Dear colleagues,
I have just finished analysing my unfiltered CCD observations of
PS1-3PIJ181025.43+193128.6 (aka Gaia18ama) obtained on 2023, May 18/19 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 27762.
The resulting light curve clearly shows the presence of regular superhumps
with an amplitude of 0.31 mag, establishing PS1-3PIJ181025.43+193128.6 as a
new SU …
[View More]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 0.0892 +/- 0.0020d. The object was at mag CV
= 14.5 on May 19th.
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
[View Less]
EW Hya: indeed SU UMa star
Greg Bolt has reported observations. The object showed
superhumps with a period of 0.081 d and an amplitude
of 0.17 mag on May 15. Further observations are requested
to refine the period.