[vsnet-alert 22570] KIS J192651.94+503301.7: likely new WZ Sge type dwarf nova

[Tonny Vanmunster tonny.vanmunster@gmail.com via vsnet-alert]

Dear colleagues,

I have just concluded the analysis of my 2018, Sep 27/28 and Sep 28/29 unfiltered CCD photometry sessions of KIS J192651.94+503301.7. Observations were made at CBA Extremadura Observatory,  using a 0.40-m f/5.1 telescope and SX-46 CCD camera, under very clear skies but with strong moonlight. 

 

The resulting light curve clearly reveals the presence of superhump-like modulations with an amplitude of 0.09 mag. There’s a hint of secondary humps, probably early superhumps and hence indicating that this is likely a new WZ Sge type dwarf nova. A preliminary period analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso), yields a combined superhump period of 0.0581 +/- 0.0004d.  The object was at mag 12.53 (CV) on Sep 28th.  

 

Follow-up observations of this bright target are strongly encouraged.

 

Observations will be sent to AAVSO, CBA and VSNET for further analysis. 

 

Best regards
Tonny


 

Tonny Vanmunster
CBA Belgium Observatory
CBA Extremadura Observatory
 <http://www.cbabelgium.com> www.cbabelgium.com

 <http://www.peranso.com> www.peranso.com