[vsnet-outburst 21856] MASTER OT J024850.29+401449.5: new SU UMa type dwarf nova - updated suprhump period

Sun Feb 18 11:55:55 JST 2018

Dear colleagues,

I have just concluded the analysis of my 2018, Feb 17/18 unfiltered CCD photometry session of MASTER OT J024850.29+401449.5. 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 clearly shows the presence of superhumps with an amplitude of 0.16 mag. Combining my observations with the ones I obtained yesterday, I made a period analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso). It yields an updated superhump period of 0.0604 +/- 0.0024d. The object was at mag 16.95 (unfiltered) on Feb 17th.  

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

Best regards
Tonny

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Tonny Vanmunster
CBA Belgium Observatory

CBA Extremadura Observatory – NEW !!!
 <http://www.cbabelgium.com> www.cbabelgium.com
 <http://www.peranso.com> www.peranso.com

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