BELGIAN ASTRONOMICAL SOCIETY V.V.S. - Working Group Variable Stars Cataclysmic Variables Circular No.120 1996, December 29 Ed.: T. Vanmunster, Walhostraat 1A, 3401 Landen, BELGIUM Internet: tvanmuns@innet.be TEL. 32-11-831504 CBA Belgium Web Page : http://www.astro.columbia.edu/~cba/be =================================================================== EG Cnc [UGWZ, 11.9v - 17:v] =========================== The second major rebrightening of EG Cnc, announced yesterday in CVC 119, has been followed photometrically by Tonny Vanmunster at the CBA Observatory, Belgium using a 0.25-m f/6.3 SC telescope and ST-7 CCD. A period analysis of unfiltered observations during a 3.5h run (Dec 28/29), using the PDM method, yields a superhump period of 0.0584 +/- 0.0009 d, after heliocentric correction and removal of a linear trend of decline. The mean semi-amplitude of the superhumps is 0.07 mag. Further time-series photometry in this stage of the outburst is of utmost importance. Correction to CVC 119 --------------------- The time, reported in CVC 119, for Vanmunsters CCD observation is wrong. The correct value is Dec 28.964 UT instead of Dec 28.974 UT. DX And [UG, 10.9p - 16.4p] ========================== DX And has returned to quiescence, as one can derive from the photo- metric summary below. ------------------------------------------- DATE (UT) MAGN MS OBSERVER ------------------------------------------- 1996 12 21.714 [12.5 mv Moeller 1996 12 21.739 12.7 mv Broens 1996 12 22.360 13.36 CV Ouda 1996 12 22.950 13.4 mv Poyner 1996 12 23.353 13.80 CV Ouda 1996 12 23.431 13.3 mv Makiguchi 1996 12 23.470 13.4 mv Itoh 1996 12 24.355 14.18 CV Ouda 1996 12 25.502 [13.6 mv Makiguchi 1996 12 25.509 14.56 CV Ouda 1996 12 25.69 14.3 mv Kinnunen 1996 12 26.094 [13.8 mv Hanson 1996 12 27.377 15.12 CV Ouda 1996 12 27.524 [13.3 mv Takahashi 1996 12 28.786 [14.6 mv Vanmunster Best wishes for 1997 to all of you and happy observing !! Tonny Vanmunster