[vsnet-alert 20769] SDSS J153015.04+094946.3: new SU UMa-type dwarf nova

[Tonny Vanmunster]

Dear colleagues,
 
I have just concluded the analysis of my 2017, Mar 11/12 unfiltered CCD photometry session of SDSS J153015.04+094946.3. Observations were made at CBA Belgium Observatory,  using a 0.40-m /f10.0 telescope and STT-3200ME CCD camera, under a clear sky with strong moonlight. The resulting light curve clearly shows the presence of superhumps with an amplitude of 0.17 mag. A period analysis using the ANOVA, PDM and Lomb-Scargle methods (Peranso), yields a combined preliminary superhump period of 0.0748 +/- 0.0019d, hence establishing this object as a new SU UMa-type dwarf nova. The object was at mag 16.5 (unfiltered).

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

Best regards
Tonny 


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Tonny Vanmunster
CBABelgium Observatory
www.cbabelgium.com <http://www.cbabelgium.com> 
www.peranso.com <http://www.peranso.com>