[vsnet-alert 20841] SDSS J131432.10+444138.7: new SU UMa-type dwarf nova

Tonny Vanmunster tonny.vanmunster at gmail.com
Fri Mar 31 04:15:45 JST 2017

Dear colleagues,
I have just concluded the analysis of my 2017, Mar 29/30 unfiltered CCD
photometry session of SDSS J131432.10+444138.7. Observations were made at
CBA Belgium Observatory,  using a 0.40-m /f10.0 telescope and STT-3200ME CCD
camera, under a sky with broken clouds. The resulting light curve clearly
shows the presence of superhumps with an amplitude of 0.28 mag. A period
analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso), yields a
combined preliminary superhump period of 0.0673 +/- 0.0008d, hence
establishing this object as a new SU UMa-type dwarf nova. The object was at
mag 15.55 (unfiltered).

I plan to obtain more intensive coverage of this object as part of tonight's
observation cycle.

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

Best regards

Tonny Vanmunster
CBABelgium Observatory

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