[vsnet-alert 18702] IPHAS J230538.39+652158.7: new SU UMa-type dwarf nova

[Tonny Vanmunster]

Dear colleagues,
 
Last night (2015, Jun 07/08), I obtained unfiltered CCD photometry observations of IPHAS J230538.39+652158.7. Observations were made at CBA Belgium Observatory,  using a 0.35-m f/6.3 telescope and STT-3200ME CCD camera, under clear skies. The resulting light curve covers a time span of 3.6 hours and clearly shows the presence of growing superhumps, hence establishing this target as a new SU UMa-type dwarf nova. The sumperhump amplitude is approx 0.2 mag. A period analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso), yields a period of 0.068 +/- 0.001d. 

Further observations are evidently encouraged.


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

 
Best regards
Tonny 

 
 <http://www.cbabelgium.com> www.cbabelgium.com
 <http://www.peranso.com> www.peranso.com