COMMISSION 27 OF THE I. A. U.
          INFORMATION BULLETIN ON VARIABLE STARS
                       Number 926

                                    Konkoly Observatory
                                    Budapest
                                    1974 September 27


             FLARE STARS IN THE OBSCURING CLOUDS
                  OF OPHIUCHUS AND SCORPIUS

     From the 31st of March to the 24th of May of this year,
36 ultraviolet multiple exposure plates were obtained using
our Tonantzintla Schmidt camera and centering at alpha = 16h23m
and delta = -24deg20', covering about 20 square degrees. In most
cases 6 different consecutive exposures of 10 or 15 minutes
each were made, with a time interval of less than one second
between exposures. There were 210 different exposures with a
total time of effective observation of 43h5m.
    The field covered during our present search coincides
with the region in Ophiuchus and Scorpius in which Struve and
Rudkjobing (ApJ 109, 92 1949) and Haro (Astr.J. 54, 188 1949)
found 23 H alpha emission objects. By the way, it has been proven
that the great majority, if not all, of these emission stars
are of the T Tauri type. In particular the Struve et al. 
object No. 24, described as "(underexposed) a double star", in
which they did not detect emission lines corresponds to the
Haro H alpha emission star No. 7 and shows a very red and small
cometary nebula. It seems that both the H alpha emission and the
red cometary nebula are mainly related to southern component
of this double star.

                          Table 1
           Flare Stars in Ophiuchus and Scorpius

Tonantzintla     R.A.       Dec.     Mag. in U     delta-m U   Date of
   Number       (1900)     (1900)   at Minimum                 Flare-Up

     1         16h17m.9   -25deg44'    >18.5         >4.7      23-V-1974
     2         16 19  2   -26   09     >18.0         >3.5      22-V-1974
     3         16 20  0   -24   43      15.8          2.0      23-V-1974
     4         16 22  3   -25   00      18.0          3.0      26-IV-1974

    Table 1 gives the data for the 4 flare stars found. The
brightest flare star, during minimum, is No. 3 and it is located
in a rather obscure area in Ophiuchus. Flare stars Nos. 1, 2 and
4 lie in Scorpius. The coordinates and magnitudes are approximate. 
Identification charts for these 4 flare stars and the
reproduction of the outburst photographs will be published later.

    September 12, 1974.
                                           G. HARO
                                           E. CHAVIRA

                               Instituto Nacional de Astrofisica,
                               Optica y Electronica
                               Tonantzintla, Mexico