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[vsnet-obs 19849] Superhumps in AK Cnc

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PHOTOMETRIC CCD OBSERVATIONS OF VARIABLE STARS
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CENTER FOR BACKYARD ASTROPHYSICS  (CBA) DENMARK
Observer   :  Lasse Teist Jensen
Address     : Sdervej 38, DK - 8350 Hundslund , Denmark
E-mail        : ltj@cci.dk (at work)
                    : teist@image.dk (at home)
Phone      : (45) 86 55 02 13
CBA Denmark Page: http://vsnet.astro.columbia.edu/~cba/dk
Instruments:  0.25-m f/6.3 SCT , ST-6 SBIG CCD

Dear Colleagues,

I have now reduced the time series I got on AK Cnc a few days ago.
The lightcurve clearly shows superhumps with amplitude 0.2 mag and period around 1hour 40 minutes.
The period is only calculated by simply looking at the lightcurve. No statistics applied.

I haven't compared the found period with periods other observers might have found for AK Cnc.

An image showing the outburst and the light curve can be seen on the following page:

http://vsnet.image.dk/~teist/AKCnc.htm

Regards 

Lasse Teist Jensen (JLT)

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