COMMISSION 27 OF THE I. A. U.
       INFORMATION BULLETIN ON VARIABLE STARS
                    NUMBER 747

                                 Konkoly Observatory
                                 Budapest
                                 1972 December 27

                  


                   MH_alpha 73 - 59


  The star MH_alpha 73 - 59 of spectral type M (Merrill and
Burwell, ApJ 112, p.72) shows strong H_alpha emission lines but
despite its being situated in a Cepheus dark cloud "it is
not at all certain that this object is related to the T Tauri 
stars" (Herbig and Kameswara Rao, ApJ 174, p. 401).
  I estimated the star on 650 Sonneberg patrol plates of
1941 to 1972 (partly blue sensitive, partly photovisual range).
I could not detect any variation larger than the normal scattering 
of such observations. Therefore we have to conclude that
the object was constant within +- 0.15 mag. during the years
mentioned.
  I thank Dr. Wenzel for drawing my attention to the star.


                     E. SPLITTGERBER
                     402 Halle, DDR
                     Adam-Kuckhoff-Str. 2.




                       UV Cet


  The photoelectric monitoring of the flare star UV Cet
was carried out at Okayama Station during the period of 9
to 15 October 1972. The observations were made with the
simultaneous three-color photometer attached to 91 cm reflector. 
The observational results are summarized in the
Table.


Tokyo Astronomical Observatory      K. OSAWA
December 12, 1972                   K. ICHIMURA
                                    Y. SHIMIZU




                 Flares of UV Cet observed at Okayama
                 9 to 15 October, 1972.
                                Flares
--------------------------------------------------------------------------------
Time of               Time of (I_0+f -  I_0)/I_0  Max.     P    d_b  d_a   sigma      
Monitoring UT         Max.(UT)                   Delta m        
1972           Filter
Oct.11                                             mag     min  min  min    mag
--------------------------------------------------------------------------------
13h38m-15h54m   V 13h58.4m         0.21          0.19     0.1  0.2  0.6          
                B                  0.89          0.69     0.2  0.4  1.5  V:0.03
16 33- 18 31                                                             B:0.07 
                                                   
Oct.12
13 06- 18 20     V 13 49.8          0.64          0.54
                 B                  2.71          1.42
                                                         V:1.1  0.2  8.0
                                                         B:2.3  0.2  8.0
                 V 13 56.8          0.17          0.170
                 B                  0.86          0.647
                 V 16 24.6     >    6.32     >    2.1
                 B             >   25.03     >    3.5
                                                        V:>10   0.8 34.5  V:0.03
                                                        B:>35   0.8 39.0  B:0.07
                 V 16 56.5          0.30          0.28
                 B                  1.65          1.05
                 V                   -             -        -     - -
                 B 17 55.6          0.56          0.48    1.1  0.4  3.7
                 V 18 10.4          0.29          0.28    0.1  0.2  1.7
                 B                  1.06          0.79    0.4  0.2  2.6
Oct.13
13 35- 15 30                                                             V:0.04
15 34- 18 30                                                             B:0.05
Oct.14
12 47- 18 20     V 14 11.5          0.14          0.14    0.1  0.5  2.0
                 B                  0.40          0.37    0.4  0.5  2.5
                 V 15 06.1          0.09          0.09    0.1  1.5  1.5  V:0.04
                 B                  0.46          0.40    0.6  1.5  2.7  B:0.07
                 V 17 30.6          0.37          0.34    0.1  0.1  0.5
                 B                  1.17          0.84    0.2  0.1  0.1
-------------------------------------------------------------------------------