BELGIAN ASTRONOMICAL SOCIETY V.V.S. - Working Group Variable Stars Cataclysmic Variables Circular No.14 1994, September 2 Ed.: T. Vanmunster, Walhostraat 1A, 3401 Landen, BELGIUM Internet: tvm@lms.be TEL. 32-11-831504 P. Van Cauteren, de Borrekenslaan 54, 2630 Aartselaar, BELGIUM 73064.1123@compuserve.COM TEL. 32-3-8774098 =================================================================== V1113 Cyg [UGSS, 14p - <17p] ============================ An outburst of this poorly studied dwarf nova has been detected by Tonny Vanmunster, Landen, Belgium, and subsequently has been confirmed by Gary Poyner, Birmingham, UK. No sequence is available for this variable, so magnitude estimates are given with reference to a companion star about 30" NNE of V1113 Cyg. A rough estimate would place the variable around mag 13.5. We could find no additional information on this cataclysmic variable in several professional articles. CCD photometry therefore is highly recommended. Please inform us on photometric or spectroscopic observations obtained during the present outburst. 1994 08 30.031 UT, [14.0 (G. Poyner, 0.40-m refl.); 08 30.869 UT, [14.5 (T. Vanmunster, 0.35-m refl.); 09 01.882 UT, 0.3 mag > companion (T. Vanmunster); 09 01.914 UT, 0.3 mag > companion (G. Poyner); The variable was last seen in outburst on September 21, 1993 (mag. approx. 14.0) by Gary Poyner. His observation probably is the first reported visual sighting of the variable. Our records only mention one additional outburst, observed on August 6, 1964. V795 Cyg [UGSS, 13.4p - <17.9:p] ================================ This dwarf nova is returning to a minimum state. The table below summarizes photometric observations covering the present outburst. ------------------------------------------------------------------------ DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE ------------------------------------------------------------------------ 1994 08 24.86 [13.7 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 26.929 12.9: mv AA Schmeer, P. 20-cm SCT Mail(sch) 1994 08 26.981 13.4 mv TA Vanmunster, T. 35-cm refl. VVS 1994 08 27.506 12.8 CV * Kato, T. 60-cm refl. Mail(kat) 1994 08 27.835 13.0 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 27.872 13.0 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 27.991 13.5 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 28.897 14.0 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 28.911 13.8: mv TA * Broens, E. 35-cm refl. VVS 1994 08 29.020 13.2 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 29.890 14.0 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 29.916 13.1 mv TA * Poyner, G. 40-cm refl. Mail(poy) 1994 09 01.890 14.5 mv TA * Vanmunster, T. 35-cm refl. VVS UZ Boo [UGWZ, 11.5v - 20.4V] ============================ The fading of UZ Boo is still ongoing. The table below lists new observations received since the photometric summary of CVC No.13. ------------------------------------------------------------------------ DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE ------------------------------------------------------------------------ 1994 08 19.870 11.9 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 20.847 12.4 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 20.858 12.2 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 21.84 11.8 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 23.8 12.4 mv * Verdenet, M. Mail(swe) 1994 08 23.82 12.5: mv * Schweitzer, E. Mail(swe) 1994 08 24.828 12.2 mv AA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 24.829 12.9 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 24.850 12.9 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 25.829 12.5 mv AA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 25.838 12.7 mv AA * Schmeer, P. 20-cm SCT Mail(sch) 1994 08 26.872 13.0 mv AA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 27.439 12.7 mv * Koshiro, M. 30-cm refl. Mail(kat) 1994 08 27.472 13.0 mv * Makiguchi, N. 25-cm refl. Mail(kat) 1994 08 27.8 12.9 mv * Szentasko, L. 34-cm refl. Mail(sze) 1994 08 27.85 13.5 mv * Verdenet, M. Mail(swe) 1994 08 27.864 13.0 mv AA * Poyner, G. 22-cm refl. Mail(poy) 1994 08 28.494 13.1: mv * Takenaka, N. 20-cm SCT Mail(kat) 1994 08 28.500 13.1 mv * Makiguchi, N. 25-cm refl. Mail(kat) 1994 08 28.8 13.3 mv * Szentasko, L. 34-cm refl. Mail(sze) 1994 08 28.834 13.1 mv AA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 28.847 13.0 mv AA * Vanmunster, T. 35-cm refl. VVS 1994 08 28.853 13.0 mv AA * Broens, E. 35-cm refl. VVS 1994 08 28.854 13.2 mv AA * Poyner, G. 40-cm refl. Mail(poy) 1994 08 28.932 13.0 mv AA * Vanmunster, T. 35-cm refl. VVS 1994 08 29.838 13.3: mv AA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 29.850 13.2 mv AA * Vanmunster, T. 35-cm refl. VVS 1994 08 29.854 13.4 mv AA * Poyner, G. 40-cm refl. Mail(poy) 1994 08 29.893 13.1 mv AA * Broens, E. 35-cm refl. VVS 1994 08 29.924 13.1 mv AA * Vanmunster, T. 35-cm refl. VVS 1994 08 30.842 13.4 mv AA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 30.847 13.2 mv AA * Vanmunster, T. 35-cm refl. VVS 1994 08 30.850 13.7 mv AA * Poyner, G. 40-cm refl. Mail(poy) 1994 09 01.463 14.9 CU * Iida, M. 16-cm refl. Mail(kat) 1994 09 01.465 15.0 CU * Iida, M. 16-cm refl. Mail(kat) 1994 09 01.835 [13.3 mv AA * Broens, E. 35-cm refl. VVS 1994 09 01.847 13.8: mv AA * Vanmunster, T. 35-cm refl. VVS V493 Lyr = S10930 Lyr [UG] ========================== Also V493 Lyr is returning to its minimum. The table below lists observations received since CVC No.13. ------------------------------------------------------------------------ DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE ------------------------------------------------------------------------ 1994 08 24.843 14.1 mv TA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 25.847 14.2: mv TA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 26.875 14.3: mv TA * Pietz, J. 20-cm SCT Mail(pie) 1994 08 27.978 14.6 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 28.849 14.6 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 29.008 14.7 mv TA * Poyner, G. 40-cm refl. Mail(poy) 1994 08 29.860 14.9 mv AA * Poyner, G. 40-cm refl. Mail(poy) 1994 08 29.907 14.9 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 30.856 15.0 mv TA * Vanmunster, T. 35-cm refl. VVS 1994 08 30.866 15.0 mv AA * Poyner, G. 40-cm refl. Mail(poy) 1994 09 01.502 15.8: CU * Iida, M. 16-cm refl. Mail(kat) 1994 09 01.866 [15.1 mv TA * Vanmunster, T. 35-cm refl. VVS Tonny Vanmunster