Dear colleagues,

I have just finished analysing my unfiltered CMOS observations of TCP J17321088+0807243 obtained on 2023, Jun 15/16 and June 16/17 at CBA Belgium Observatory using a 0.40-m f/10.0 telescope and QHY-268M CMOS camera under clear skies. My observations were triggered by Taichi Kato's post in vsnet-alert 27850.

The resulting light curve clearly shows the presence of superhumps with an amplitude of 0.32 mag, establishing TCP J17321088+0807243 as either a new SU UMa-type or WZ Sge-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 0.0612 +/- 0.0011d. The object was at mag CV = 17.0 on Jun 17th.

Image calibration and photometry were done using a beta version of Phoranso.

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 http://www.cbabelgium.com

PERANSO: The Light Curve and Period Analysis Software

http://www.peranso.com

PHORANSO: Photometric Reduction and Analysis Software *** NEW - in beta mode ***

http://www.phoranso.com