[vsnet-outburst 27557] MASTER OT J231917.03+483114.2: new SU UMa-type dwarf nova

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

Dear colleagues,

I have just finished analysing my unfiltered CMOS observations of MASTER OT
J231917.03+483114.2, obtained on 2021, August 03/04 at CBA Belgium
Observatory, using a 0.40-m f/10.0 telescope and QHY-268M CMOS camera under
clear skies. 

Regular superhumps with an amplitude of 0.23 mag are clearly visible in the
resulting light curve, establishing MASTER OT J231917.03+483114.2 as a new
SU UMa-type dwarf nova. A period analysis using the ANOVA, Lomb-Scargle,
Generalized-Lomb-Scargle and PDM methods (Peranso 3.0), yields a combined
superhump period of 0.0824 +/- 0.0017d. The object was at mag CV = 16.4 on
Aug 04th.

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

Best regards
Tonny

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

PERANSO : The Light Curve and Period Analysis Software
http://www.peranso.com