[vsnet-alert 19582] SDSS J164248.52+134751.4: new SU UMa-type dwarf nova

[Tonny Vanmunster]

Dear colleagues,

 

Last night (2016, Mar 13/14), I have been doing unfiltered CCD photometry of SDSS J164248.52+134751.4. Observations were made at CBA Belgium Observatory,  using a 0.35-m f/6.3 telescope and STT-3200ME CCD camera, under very clear skies. The resulting light curve clearly shows the presence of superhumps. As far as I know, this object was not previously known to be a SU Uma-type dwarf nova, which is now established with my observations. The amplitude is approx 0.27 mag. A period analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso), yields a combined period of 0.0799 +/- 0.0029d. 

 

Further observations are evidently encouraged.

 

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

 

Best regards

Tonny 

 

www.cbabelgium.com

www.peranso.com