[vsnet-alert 19218] ASASSN-15dh: new SU UMa-type dwarf nova

[Tonny Vanmunster]

Dear colleagues,
 
I’m currently (2015, Nov 01/02) doing unfiltered CCD photometry of ASASSN-15dh. An intermediate analysis of the observations, made at CBA Belgium Observatory using a 0.35-m f/6.3 telescope and STT-3200ME CCD camera under clear skies, clearly reveals the presence of superhumps, establishing this target as a new SU UMa-type dwarf nova. The superhump amplitude is approx 0.37 mag. A preliminary period analysis using the ANOVA method (Peranso), yields a period of 0.0893 +/- 0.0004d. 

A more refined period analysis will be made upon completing the current observing session.

 

Further observations are encouraged.

Observations will be sent to CBA and VSNET for analysis.

Best regards
Tonny 

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