Dear colleagues,
I have just finished analysing my unfiltered CCD observations of TCP
J14034008+7947313, obtained over the past 7 nights between 2025, Feb 28 and
Mar 06 at CBA Belgium Observatory using a 0.40-m f/10.0 telescope and
QHY-268M CMOS camera under clear skies. No superhumps were visible in the
light curves of this object till 2025, Mar 6/7.
The light curve of 2025, Mar 6/7 clearly shows the presence of regular
superhumps with an amplitude of 0.18 mag, establishing TCP J14034008+7947313
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 0.0586 +/- 0.0003d. The object was at mag CV
= 15.3 on Mar 06th.
Image calibration and photometry were done using Phoranso, which allows to
simultaneously measure other variables present in the FOV of a variable
star.
I will send my observations to AAVSO, CBA and VSNET for further analysis.
With kind regards,
Tonny
---
Tonny Vanmunster
CBA Belgium Observatory
CBA Extremadura Observatory
http://www.cbabelgium.co <http://www.cbabelgium.com/> m
PERANSO : The Light Curve and Period Analysis Software
http://www.peranso.co <http://www.peranso.com/> m
PHORANSO: Photometric Reduction and Analysis Software
http://www.phoranso.com <http://www.phoranso.com/>