.A.U.
               INFORMATION BULLETIN ON VARIABLE STARS
                            Number 1471

                                                      Konkoly Observatory
                                                      Budapest
                                                      1978 September 12


                        NS Mon

I observed the light variations on 425 plates (Sky-patrol
Sonneberg Observatory and Bruno-H.-Burgel-Observatory Hartha).
13 new minima and the following elements were obtained:

    Min.(hel.)= J.D. 2441599.600 + 0d.9399163 * E      (EW)

        max.= 10m.6 ph       min.= 11m.1 ph/11m.1 ph


Min.(hel.)     E        O-C
J.D.24..

38673.614    -3113     -0.026
39057.613    -2704.5   +0.017
  146.426    -2610     +0.008
  441.534    -2296     -0.018
40152.585    -1539.5   -0.013
  504.560    -1165     -0.037
41329.375    - 287.5   +0.001
  330.330    - 286.5   +0.016
  385.334    - 228     +0.033
  599.585    +-  0     -0.015
  680.468    +  86     +0.035
  983.569    + 408.5   +0.013
42448.326    + 903     -0.018


Further particulars will be published in "Mitteilungen der
Bruno-H.-Burgel-Sternwarte Hartha" Heft 14.


                      K. HAUSSLER

               Bruno-H.-Burgel-Sternwarte
                    DDR-7302 Hartha