[vsnet-alert 20885] MASTER OT J192757.03+404042.8: new SU UMa-type dwarf nova

[Tonny Vanmunster]

Dear colleagues,
 
I have just concluded the analysis of my 2017, Apr 05/06 and Apr 06/07
unfiltered CCD photometry sessions of MASTER OT J192757.03+404042.8.
Observations were made at CBA Belgium Observatory,  using a 0.40-m /f10.0
telescope and STT-3200ME CCD camera, under initially clear skies. The
resulting light curve clearly shows the presence of superhumps with an
amplitude of 0.23 mag. A period analysis using the ANOVA, Lomb-Scargle and
PDM methods (Peranso), yields a combined preliminary superhump period of
0.0817 +/- 0.0002d, hence establishing this object as a new SU UMa-type
dwarf nova. The object was at mag 14.90 (unfiltered) on Apr 05/06th.

Observations will be sent to CBA and VSNET for further analysis.

Best regards
Tonny 


--
Tonny Vanmunster
CBABelgium Observatory
www.cbabelgium.com
www.peranso.com