[vsnet-alert 22898] ASASSN-15fh: new SU UMa type dwarf nova

[Tonny Vanmunster tonny.vanmunster@gmail.com via vsnet-alert]

Dear colleagues,

I have just concluded the analysis of my 2018, Dec 27/28 unfiltered CCD photometry session of ASASSN-15fh. Observations were made at CBA Belgium Observatory,  using a 0.40-m f/10.0 telescope and STT-3200ME CCD camera.

 

The resulting light curve clearly shows the presence of superhumps with an amplitude of 0.18 mag, hence classifying this object as a new SU UMa type dwarf nova. A period analysis using the ANOVA, Lomb-Scargle and PDM methods (Peranso), yields a combined superhump period of 0.0522 +/- 0.0008d. The object was at mag 15.3 (CV) on Dec 27th. 

 

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

 

Follow-up observations are highly recommended to further refine the superhump period.

 

Best regards
Tonny


 

Tonny Vanmunster
CBA Belgium Observatory
CBA Extremadura Observatory
 <http://www.cbabelgium.com> www.cbabelgium.com

www.peranso.com <http://www.peranso.com>