[vsnet-alert 21686] ASASSN-17qh: new SU UMa type dwarf nova

Tonny Vanmunster tonny.vanmunster at gmail.com
Sun Dec 10 21:56:10 JST 2017

Dear colleagues,

I have just concluded the analysis of my 2017, Dec 08/09 unfiltered CCD photometry session of ASASSN-17qh. Observations were made at CBA Belgium Observatory,  using a 0.40-m f/10.0 telescope and STT-3200ME CCD camera, under a clear sky. The resulting light curve shows the presence of small superhumps with an amplitude of 0.04 mag. A period analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso), yields a combined superhump period of 0.0580 +/- 0.0018d, hence establishing this object as a new SU UMa type dwarf nova. The object was at mag 13.15 (unfiltered) on Dec 08th. Photometry of this object is complicated by the presence of a nearby mag 13.4 star.   


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

Best regards


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

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