COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 738 Konkoly Observatory Budapest 1972 November 15 S 10764 - A SLOWLY VARIABLE OBJECT IN THE GLOBULAR CLUSTER M3 WITH U-B~~-1.0m On plates taken with the Tautenburg 134 cm Schmidt telescope I discovered a slowly varying object S 10764 which highly probably is a physical member of M3. Coordinates (1855.0): 13h35m29s +29d13' By comparison with the standards of Johnson and Sandage (ApJ 124, p. 379) the following limits of the variations were measured: U B V ------------------------- maximum 17.3 18.3 17.9 minimum 18.8 19.8 18.9 ------------------------- For further details see next number of MVS. Figure 1 shows the new variable in its surroundings; in figure 2 the positions of the star in the V/B-V diagram (l.c.) are given. I thank the staff of the Karl-Schwarzschild-Observatorium Tautenburg for lending their plates. [FIGURE 1] [FIGURE 2] L. MEINUNGER Akademie der Wissenschaften der DDR Zentralinstitut fur Astrophysik Sternwarte Sonneberg VISUAL OBSERVATIONS OF EV LACERTAE The flare star EV Lac was observed visually for a total of 13.3 hours during the September 1972 international programme by members of the Variable Star Section of the British Astronomical Association. Hours of coverage are given below, parentheses indicating poor sky conditions. ------------------------------------------------ 1972 U.T. Observers Sept. ------------------------------------------------ 1 2115- 2215 R.J. Livesey 2 2100- 2234 RJL, H.W.Smith 4 2107- 2253 RJL, HWS 5 2156- 2225 HWS 6 (2128- 2208) HWS 7 2100- 2200 RJL 8 2059- 2202 RJL 9 2025- 2125,2152 - 2308 RJL 10 2129- 2212 RJL, HWS 11 2041- 2045,(2045 - 2145) HWS, RJL 14 2112- 2157 HWS 15 (2225- 2325) RJL ------------------------------------------------ Two possible flares were recorded by Smith, outside the interval of simultaneous coverage by Livesey: 1972 U.T. Amplitude Duration -------------------------------- Sep.10 21h36.0m 0.5m 21m 10 22 06.2 0.8 22 -------------------------------- Total coverage 13h20m over 12 nights. British Astronomical Association J.E. ISLES