T Leo, FG Sge, BC UMa (obs. by NAS.VSS)

            Norwegian Astronomical Society - Variable Star Section

        ***** VARIABLE STAR OBSERVATIONS - REPORT OF 1994 MAY 2 *****

   This report contains recent visual observations of selected variables
   by members of NAS.VSS. Observations are reported in full and the time
   system is Universal Time. Contributing observers: Haakon Dahle (Oslo,
   Norway); Bjorn H. Granslo (Fjellhamar, Norway); Andreas Lauvstad
   (Levanger, Norway).

   T LEONIS (UGSU)
   YYYY MM DD.DDD  OBSERVATION          MAG  CL INSTRUM.   OBSERVER
   1994 03 31.007  1(9)V(3)4           10.4  1  M152,74x  *Granslo, B. H.
   1994 04 04.041                      10.4     C203      *Dahle, H.
   1994 04 04.08   1(10)V(2)4          10.5  1  M152,74x  *Granslo, B. H.
   1994 04 08.01   4-4;5+6             11.1  1  C203,80x  *Granslo, B. H.
   1994 04 10.91   Fainter than 6     [12.4  2  C203,123x *Granslo, B. H.

   T Leo was detected in a supermaximum. Comparison stars (sequence TA):
   1 = 9.5; 4 = 10.7; 5 = 11.8; 6 = 12.4.

   FG SAGITTAE (*)
   YYYY MM DD.DDD  OBSERVATION          MAG  CL INSTRUM.   OBSERVER
   1994 02 20.175  5-5 [combined]      10.9  2  M142,49x  #Lauvstad, A.
     (Date is corrected from 1994 02 19.175)
   1994 04 04.057  7+8 [combined]      11.0  2  M152,49x  *Lauvstad, A.
   1994 04 08.08   5-6;7+7 [combined]  11.0  2  C203,80x   Granslo, B. H.
   1994 04 09.05   7+7 [combined]      11.1  2  M152,98x  *Lauvstad, A.
   1994 04 13.06   6+2;7+4 [combined]  11.4  2  C203,123x  Granslo, B. H.
   1994 04 18.019  7+4 [combined]      11.4  2  C203,123x *Granslo, B. H.
   1994 04 27.021  7-5;8+2 [combined]  12.3  2  C203,222x *Granslo, B. H.
   1994 04 28.992  Fainter than 7-2   [12.0  2  C203,123x *Granslo, B. H.
   1994 04 30.990  8-3;9+1 [resolved]  12.8  2  C203,222x *Granslo, B. H.
   1994 05 01.960  7-5;8+2 [combined]  12.3  2  C203,222x *Granslo, B. H.

   These observations indicate that a full fade has taken place and it is
   now nearly as faint that it was during the autumn of 1992.
   Comparison stars (sequence TA/AAVSO): 5 = 10.4; 6 = 11.6; 7 = 11.8;
   8 = 12.5; 9 = 12.9.

   BC URSAE MAJORIS (UGSU)
   YYYY MM DD.DDD  OBSERVATION          MAG  CL INSTRUM.   OBSERVER
   1994 04 30.967  G-6;H-4;J=V,L-1     12.5  1  C203,123x *Granslo, B. H.
   1994 05 01.948  H-5;J-2;L-2         12.7  2  C203,123x *Granslo, B. H.

   This dwarf nova is currently in one of its rare superoutbursts.
   Comparison stars (sequence AAVSO): G = 11.7; H = 12.1; J = 12.3;
   L = 12.7.

   Magnitudes are calculated from the fractional method or Pogson's step
   method. CL = class: estimated accuracy of observation; 1 = good
   (+/- 0.1 mag.), 2 = fair (+/- 0.2), 3 = poor (+/- 0.3). Instrument
   (aperture in mm): C = Schmidt-Cassegrain, M = Newtonian reflector.

   It should be noted that there is a need to improve the sequences of
   these stars. Observations of supernovae and classical novae will be
   sent in separate reports.

                                              Yours sincerely,
                                              Bjorn H. Granslo
                                              Director, NAS.VSS