BELGIAN ASTRONOMICAL SOCIETY V.V.S. - Working Group Variable Stars Cataclysmic Variables Circular No.26 1995, January 24 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 =================================================================== EF Peg [UGSU, 10.7p - [17p] =========================== Available observations, covering the present superoutburst of this most exciting dwarf nova type cataclysmic variable, are listed below. A combination of bad weather, strong moonlight and an unfavourable position in the evening sky has resulted in a rather moderate covering of EF Peg's activity. ----------------------------------------------------------------------- DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE ------------------------------------------------------------------------ 1995 01 05.732 [13.0 mv TA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 10.99 [13.5 mv Bortle, J. IAU6125 1995 01 11.726 11.1 mv TA Schmeer, P. 20-cm SCT CVC 1995 01 11.740 11.1 mv TA Schmeer, P. 20-cm SCT CVC 1995 01 11.743 11.1 mv TA Poyner, G. 40-cm refl. CVC 1995 01 11.744 11.1 mv TA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 12.385 10.8 mv AA Takahashi, S. 60-cm refl. Mail(kat) 1995 01 12.70 10.8 mv Szentasko, L. 30-cm refl. Mail(tep) 1995 01 12.732 11.3 mv TA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 12.740 10.7 mv AA Vanmunster, T. 35-cm refl. VVS 1995 01 13.720 11.3 mv TA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 13.744 11.3 mv TA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 15.383 11.6 mv AA Koshiro, M. 30-cm refl. Mail(kat) 1995 01 15.73 11.3 mv AA Jensen, L. 33-cm refl. priv(jen) 1995 01 16.720 11.6 mv TA Pietz, J. 20-cm SCT Mail(pie) 1995 01 16.741 11.6 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 17.720 11.8 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 19.747 12.0 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 20.730 11.2 mv AA Diepvens, A. 15-cm refr. VVS 1995 01 20.772 11.2 mv AA Broens, E. 35-cm refl. VVS 1995 01 23.736 12.2 mv TA Pietz, J. 20-cm SCT Mail(pie) V1251 Cyg [UG:, 12.5p - [15p] ============================= The rare outburst of this interesting cataclysmic variable has been monitored intensively by observers all over the world. Their observations are summarized in the table below. The variable has now returned to its quiescent state. ------------------------------------------------------------------------ DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE ------------------------------------------------------------------------ 1994 12 23.918 [14.3 mv AA Vanmunster, T. 35-cm refl. VVS 1994 12 30.756??13.3: mv AA Schmeer, P. 20-cm SCT Mail(sch) 1994 12 30.774 13.0: mv TA Poyner, G. 40-cm refl. priv(poy) 1994 12 30.785 13.7 mv AA Vanmunster, T. 35-cm refl. VVS 1994 12 30.819 13.6 mv AA Vanmunster, T. 35-cm refl. VVS 1994 12 30.851**13.2 mv AA Broens, E. 35-cm refl. VVS 1994 12 30.865 13.8 mv TA Worraker, B. 25-cm refl. Mail(kat) 1994 12 31.4 [12.9 mv Makiguchi, N. 25-cm refl. VSOLJ 1994 12 31.713 13.4 mv Szentasko, L. 33-cm refl. Mail(sze) 1994 12 31.774 [13.5 mv Pietz, J. 20-cm SCT Mail(pie) 1994 12 31.833 13.2 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 