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[vsnet-obs 3153] DM Lyr superoutburst photometry
- Date: Thu, 18 Jul 1996 00:41:57 -0100
- To: vsnet-obs@kusastro.kyoto-u.ac.jp
- From: Tonny Vanmunster <tvanmuns@innet.be>
- Subject: [vsnet-obs 3153] DM Lyr superoutburst photometry
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
Dear Colleagues,
The DM Lyr CCD photometry, obtained last night (July 16/17) at the
CBA Belgium (unfiltered 90s exposures using a 25-cm SCT with ST-7 CCD)
clearly shows the existence of superhumps in this system (hence proving
the SU UMa nature). A very preliminary analysis of the superhump period
yields a best value of 0.067d +/- 0.001d (PDM method) and a mean amplitude
of 0.08 mag. These values correspond very well with the results obtained
independently by the Ouda team of Kyoto University, Japan.
At the moment of this writing, the telescope is performing another CCD
photometry run on DM Lyrae (July 17/18).
Best regards,
Tonny Vanmunster
CBA Belgium