[vsnet-outburst 25869] ZTF20acjpwas: new SU UMa-type dwarf nova

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

Dear colleagues,

I have just finished the analysis of my unfiltered CCD observations of ZTF20acjpwas = AT 2020wup, obtained on 2020, Oct 16/17 at CBA Extremadura Observatory, using a 0.40-m f/5.1 telescope and SX-46 CCD camera under clear skies. 

Superhumps with an amplitude of 0.27 mag are clearly visible in my light curve, establishing ZTF20acjpwas as a new SU UMa-type dwarf nova (considering the large outburst amplitude of 7 mag, a classification as WZ Sge-type dwarf nova is not excluded).  A period analysis using the ANOVA, Lomb-Scargle, Generalized-Lomb-Scargle and PDM methods (Peranso 3.0, in Beta testing), yields a combined superhump period of 0.0592 +/- 0.0008d. The object was at mag 15.2 (CV) on Oct 17th.

I will send my observations to AAVSO, CBA and VSNET for further analysis.

Follow-up observations are recommended to refine the superhump period.

Best regards
Tonny

--
Tonny Vanmunster
CBA Belgium Observatory
CBA Extremadura Observatory
www.cbabelgium.com
Beta testers wanted for Peranso 3.0