01.385 13.6 mv Koshiro, M. 30-cm refl. VSOLJ 1995 01 01.438 13.4 mv Makiguchi, M. 25-cm refl. VSOLJ 1995 01 01.738 13.3 mv TA Poyner, G. 40-cm refl. priv(poy) 1995 01 01.771 13.7 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 01.781 13.3 mv TA Poyner, G. 40-cm refl. priv(poy) 1995 01 01.810 [13.5: mv Pietz, J. 20-cm SCT Mail(pie) 1995 01 01.844 13.5 mv TA Hurst, G. 44-cm refl. TAEC 913 1995 01 02.392 13.6 mv Koshiro, M. 30-cm refl. VSOLJ 1995 01 02.401 13.5 mv Makiguchi, M. 25-cm refl. VSOLJ 1995 01 02.406 13.6: mv Moriyama, M. 33-cm refl. VSOLJ 1995 01 02.442 13.4 mv Makiguchi, M. 25-cm refl. VSOLJ 1995 01 02.775 13.6 mv TA Poyner, G. 40-cm refl. Mail(poy) 1995 01 03.747 13.6 mv Pietz, J. 20-cm SCT Mail(pie) 1995 01 03.768 13.1 mv TA Broens, E. 35-cm refl. VVS 1995 01 03.776 13.8 mv AA Vanmunster, T. 35-cm refl. VVS 1995 01 03.819 13.9 mv TA Poyner, G. 40-cm refl. Mail(poy) 1995 01 04.736 13.7: mv Pietz, J. 20-cm SCT Mail(pie) 1995 01 04.741 13.5 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 04.763 13.3: mv TA Broens, E. 35-cm refl. VVS 1995 01 04.797 13.6 mv AA Vanmunster, T. 35-cm refl. VVS 1995 01 05.725 13.8: mv Pietz, J. 20-cm SCT Mail(pie) 1995 01 05.740 13.7 mv AA Schmeer, P. 20-cm SCT Mail(sch) 1995 01 05.774 14.0 mv TA Poyner, G. 40-cm refl. Mail(poy) 1995 01 06.398 13.8 mv Makiguchi, M. 25-cm refl. VSOLJ 1995 01 06.756 14.1 mv TA Poyner, G. 40-cm refl. Mail(poy) 1995 01 07.413 [13.5 mv Makiguchi, M. 25-cm refl. VSOLJ 1995 01 08.381 [13.0 mv Koshiro, M. 30-cm refl. VSOLJ 1995 01 08.760 14.3 mv TA Poyner, G. 40-cm refl. Mail(poy) 1995 01 09.420 [13.2 mv Makiguchi, M. 25-cm refl. VSOLJ 1995 01 11.771 [14.3 mv AA Vanmunster, T. 35-cm refl. VVS 1995 01 11.772 14.5 mv TA Poyner, G. 40-cm refl. Mail(poy) 1995 01 12.759 [14.3 mv TA Poyner, G. 40-cm refl. Mail(poy) ** : correction for value published in CVC No.24. ?? : questionable observation IR Lyr [Unknown Type, 14.6p - 16.0p] ==================================== This variable is now disappearing in the evening twilight. An update of available photometric observations is given below (see also CVC No. 19). ------------------------------------------------------------------------ DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE ------------------------------------------------------------------------ 1994 10 09.836 [14.7 mv GSC Broens, E. 35-cm refl. VVS 1994 10 21.786 [14.1 mv GSC Vanmunster, T. 35-cm refl. VVS 1994 10 24.833 14.6: mv GSC Vanmunster, T. 35-cm refl. VVS 1994 10 25.878 14.7 mv GSC Vanmunster, T. 35-cm refl. VVS 1994 10 26.800 14.9 mv GSC Broens, E. 35-cm refl. VVS 1994 10 26.807 14.8 mv GSC Poyner, G. 40-cm refl. Mail(poy) 1994 10 26.808 14.6 mv GSC Vanmunster, T. 35-cm refl. VVS 1994 10 27.835 [14.7 mv GSC Broens, E. 35-cm refl. VVS 1994 10 28.819 [14.7 mv GSC Broens, E. 35-cm refl. VVS 1994 10 28.830 14.8 mv GSC Vanmunster, T. 35-cm refl. VVS 1994 11 01.771 15.0 mv GSC Poyner, G. 40-cm refl. Mail(poy) 1994 11 01.826 [14.7 mv GSC Broens, E. 35-cm refl. VVS 1994 11 06.772 14.6 mv GSC Poyner, G. 40-cm refl. Mail(poy) 1994 11 08.792 [14.7 mv GSC Broens, E. 35-cm refl. VVS 1994 11 08.808 [13.9 mv GSC Vanmunster, T. 35-cm refl. VVS Tonny Vanmunster