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[vsnet-obs 3808] CVC 108 (PV Per, V1363 Cyg)



BELGIAN ASTRONOMICAL SOCIETY V.V.S. -  Working Group Variable Stars
Cataclysmic Variables Circular No.108            1996, September 16
Ed.: T. Vanmunster, Walhostraat 1A, 3401 Landen, BELGIUM
     Internet: tvanmuns@innet.be                  TEL. 32-11-831504
     --------------------------------------------------------------
         The CATACLYSMIC VARIABLES Home Page: http://vsnet.cv.psi.edu
===================================================================

PV Per [UG, 14.9p - 20:p]
=========================

Eric Broens, Mol, Belgium reports his visual detection of an outburst
of the CVAP object PV Per. Confirmation by CCD has been obtained from
Tonny Vanmunster, CBA-Belgium Observatory, Belgium.

1996 Sep 14.026 UT, [14.9  (G. Poyner, 0.40-m refl.);
     Sep 15.924 UT,  14.8  (E. Broens, 0.35-m refl., seq: GSC);
     Sep 15.933 UT,  15.6  (T. Vanmunster, 0.25-m SCT+ST-7, unfilt.);


PV Per is a little studied cataclysmic variable, which was last seen
in outburst by M. Iida (Japan) on March 10, 1996 [Outburst Activity
Database of Selected Cataclysmic Variables]. This was a faint outburst, 
observed by CCD only.


V1363 Cyg [UGZ:, 13.0p - <17.6p]
================================

Gary Poyner, Birmingham, UK has detected a brightening of this
interesting variable, which is part of the TA/BAAVSS Recurrent Objects
Programme. His observation was confirmed by Tonny Vanmunster, CBA-
Belgium Observatory, using a 25-cm SCT and CCD. Available observations :


1996 Sep 10.972 UT, [15.6  (G. Poyner, 0.40-m refl., seq: TA);
     Sep 12.896 UT,  15.9  (G. Poyner);
     Sep 12.942 UT,  15.9  (G. Poyner);
     Sep 12.972 UT,  16.5  (T. Vanmunster, 0.25-m SCT+ST-7, unfilt.);
     Sep 13.903 UT, [15.6  (G. Poyner);
     Sep 14.979 UT,  16.8  (T. Vanmunster & R. Fidrich, 0.25-m SCT+
                            ST-7 CCD, unfiltered exposure);


The exact nature of V1363 Cyg is still unknown. Some sources [Downes &
Shara] list it as an UGZ:-type dwarf nova, while others [Bruch &
Schimpke, A&AS, 93, 419-439, June 1992] classify it as a possible 
VY Scl type variable, based on spectroscopic observations. Follow-up 
observations therefore are highly encouraged.


Tonny Vanmunster