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
PERANSO: The Light Curve and Period Analysis Software
PHORANSO: Photometric Reduction and Analysis Software *** NEW – in beta mode ***